{"title":"Op-Amps — Operational Amplifier ICs","description":"\u003ch2\u003eOperational Amplifier ICs — Single, Dual \u0026amp; Quad Op-Amps\u003c\/h2\u003e\n\n\u003cp\u003eOperational amplifiers (op-amps) are the most versatile analog ICs ever made — a single op-amp can amplify, filter, compare, integrate, differentiate, or buffer any analog signal. This collection covers the complete range of general-purpose and audio op-amps, from the classic \u003cstrong\u003eUA741\u003c\/strong\u003e (the original op-amp, ideal for education) to high-performance audio op-amps like the \u003cstrong\u003eNE5532\u003c\/strong\u003e and \u003cstrong\u003eNJM4580\u003c\/strong\u003e used in professional audio equipment. Available in DIP (through-hole) and SOP (SMD) packages.\u003c\/p\u003e\n\n\u003ch3\u003eGeneral-Purpose Op-Amps\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUA741 \/ LM741C:\u003c\/strong\u003e Single, 1MHz GBW, ±15V — the original op-amp, ideal for electronics education and legacy repair\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLM358 \/ AS358M:\u003c\/strong\u003e Dual, single-supply 3V–32V, input to GND — most popular op-amp for battery-powered circuits and sensor amplification\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLM324N \/ LM224:\u003c\/strong\u003e Quad, single-supply 3V–32V — four op-amps in one package for multi-channel signal conditioning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eJFET Op-Amps (Low Noise, High Slew Rate)\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTL072 \/ TL082:\u003c\/strong\u003e Dual JFET, 3MHz GBW, 13V\/μs — the standard audio op-amp for guitar effects, synthesizers, and active filters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTL074 \/ TL084:\u003c\/strong\u003e Quad JFET, 3MHz GBW — four JFET channels for audio mixing and multi-stage filter banks\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTL064:\u003c\/strong\u003e Quad JFET, low-power — battery-powered audio circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAudio Op-Amps (High Performance)\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNE5532:\u003c\/strong\u003e Dual, 10MHz GBW, 9nV\/√Hz noise — the industry standard for professional audio preamplifiers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNJM4580 \/ NJM4560:\u003c\/strong\u003e Dual JRC audio op-amps — found in CD players, DACs, and headphone amplifiers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNJM4562 \/ NJM4585:\u003c\/strong\u003e High-performance JRC audio op-amps for DAC output buffering and headphone driving\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAudio Power Amplifier ICs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLM386:\u003c\/strong\u003e 0.25W–1W, 4V–12V — portable speaker driver for Arduino and battery-powered audio\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e8002A \/ MD8002A:\u003c\/strong\u003e 3W BTL, 5V — compact speaker driver for USB-powered and IoT audio\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOp-Amp Selection Guide\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEducation \/ legacy repair:\u003c\/strong\u003e UA741, LM741C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery-powered \/ sensor circuits:\u003c\/strong\u003e LM358, LM324 (single-supply, input to GND)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAudio \/ guitar effects \/ synthesizers:\u003c\/strong\u003e TL072, TL074, NE5532\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProfessional audio \/ DAC output:\u003c\/strong\u003e NJM4580, NJM4562, NE5532\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePortable speaker:\u003c\/strong\u003e LM386, 8002A\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAll op-amp ICs are new, original, and RoHS compliant. Available in DIP-8, DIP-14, SOP-8, and SOP-14 packages.\u003c\/p\u003e","products":[{"product_id":"lm386-audio-amplifier","title":"LM386 Low Voltage Audio Amplifier IC — DIP-8","description":"\u003ch2\u003eLM386 Low Voltage Audio Amplifier IC — DIP-8\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLM386\u003c\/strong\u003e is the most popular low-voltage audio power amplifier IC for hobbyist and Arduino projects. Operating from \u003cstrong\u003e4V to 12V\u003c\/strong\u003e with adjustable gain from \u003cstrong\u003e20× to 200×\u003c\/strong\u003e, it can drive an 8Ω speaker at up to \u003cstrong\u003e1W output power\u003c\/strong\u003e. The DIP-8 package is breadboard compatible, making it ideal for prototyping audio amplifier circuits.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePackage: \u003cstrong\u003eDIP-8\u003c\/strong\u003e | Supply voltage: \u003cstrong\u003e4–12V\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOutput power: \u003cstrong\u003e0.25W (6V) to 1W (12V)\u003c\/strong\u003e into 8Ω\u003c\/li\u003e\n\u003cli\u003eVoltage gain: \u003cstrong\u003e20× (26dB) to 200× (46dB)\u003c\/strong\u003e adjustable\u003c\/li\u003e\n\u003cli\u003eQuiescent current: \u003cstrong\u003e4mA\u003c\/strong\u003e | Bandwidth: \u003cstrong\u003e300kHz\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTHD: \u003cstrong\u003e0.2%\u003c\/strong\u003e at 125mW | Input impedance: \u003cstrong\u003e50kΩ\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompliance: \u003cstrong\u003eRoHS compliant\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose This?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eBreadboard compatible DIP-8\u003c\/strong\u003e — ideal for prototyping audio circuits\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eLow voltage operation\u003c\/strong\u003e — works from 4V battery supply\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eAdjustable gain\u003c\/strong\u003e — set gain with a single resistor between pins 1 and 8\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eMinimal external components\u003c\/strong\u003e — functional with just a few capacitors and resistors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eArduino audio output speaker amplifier\u003c\/li\u003e\n\u003cli\u003eBattery-powered portable audio amplifier\u003c\/li\u003e\n\u003cli\u003eIntercom and walkie-talkie audio stage\u003c\/li\u003e\n\u003cli\u003eSignal amplification in audio processing circuits\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45667775447275,"sku":"","price":10.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/LM386-Audio-Amplifier-1.jpg?v=1723010184"},{"product_id":"lm386-audio-amplifier-module","title":"LM386 Audio Amplifier Module — 200× Gain, 5V","description":"\u003ch2\u003eLM386 Audio Amplifier Module — 200× Gain, 5V\u003c\/h2\u003e\n\u003cp\u003eA ready-to-use \u003cstrong\u003eLM386 audio amplifier module\u003c\/strong\u003e with \u003cstrong\u003e200× gain\u003c\/strong\u003e, \u003cstrong\u003evolume potentiometer\u003c\/strong\u003e, and \u003cstrong\u003e3.5mm audio input\u003c\/strong\u003e. Drives an 8Ω speaker at up to \u003cstrong\u003e0.5W\u003c\/strong\u003e from a 5V supply — no external components needed. Simply connect power, audio input, and speaker to start amplifying. Ideal for Arduino audio output, portable speaker projects, and audio signal amplification.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003e200× gain (46dB)\u003c\/strong\u003e — maximum LM386 gain for strong audio output\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eVolume potentiometer\u003c\/strong\u003e — adjustable output level\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e3.5mm audio input\u003c\/strong\u003e — connect directly to phone, MP3 player or Arduino DAC\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSpeaker terminal\u003c\/strong\u003e — direct 8Ω speaker connection\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e5V supply\u003c\/strong\u003e — powered directly from Arduino 5V pin\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eRoHS compliant\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIC: \u003cstrong\u003eLM386\u003c\/strong\u003e | Gain: \u003cstrong\u003e200× (46dB)\u003c\/strong\u003e | Supply: \u003cstrong\u003e5V\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOutput power: \u003cstrong\u003e0.5W\u003c\/strong\u003e into 8Ω | Input: \u003cstrong\u003e3.5mm jack\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eArduino audio output speaker amplifier\u003c\/li\u003e\n\u003cli\u003ePortable battery-powered speaker\u003c\/li\u003e\n\u003cli\u003eAudio signal amplification and monitoring\u003c\/li\u003e\n\u003cli\u003eIntercom and voice playback amplifier\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45667782066411,"sku":"","price":12.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/LM386-Audio-Amplifier-Module.jpg?v=1723010175"},{"product_id":"lm358-dual-op-amp-module","title":"LM358 Dual Operational Amplifier Module — Comparator \u0026 Signal Conditioning","description":"\u003ch2\u003eLM358 Dual Operational Amplifier Module — Comparator \u0026amp; Signal Conditioning\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLM358 dual op-amp module\u003c\/strong\u003e provides two independent operational amplifier channels for \u003cstrong\u003esignal conditioning, voltage comparison, and amplification\u003c\/strong\u003e in Arduino projects. The LM358 operates from a \u003cstrong\u003esingle 3V–32V supply\u003c\/strong\u003e — no dual supply needed — making it ideal for battery-powered and 5V Arduino applications. Includes an adjustable threshold potentiometer for comparator applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIC: \u003cstrong\u003eLM358\u003c\/strong\u003e | Channels: \u003cstrong\u003e2 independent op-amps\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupply voltage: \u003cstrong\u003e3–32V single supply\u003c\/strong\u003e | Output: \u003cstrong\u003eAnalog \u0026amp; digital (comparator)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eGain bandwidth: \u003cstrong\u003e1MHz\u003c\/strong\u003e | Slew rate: \u003cstrong\u003e0.6V\/μs\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdjustable threshold: \u003cstrong\u003eOn-board potentiometer\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompliance: \u003cstrong\u003eRoHS compliant\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSensor signal amplification and conditioning\u003c\/li\u003e\n\u003cli\u003eVoltage comparator with adjustable threshold\u003c\/li\u003e\n\u003cli\u003eVoltage follower and buffer circuits\u003c\/li\u003e\n\u003cli\u003eArduino analog signal processing\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45670638551275,"sku":"","price":9.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/LM358-Amplifier-Module-1.jpg?v=1723009531"},{"product_id":"lm386-audio-amplifier-module-adjustable-gain","title":"LM386 Audio Amplifier Module — Adjustable Gain, 5V","description":"\u003ch2\u003eLM386 Audio Amplifier Module — Adjustable Gain, 5V\u003c\/h2\u003e\n\u003cp\u003eA ready-to-use \u003cstrong\u003eLM386 audio amplifier module\u003c\/strong\u003e with \u003cstrong\u003eadjustable gain\u003c\/strong\u003e (20×–200×), \u003cstrong\u003evolume potentiometer\u003c\/strong\u003e, and audio input. Drives an 8Ω speaker at up to \u003cstrong\u003e0.5W\u003c\/strong\u003e from a 5V supply. Simply connect power, audio input, and speaker to start amplifying. Ideal for Arduino audio output, portable speaker projects, and audio signal amplification.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eAdjustable gain (20×–200×)\u003c\/strong\u003e — set gain via on-board jumper or resistor\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eVolume potentiometer\u003c\/strong\u003e — adjustable output level\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSpeaker terminal\u003c\/strong\u003e — direct 8Ω speaker connection\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e5V supply\u003c\/strong\u003e — powered directly from Arduino 5V pin\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eRoHS compliant\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIC: \u003cstrong\u003eLM386\u003c\/strong\u003e | Gain: \u003cstrong\u003e20×–200× adjustable\u003c\/strong\u003e | Supply: \u003cstrong\u003e5V\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOutput power: \u003cstrong\u003e0.5W\u003c\/strong\u003e into 8Ω\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eArduino audio output speaker amplifier\u003c\/li\u003e\n\u003cli\u003ePortable battery-powered speaker\u003c\/li\u003e\n\u003cli\u003eAudio signal amplification and monitoring\u003c\/li\u003e\n\u003cli\u003eIntercom and voice playback amplifier\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45670639141099,"sku":"","price":9.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/LM386-Audio-Amplifier-Module_19d1e48a-71e0-41a3-a62a-61ad766fe679.jpg?v=1723009522"},{"product_id":"lm324n-quad-single-supply-op-amp-ic-dip14","title":"LM324N Quad Single-Supply Op-Amp IC DIP-14 – 3V–32V, 4 Channels","description":"\u003ch2\u003eLM324N Quad Single-Supply Op-Amp IC – DIP-14\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eLM324N\u003c\/strong\u003e is the quad version of the LM358 – four independent single-supply operational amplifiers in a single DIP-14 package. With single-supply operation from 3V to 32V, input common-mode range extending to ground, and output swing to within millivolts of the negative rail, it's the go-to quad op-amp for battery-powered circuits, multi-channel sensor conditioning, and analog processing where four op-amp channels are needed. The LM324 is one of the most widely produced op-amps in history and appears in countless consumer electronics and industrial designs.\u003c\/p\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LM324N \/ LM324 \/ LM324AN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e DIP-14 (through-hole, 2.54mm pitch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOp-Amps:\u003c\/strong\u003e 4 (quad, independent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 3V – 32V (single) \/ ±1.5V – ±16V (dual)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Common-Mode Range:\u003c\/strong\u003e GND to VCC−1.5V (includes ground)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Swing:\u003c\/strong\u003e 0V to VCC−1.5V (single supply)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGBW:\u003c\/strong\u003e 1 MHz (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlew Rate:\u003c\/strong\u003e 0.5 V\/μs (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Current (all 4):\u003c\/strong\u003e 0.8mA (typical at 5V)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to +70°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-channel sensor conditioning:\u003c\/strong\u003e 4-channel amplification for temperature, pressure, and current sensors\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComparator arrays:\u003c\/strong\u003e 4 voltage threshold detectors in one package\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActive filter banks:\u003c\/strong\u003e Multi-stage low-pass, high-pass, and bandpass filters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery-powered circuits:\u003c\/strong\u003e Single-supply analog processing from 3V–5V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSumming amplifiers:\u003c\/strong\u003e 4-channel audio mixer or signal combiner\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArduino signal conditioning:\u003c\/strong\u003e Multi-channel sensor amplification before ADC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × LM324N DIP-14 quad single-supply op-amp IC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFour single-supply op-amps in one DIP-14 package – the LM324N is the go-to quad op-amp for multi-channel sensor conditioning, active filter banks, and battery-powered analog circuit design.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45674464739563,"sku":"","price":5.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/LM324-Quad-Op-Amp.jpg?v=1723007422"},{"product_id":"lm358-dual-single-supply-op-amp-ic-dip8","title":"LM358 Dual Single-Supply Op-Amp IC DIP-8 – 3V–32V, Input Range to GND","description":"\u003ch2\u003eLM358 Dual Single-Supply Op-Amp IC – DIP-8\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eLM358\u003c\/strong\u003e is the most widely used dual single-supply operational amplifier – two independent op-amps in a single DIP-8 package, designed to operate from a single supply voltage as low as 3V. Unlike the UA741 which requires a dual (±) supply, the LM358's input common-mode range extends to ground and its output swings to within millivolts of the negative rail, making it ideal for battery-powered circuits, sensor signal conditioning, and any application where a single supply is preferred. The LM358 appears in virtually every analog electronics textbook and is found in countless consumer electronics designs.\u003c\/p\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LM358 \/ LM358N \/ LM358P\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e DIP-8 (through-hole, 2.54mm pitch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOp-Amps:\u003c\/strong\u003e 2 (dual, independent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 3V – 32V (single) \/ ±1.5V – ±16V (dual)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Common-Mode Range:\u003c\/strong\u003e GND to VCC−1.5V (includes ground)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Swing:\u003c\/strong\u003e 0V to VCC−1.5V (single supply)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGBW:\u003c\/strong\u003e 1 MHz (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlew Rate:\u003c\/strong\u003e 0.6 V\/μs (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Current:\u003c\/strong\u003e 0.5mA (typical, both amplifiers)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to +70°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensor amplification:\u003c\/strong\u003e Amplify temperature, light, and pressure sensor outputs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComparator:\u003c\/strong\u003e Voltage threshold detection (use LM393 for dedicated comparator)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActive filters:\u003c\/strong\u003e Low-pass, high-pass, and bandpass filter stages\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery-powered circuits:\u003c\/strong\u003e Single-supply analog processing from 3V–5V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArduino signal conditioning:\u003c\/strong\u003e Amplify sensor signals before ADC input\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSumming amplifier:\u003c\/strong\u003e Mix two analog signals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × LM358 DIP-8 dual single-supply op-amp IC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eTwo single-supply op-amps in one DIP-8 package – the LM358 is the go-to dual op-amp for battery-powered circuits, sensor amplification, and any application requiring single-supply operation.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45674467328235,"sku":"","price":5.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/LM358-Dual-Op-Amp-1.jpg?v=1723007403"},{"product_id":"lm741c-ua741-general-purpose-op-amp-ic-dip8","title":"LM741C \/ UA741 General-Purpose Op-Amp IC DIP-8 – Single, 1MHz GBW","description":"\u003ch2\u003eLM741C \/ UA741 General-Purpose Op-Amp IC – DIP-8\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eLM741C (UA741)\u003c\/strong\u003e is the original general-purpose operational amplifier – the IC that defined the op-amp category and has been in continuous production since 1968. While modern op-amps like the TL072 and NE5532 offer superior performance, the LM741 remains the standard teaching IC for op-amp fundamentals: its characteristics are well-documented in every analog electronics textbook, its behavior is predictable, and its limitations make it an excellent tool for understanding op-amp theory. The DIP-8 package is ideal for breadboard prototyping and electronics education.\u003c\/p\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LM741C \/ LM741CN \/ UA741 \/ μA741\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e DIP-8 (through-hole, 2.54mm pitch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComparators:\u003c\/strong\u003e 1 (single)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e ±5V to ±18V (dual supply required)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGBW:\u003c\/strong\u003e 1 MHz (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlew Rate:\u003c\/strong\u003e 0.5 V\/μs (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Offset Voltage:\u003c\/strong\u003e 1mV (typical), 6mV (max)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOpen-Loop Gain:\u003c\/strong\u003e 200V\/mV (106dB)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Short-Circuit Protection:\u003c\/strong\u003e Yes (indefinite)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to +70°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectronics education:\u003c\/strong\u003e Inverting\/non-inverting amplifier, integrator, differentiator lab exercises\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLegacy circuit repair:\u003c\/strong\u003e Replacement for LM741\/UA741 in older analog equipment\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSumming amplifier:\u003c\/strong\u003e Audio mixer and signal summing circuits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActive filters:\u003c\/strong\u003e Low-frequency filter design (limited by 1MHz GBW)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage follower:\u003c\/strong\u003e Buffer\/impedance converter circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × LM741C DIP-8 single general-purpose op-amp IC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe original op-amp – the LM741C is the standard teaching IC for operational amplifier fundamentals and the go-to replacement for legacy analog circuit repair.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45674467557611,"sku":"","price":5.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/LM741-Op-Amp.jpg?v=1723007399"},{"product_id":"lm386-low-voltage-audio-amplifier-ic-dip8-0-25w-1w","title":"LM386 Low-Voltage Audio Amplifier IC DIP-8 – 0.25W to 1W, 4V–12V Supply","description":"\u003ch2\u003eLM386 Low-Voltage Audio Amplifier IC – DIP-8\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eLM386\u003c\/strong\u003e is the classic low-voltage audio power amplifier IC – a self-contained mono amplifier that drives a small speaker directly from a 4V to 12V supply with no external power transistors required. With adjustable gain from 20× to 200× and output power from 0.25W to 1W depending on supply voltage and load, it's the go-to IC for portable speaker projects, Arduino audio output, intercoms, and battery-powered audio applications. The DIP-8 package makes it ideal for breadboard prototyping.\u003c\/p\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LM386 \/ LM386N \/ LM386N-1 \/ LM386N-3 \/ LM386N-4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e DIP-8 (through-hole, 2.54mm pitch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 4V – 12V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Power:\u003c\/strong\u003e 0.25W (4Ω, 6V) \/ 0.5W (8Ω, 9V) \/ 1W (8Ω, 12V, LM386N-4)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGain:\u003c\/strong\u003e 20× (default) to 200× (with 10μF between pins 1 and 8)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e 50kΩ\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuiescent Current:\u003c\/strong\u003e 4mA (typical at 6V)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTHD:\u003c\/strong\u003e 0.2% (typical at 125mW, 8Ω, 6V)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to +70°C\u003c\/li\u003e\n  \u003cli\u003eBuilt-in thermal shutdown protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGain Setting\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e20× (26dB):\u003c\/strong\u003e Pins 1 and 8 open (default)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e50× (34dB):\u003c\/strong\u003e 1.2kΩ resistor between pins 1 and 8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e200× (46dB):\u003c\/strong\u003e 10μF capacitor between pins 1 and 8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArduino speaker driver:\u003c\/strong\u003e Drive a small 8Ω speaker from Arduino PWM or DAC output\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePortable speaker:\u003c\/strong\u003e Battery-powered compact speaker amplifier\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntercom system:\u003c\/strong\u003e Voice amplification for two-way communication\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWalkie-talkie audio:\u003c\/strong\u003e Receiver audio amplifier stage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAM\/FM radio:\u003c\/strong\u003e Audio output stage for radio receiver circuits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIoT audio alerts:\u003c\/strong\u003e Speaker driver for notification and alarm sounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × LM386 DIP-8 low-voltage audio amplifier IC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe classic portable audio amplifier IC – the LM386 drives a small speaker directly from 4V–12V with adjustable gain up to 200× and no external power transistors required.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45674468704491,"sku":"","price":5.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/LM386-Audio-Amplifier-1_c81644d3-22fd-4075-9554-4faedfb832d4.jpg?v=1723007394"},{"product_id":"tl082cp-dual-jfet-op-amp-ic-dip8","title":"TL082CP Dual JFET Op-Amp IC DIP-8 – Low-Noise, Wide-Bandwidth","description":"\u003ch2\u003eTL082CP Dual JFET Op-Amp IC – DIP-8\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eTL082CP\u003c\/strong\u003e is a dual JFET-input operational amplifier in a DIP-8 package – the lower-cost, slightly higher-noise sibling of the popular TL072. Both share the same JFET input architecture with very low input bias current (200pA typical), 3MHz gain-bandwidth product, and 13V\/μs slew rate. The TL082 is an excellent general-purpose dual op-amp for audio circuits, active filters, and signal processing where two op-amp channels are needed and the tighter specifications of the TL072 are not required.\u003c\/p\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e TL082CP \/ TL082 \/ TL082ACP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e DIP-8 (through-hole, 2.54mm pitch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Op-Amps:\u003c\/strong\u003e 2 (dual)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Type:\u003c\/strong\u003e JFET (low input bias current: ~200pA typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e ±2.25V to ±18V (dual supply)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGBW:\u003c\/strong\u003e 3 MHz (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlew Rate:\u003c\/strong\u003e 13 V\/μs (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Offset Voltage:\u003c\/strong\u003e 3mV (typical), 15mV (max) – higher than TL072\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Noise Voltage:\u003c\/strong\u003e 18nV\/√Hz (vs 18nV\/√Hz for TL072 – similar)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to +70°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTL082 vs TL072 – Which to Choose?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTL072:\u003c\/strong\u003e Tighter offset spec (3mV typical, 6mV max), lower noise – preferred for precision audio\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTL082:\u003c\/strong\u003e Higher offset spec (3mV typical, 15mV max) – lower cost, suitable for general-purpose use\u003c\/li\u003e\n  \u003cli\u003eBoth have identical GBW (3MHz) and slew rate (13V\/μs) – same speed\u003c\/li\u003e\n  \u003cli\u003eUse TL072 for audio preamplifiers and precision circuits; TL082 for general signal processing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAudio circuits:\u003c\/strong\u003e Preamplifiers, tone controls, and signal conditioning\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActive filters:\u003c\/strong\u003e Low-pass, high-pass, and bandpass filter stages\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSynthesizers:\u003c\/strong\u003e VCO, VCF, and envelope generator circuits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstrumentation:\u003c\/strong\u003e Dual-channel signal amplification and conditioning\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGuitar effects:\u003c\/strong\u003e Overdrive, distortion, and modulation circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × TL082CP DIP-8 dual JFET op-amp IC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eTwo JFET op-amps in one DIP-8 package – the TL082CP delivers 3MHz bandwidth and 13V\/μs slew rate for audio and signal processing applications at a lower cost than the TL072.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45674493575403,"sku":"","price":5.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/TL082IP-Dual-Op-Amp.jpg?v=1723007257"},{"product_id":"tl084cn-quad-jfet-op-amp-ic-dip14","title":"TL084CN Quad JFET Op-Amp IC DIP-14 – Wide-Bandwidth, Low-Noise","description":"\u003ch2\u003eTL084CN Quad JFET Op-Amp IC – DIP-14\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eTL084CN\u003c\/strong\u003e is a quad JFET-input operational amplifier – four high-performance op-amps in a single DIP-14 package, sharing the same low-noise JFET input architecture as the popular TL072 dual op-amp. With a 3MHz gain-bandwidth product, 13V\/μs slew rate, and very low input bias current (65pA typical), the TL084 is an excellent choice for audio circuits, active filters, and precision signal processing where four op-amp channels are needed in one package.\u003c\/p\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e TL084CN \/ TL084 \/ TL084ACN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e DIP-14 (through-hole, 2.54mm pitch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Op-Amps:\u003c\/strong\u003e 4 (quad)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Type:\u003c\/strong\u003e JFET (very low input bias current: ~65pA)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e ±2.25V to ±18V (dual supply)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGBW:\u003c\/strong\u003e 3 MHz (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlew Rate:\u003c\/strong\u003e 13 V\/μs (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Offset Voltage:\u003c\/strong\u003e 3mV (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Bias Current:\u003c\/strong\u003e 65pA (typical) – 26× lower than UA741\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to +70°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTL084 vs TL074 – Are They the Same?\u003c\/h3\u003e\n\u003cp\u003eThe TL084 and TL074 are functionally nearly identical – same JFET input architecture, same GBW (3MHz), same slew rate (13V\/μs). The TL074 has slightly tighter specifications (lower offset voltage, lower noise) and is pin-compatible. In most audio and general-purpose applications, TL084 and TL074 are interchangeable.\u003c\/p\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAudio mixing:\u003c\/strong\u003e 4-channel summing amplifier stages\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActive crossovers:\u003c\/strong\u003e Multi-band filter design for speaker systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSynthesizers \/ Eurorack:\u003c\/strong\u003e VCF, VCA, envelope follower, and mixer stages\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActive filters:\u003c\/strong\u003e Sallen-Key and MFB filter banks\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstrumentation:\u003c\/strong\u003e Multi-channel signal conditioning\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGuitar effects:\u003c\/strong\u003e Multi-stage overdrive, EQ, and modulation circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × TL084CN DIP-14 quad JFET op-amp IC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFour JFET op-amps in one DIP-14 package – the TL084CN delivers 3MHz bandwidth and 13V\/μs slew rate for audio mixing, active filters, and multi-channel signal processing.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45674494656747,"sku":"","price":5.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/TL084CN-Quad-Op-Amp.jpg?v=1723007252"},{"product_id":"2pcs-njm-series-dip-8-operational-amplifier-ics-njm022d-njm555d","title":"2PCS NJM Series DIP-8 Operational Amplifier \u0026 ICs NJM022D–NJM555D","description":"\u003ch2\u003eNJM Series DIP-8 Operational Amplifier \u0026amp; ICs — NJM022D–NJM555D, 2pcs\u003c\/h2\u003e\n\u003cp\u003eA 2-piece pack of NJM (New Japan Radio \/ JRC) series DIP-8 operational amplifier and timer ICs, covering the NJM022D through NJM555D range. NJM series ICs are manufactured by New Japan Radio (NJR) and are widely used in audio equipment, signal processing, and general-purpose analogue circuit design. The NJM series is known for low noise, low distortion, and audio-grade performance, making these ICs popular in HIFI audio preamplifiers, equalizers, and signal conditioning circuits.\u003c\/p\u003e\n\u003ch3\u003eNJM Series Reference\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eKey Specification\u003c\/th\u003e\n\u003cth\u003eTypical Use\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNJM022D\u003c\/td\u003e\n\u003ctd\u003eDual op-amp\u003c\/td\u003e\n\u003ctd\u003eLow noise, JFET input\u003c\/td\u003e\n\u003ctd\u003eAudio preamplifier, instrumentation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNJM4558D\u003c\/td\u003e\n\u003ctd\u003eDual op-amp\u003c\/td\u003e\n\u003ctd\u003eGeneral purpose, ±15V\u003c\/td\u003e\n\u003ctd\u003eAudio mixing, signal processing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNJM2043D\u003c\/td\u003e\n\u003ctd\u003eDual op-amp\u003c\/td\u003e\n\u003ctd\u003eLow noise audio\u003c\/td\u003e\n\u003ctd\u003eHIFI preamplifier, phono stage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNJM555D\u003c\/td\u003e\n\u003ctd\u003eTimer IC\u003c\/td\u003e\n\u003ctd\u003eNJR equivalent of NE555\u003c\/td\u003e\n\u003ctd\u003eOscillator, timer, PWM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical Specifications (General)\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eDIP-8 (through-hole)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eNew Japan Radio (NJR \/ JRC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e±3V to ±18V (op-amp variants, check datasheet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0°C to +70°C (commercial grade)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Quantity\u003c\/td\u003e\n\u003ctd\u003e2pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eRoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Preamplifier:\u003c\/strong\u003e NJM op-amps in microphone preamplifier, phono stage, and line-level preamplifier circuits for HIFI audio equipment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Conditioning:\u003c\/strong\u003e Instrumentation amplifier and signal conditioning circuits for sensor signal amplification and filtering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Filter:\u003c\/strong\u003e Low-pass, high-pass, and bandpass active filter design for audio crossover and signal processing applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOscillator (NJM555D):\u003c\/strong\u003e Astable and monostable timer circuits using the NJM555D as a direct NE555 equivalent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHIFI Upgrade:\u003c\/strong\u003e Replace standard op-amps in vintage audio equipment with NJM audio-grade equivalents for improved noise and distortion performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are NJM ICs compatible with standard op-amp pinouts?\u003c\/strong\u003e\u003cbr\u003eA: Yes. NJM dual op-amps (NJM022D, NJM4558D, etc.) use the standard 8-pin dual op-amp pinout (same as LM358, TL072, NE5532) and are pin-compatible drop-in replacements in most circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the NJM555D compatible with the NE555?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The NJM555D is a direct pin-compatible equivalent of the NE555 timer IC with identical electrical characteristics.\u003c\/p\u003e\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e2 × NJM series DIP-8 IC (part number as selected)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"NJM555D","offer_id":46985504260331,"sku":"14:496#NJM555D","price":15.08,"currency_code":"USD","in_stock":true},{"title":"NJM386BD","offer_id":46985504293099,"sku":"14:175#NJM386BD","price":21.0,"currency_code":"USD","in_stock":true},{"title":"NJM360D","offer_id":46985504325867,"sku":"14:173#NJM360D","price":15.4,"currency_code":"USD","in_stock":true},{"title":"NJM431D","offer_id":46985504358635,"sku":"14:366#NJM431D","price":14.96,"currency_code":"USD","in_stock":true},{"title":"NJM386D","offer_id":46985504391403,"sku":"14:193#NJM386D","price":36.84,"currency_code":"USD","in_stock":true},{"title":"NJM311D","offer_id":46985504424171,"sku":"14:10#NJM311D","price":14.96,"currency_code":"USD","in_stock":true},{"title":"NJM082D","offer_id":46985504456939,"sku":"14:201659813#NJM082D","price":14.36,"currency_code":"USD","in_stock":true},{"title":"NJM353D","offer_id":46985504489707,"sku":"14:94#NJM353D","price":12.64,"currency_code":"USD","in_stock":true},{"title":"NJM318D","offer_id":46985504522475,"sku":"14:29#NJM318D","price":14.96,"currency_code":"USD","in_stock":true},{"title":"NJM062D","offer_id":46985504555243,"sku":"14:350852#NJM062D","price":15.04,"currency_code":"USD","in_stock":true},{"title":"NJM022D","offer_id":46985504588011,"sku":"14:1202#NJM022D","price":23.28,"currency_code":"USD","in_stock":true},{"title":"NJM072D","offer_id":46985504620779,"sku":"14:4044226#NJM072D","price":12.52,"currency_code":"USD","in_stock":true},{"title":"NJM072BD","offer_id":46985504653547,"sku":"14:351074#NJM072BD","price":10.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/njm-dip8-op-amp-ics-njm022d-njm555d.webp?v=1761279920"},{"product_id":"njm4560m-njm4562-njm4565-njm4580-njm4585-dual-audio-op-amp-ic-sop8-3pcs","title":"NJM4560M \/ NJM4562 \/ NJM4565 \/ NJM4580 \/ NJM4585 Dual Audio Op-Amp IC SOP-8 – Pack of 3","description":"\u003ch2\u003eNJM4560M \/ NJM4562 \/ NJM4565 \/ NJM4580 \/ NJM4585 Dual Audio Op-Amp IC – SOP-8, Pack of 3\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eNJM4560 \/ NJM4580 series\u003c\/strong\u003e from JRC (Japan Radio Company \/ New Japan Radio) are high-performance dual audio operational amplifiers in SOP-8 surface-mount packages, widely used in professional and consumer audio equipment. These ICs are found in CD players, DACs, headphone amplifiers, mixing consoles, and audio preamplifiers – and are among the most commonly replaced op-amps in audio equipment repair. This 3-piece SOP-8 pack is ideal for audio circuit design and repair technicians.\u003c\/p\u003e\n\n\u003ch3\u003eIC Variant Descriptions\u003c\/h3\u003e\n\n\u003ch4\u003eNJM4560M – Dual High-Slew-Rate Op-Amp\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGBW:\u003c\/strong\u003e 10 MHz | \u003cstrong\u003eSlew Rate:\u003c\/strong\u003e 4 V\/μs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply:\u003c\/strong\u003e ±2V – ±18V\u003c\/li\u003e\n  \u003cli\u003eGeneral-purpose high-speed dual op-amp for audio and signal processing\u003c\/li\u003e\n  \u003cli\u003eUse: Audio preamplifiers, active filters, signal conditioning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eNJM4562 – High-Performance Dual Op-Amp\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGBW:\u003c\/strong\u003e 10 MHz | \u003cstrong\u003eSlew Rate:\u003c\/strong\u003e 6 V\/μs | \u003cstrong\u003eNoise:\u003c\/strong\u003e 8nV\/√Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply:\u003c\/strong\u003e ±2V – ±18V\u003c\/li\u003e\n  \u003cli\u003eLow-noise, high-speed – upgrade from NE5532 in many applications\u003c\/li\u003e\n  \u003cli\u003eUse: High-quality audio preamplifiers, phono stages, DAC output buffers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eNJM4565 – Dual Op-Amp for Audio\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGBW:\u003c\/strong\u003e 10 MHz | \u003cstrong\u003eSlew Rate:\u003c\/strong\u003e 5 V\/μs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply:\u003c\/strong\u003e ±2V – ±18V\u003c\/li\u003e\n  \u003cli\u003eOptimized for audio frequency response and low distortion\u003c\/li\u003e\n  \u003cli\u003eUse: Audio mixing, equalizer circuits, headphone amplifiers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eNJM4580 – Dual Op-Amp (Most Popular JRC Audio IC)\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGBW:\u003c\/strong\u003e 15 MHz | \u003cstrong\u003eSlew Rate:\u003c\/strong\u003e 5 V\/μs | \u003cstrong\u003eNoise:\u003c\/strong\u003e 8nV\/√Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply:\u003c\/strong\u003e ±2V – ±18V\u003c\/li\u003e\n  \u003cli\u003eThe most widely used JRC audio op-amp – found in countless CD players, DACs, and audio equipment\u003c\/li\u003e\n  \u003cli\u003eUse: CD player output stage, DAC I\/V conversion, headphone amplifier, audio preamplifier\u003c\/li\u003e\n  \u003cli\u003ePopular upgrade\/replacement for NE5532 and RC4558 in audio equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eNJM4585 – High-Output-Current Dual Op-Amp\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGBW:\u003c\/strong\u003e 15 MHz | \u003cstrong\u003eSlew Rate:\u003c\/strong\u003e 10 V\/μs | \u003cstrong\u003eOutput Current:\u003c\/strong\u003e ±70mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply:\u003c\/strong\u003e ±2V – ±18V\u003c\/li\u003e\n  \u003cli\u003eHigh output current for direct headphone driving without buffer stage\u003c\/li\u003e\n  \u003cli\u003eUse: Headphone amplifiers, line drivers, high-current audio output stages\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCD \/ DVD player repair:\u003c\/strong\u003e Output stage and servo op-amp replacement\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDAC output buffer:\u003c\/strong\u003e I\/V conversion and output buffering for R-2R and delta-sigma DACs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeadphone amplifiers:\u003c\/strong\u003e High-quality portable and desktop headphone amp circuits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAudio preamplifiers:\u003c\/strong\u003e Microphone, phono, and line-level preamplifier stages\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMixing consoles:\u003c\/strong\u003e Channel strip amplifier and summing stages\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActive crossovers:\u003c\/strong\u003e High-quality filter stages for speaker systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e3 × NJM4560M \/ NJM4562 \/ NJM4565 \/ NJM4580 \/ NJM4585 SOP-8 dual audio op-amp ICs (select variant)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eJRC's finest dual audio op-amps in SOP-8 – the NJM4580 and its siblings are the go-to ICs for CD player repair, DAC output buffering, and high-quality audio preamplifier design.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"NJM4560M","offer_id":46985505276139,"sku":"14:1202#NJM4560M","price":8.12,"currency_code":"USD","in_stock":true},{"title":"NJM5534MD","offer_id":46985505308907,"sku":"14:94#NJM5534MD","price":23.92,"currency_code":"USD","in_stock":true},{"title":"NJM4585M","offer_id":46985505341675,"sku":"14:201659813#NJM4585M","price":16.68,"currency_code":"USD","in_stock":true},{"title":"NJM7660M","offer_id":46985505374443,"sku":"14:175#NJM7660M","price":8.2,"currency_code":"USD","in_stock":true},{"title":"NJM5532MD","offer_id":46985505407211,"sku":"14:29#NJM5532MD","price":32.24,"currency_code":"USD","in_stock":true},{"title":"NJM5532M","offer_id":46985505439979,"sku":"14:10#NJM5532M","price":9.76,"currency_code":"USD","in_stock":true},{"title":"NJM4565M","offer_id":46985505472747,"sku":"14:351074#NJM4565M","price":7.96,"currency_code":"USD","in_stock":true},{"title":"NJM4562M","offer_id":46985505505515,"sku":"14:350852#NJM4562M","price":14.36,"currency_code":"USD","in_stock":true},{"title":"NJM7002M","offer_id":46985505538283,"sku":"14:173#NJM7002M","price":9.76,"currency_code":"USD","in_stock":true},{"title":"NJM4580M(D)","offer_id":46985505571051,"sku":"14:4044226#NJM4580M(D)","price":7.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/njm4560m-4562-4565-4580-4585-smd-sop8-op-amp-ics.webp?v=1761279554"},{"product_id":"5pcs-lm324-lm324n-quad-operational-amplifier-ic-in-line-14-pin-dip14","title":"5PCS LM324 \/ LM324N Quad Operational Amplifier IC In-line 14-Pin DIP14","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eApplication\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDissipation Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003ePackage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eDIP\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eLogic ICs\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv\u003e\n \u003cp\u003e\u003cimg style=\"width:800px\" width=\"800px\" src=\"https:\/\/ae01.alicdn.com\/kf\/S0e21b31a354d4289bbadaf8a3b46d5b4o.jpg\" slate-data-type=\"image\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/Sfbd3ccf65bab493eb505901b18061eb9L.jpg\"\u003e\u003c\/p\u003e\n \u003cp\u003e\u003cimg style=\"width:800px\" width=\"800px\" src=\"https:\/\/ae01.alicdn.com\/kf\/S4773dcc652a4420b89fc2d6ee201354eA.jpg\" slate-data-type=\"image\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/S9c60ce1f513343c19bb4de021bf7c2abn.jpg\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\u003c\/div\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46985524412651,"sku":"\u003cnone\u003e","price":6.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/lm324-quad-operational-amplifier-dip14.webp?v=1761275266"},{"product_id":"10pcs-tl-series-low-power-operational-amplifier-ics-dip-8-tl061-tl062-tl071-tl072-tl081-tl082","title":"10PCS TL Series Low-Power Operational Amplifier ICs DIP-8 (TL061\/TL062\/TL071\/TL072\/TL081\/TL082)","description":"\u003ch2\u003eTL Series Low-Power JFET Op-Amp ICs — DIP-8, 10-Pack (TL061 \/ TL062 \/ TL071 \/ TL072 \/ TL081 \/ TL082)\u003c\/h2\u003e\n\n\u003cp\u003eA 10-piece pack of Texas Instruments TL-series JFET-input operational amplifier ICs in DIP-8 package. The TL series (TL061, TL062, TL071, TL072, TL081, TL082) are industry-standard low-power, low-noise op-amps with JFET input stages, offering high input impedance, low input bias current, and wide supply voltage range (3V–18V single supply or ±1.5V–18V dual supply). Widely used in audio preamplifiers, active filters, signal conditioning, and instrumentation circuits.\u003c\/p\u003e\n\n\u003ch3\u003eModel Comparison Table\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChannels\u003c\/th\u003e\n\u003cth\u003eGBW (typ)\u003c\/th\u003e\n\u003cth\u003eSlew Rate\u003c\/th\u003e\n\u003cth\u003eIq (typ)\u003c\/th\u003e\n\u003cth\u003eKey Feature\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTL061\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1MHz\u003c\/td\u003e\n\u003ctd\u003e3.5V\/µs\u003c\/td\u003e\n\u003ctd\u003e200µA\u003c\/td\u003e\n\u003ctd\u003eUltra-low power single\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTL062\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e1MHz\u003c\/td\u003e\n\u003ctd\u003e3.5V\/µs\u003c\/td\u003e\n\u003ctd\u003e200µA\/ch\u003c\/td\u003e\n\u003ctd\u003eUltra-low power dual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTL071\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e3MHz\u003c\/td\u003e\n\u003ctd\u003e13V\/µs\u003c\/td\u003e\n\u003ctd\u003e1.4mA\u003c\/td\u003e\n\u003ctd\u003eLow-noise single, audio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTL072\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e3MHz\u003c\/td\u003e\n\u003ctd\u003e13V\/µs\u003c\/td\u003e\n\u003ctd\u003e1.4mA\/ch\u003c\/td\u003e\n\u003ctd\u003eLow-noise dual, audio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTL081\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e3MHz\u003c\/td\u003e\n\u003ctd\u003e13V\/µs\u003c\/td\u003e\n\u003ctd\u003e1.4mA\u003c\/td\u003e\n\u003ctd\u003eGeneral purpose single\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTL082\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e3MHz\u003c\/td\u003e\n\u003ctd\u003e13V\/µs\u003c\/td\u003e\n\u003ctd\u003e1.4mA\/ch\u003c\/td\u003e\n\u003ctd\u003eGeneral purpose dual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCommon Electrical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Stage\u003c\/td\u003e\n\u003ctd\u003eJFET (J-FET input, high impedance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage (dual)\u003c\/td\u003e\n\u003ctd\u003e±1.5V to ±18V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage (single)\u003c\/td\u003e\n\u003ctd\u003e3V to 36V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Bias Current\u003c\/td\u003e\n\u003ctd\u003e30pA (typical) — extremely low\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Offset Voltage\u003c\/td\u003e\n\u003ctd\u003e3mV (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e10¹²Ω (JFET gate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Short-Circuit Protected\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eDIP-8 (through-hole, 2.54mm pitch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e−40°C to +85°C (commercial) \/ −55°C to +125°C (military)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Preamplifiers:\u003c\/strong\u003e TL071\/TL072 are the industry standard for low-noise audio preamp stages in guitar pedals, mixing consoles, and microphone preamplifiers. The low noise (18nV\/√Hz) and high slew rate (13V\/µs) make them ideal for audio bandwidth applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Filters:\u003c\/strong\u003e Sallen-Key, multiple feedback (MFB), and state-variable filter topologies for audio crossovers, anti-aliasing filters, and signal conditioning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstrumentation \u0026amp; Sensor Amplifiers:\u003c\/strong\u003e High-impedance JFET input is ideal for amplifying signals from piezoelectric sensors, pH electrodes, and photodiodes without loading the source\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Followers \u0026amp; Buffers:\u003c\/strong\u003e Unity-gain buffer stages for impedance matching between high-impedance sources and low-impedance loads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComparators (non-precision):\u003c\/strong\u003e Window comparator and threshold detection circuits (note: dedicated comparators like LM393 are preferred for high-speed comparator applications)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOscillators \u0026amp; Function Generators:\u003c\/strong\u003e Wien bridge oscillators, triangle\/square wave generators, and VCO circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSelection Guide\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeed lowest power?\u003c\/strong\u003e → TL061 (single) or TL062 (dual) — 200µA quiescent current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeed lowest noise for audio?\u003c\/strong\u003e → TL071 (single) or TL072 (dual) — 18nV\/√Hz input noise\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral purpose?\u003c\/strong\u003e → TL081 (single) or TL082 (dual) — same performance as TL071\/72 with slightly relaxed specs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual supply (±15V)?\u003c\/strong\u003e → All models support ±15V dual supply\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle supply (5V–12V)?\u003c\/strong\u003e → All models support single supply, but output swing is limited — not rail-to-rail\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between TL071 and TL081?\u003c\/strong\u003e\u003cbr\u003eA: The TL071 and TL081 have nearly identical electrical specifications. The TL071 has a slightly tighter input offset voltage specification (3mV vs 6mV typical) and is marketed as the \"low-noise\" variant. For most applications, they are interchangeable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the TL072 replace an NE5532 in an audio circuit?\u003c\/strong\u003e\u003cbr\u003eA: The TL072 and NE5532 are both popular audio op-amps, but the NE5532 has lower noise (5nV\/√Hz vs 18nV\/√Hz) and higher output drive capability. The TL072 is suitable for line-level audio; for microphone preamp stages, the NE5532 is preferred.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are these ICs compatible with 5V single-supply Arduino circuits?\u003c\/strong\u003e\u003cbr\u003eA: Yes, but the TL series is not rail-to-rail. On a 5V single supply, the output typically swings from ~1.5V to ~3.5V. For rail-to-rail output on 5V, use an MCP6002 or LM358 instead.\u003c\/p\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e10 × TL-series op-amp IC DIP-8 (model as selected: TL061 \/ TL062 \/ TL071 \/ TL072 \/ TL081 \/ TL082)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"TL082","offer_id":46985536307435,"sku":"14:10#TL082","price":10.8,"currency_code":"USD","in_stock":true},{"title":"TL061","offer_id":46985536340203,"sku":"14:1202#TL061","price":11.4,"currency_code":"USD","in_stock":true},{"title":"TL071","offer_id":46985536372971,"sku":"14:351074#TL071","price":10.68,"currency_code":"USD","in_stock":true},{"title":"TL062","offer_id":46985536405739,"sku":"14:350852#TL062","price":11.08,"currency_code":"USD","in_stock":true},{"title":"TL081","offer_id":46985536438507,"sku":"14:201659813#TL081","price":10.2,"currency_code":"USD","in_stock":true},{"title":"TL072","offer_id":46985536471275,"sku":"14:4044226#TL072","price":10.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/tl-series-operational-amplifier-ics-dip8_2.webp?v=1761202105"},{"product_id":"2pcs-mcp-series-sop-8-ics-for-operational-amplifiers-dac-and-adc-applications","title":"2PCS MCP Series SOP-8 ICs for Operational Amplifiers, DAC, and ADC Applications","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eApplication\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003estandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDissipation Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003estandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003estandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003ePackage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSOP\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003estandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eLogic ICs\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv\u003e\n \u003cp\u003e\u003cimg style=\"width:800px\" width=\"800px\" src=\"https:\/\/ae01.alicdn.com\/kf\/S0e21b31a354d4289bbadaf8a3b46d5b4o.jpg\" slate-data-type=\"image\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/Sfbd3ccf65bab493eb505901b18061eb9L.jpg\"\u003e\u003c\/p\u003e\n \u003cp\u003e\u003cimg style=\"width:800px\" width=\"800px\" src=\"https:\/\/ae01.alicdn.com\/kf\/S4773dcc652a4420b89fc2d6ee201354eA.jpg\" slate-data-type=\"image\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/S9c60ce1f513343c19bb4de021bf7c2abn.jpg\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e","brand":"Keszoox","offers":[{"title":"MCP6041","offer_id":46985536569579,"sku":"14:4044226#MCP6041","price":22.28,"currency_code":"USD","in_stock":true},{"title":"MCP2021","offer_id":46985536602347,"sku":"14:1202#MCP2021","price":12.32,"currency_code":"USD","in_stock":true},{"title":"MCP3426A0","offer_id":46985536635115,"sku":"14:350852#MCP3426A0","price":84.76,"currency_code":"USD","in_stock":true},{"title":"MCP6072","offer_id":46985536667883,"sku":"14:201659813#MCP6072","price":7.28,"currency_code":"USD","in_stock":true},{"title":"MCP6N11","offer_id":46985536700651,"sku":"14:10#MCP6N11","price":20.24,"currency_code":"USD","in_stock":true},{"title":"MCP41010","offer_id":46985536733419,"sku":"14:351074#MCP41010","price":20.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/mcp-series-sop8-ics-opamp-dac-adc.webp?v=1761202057"},{"product_id":"5pcs-tl-series-low-power-operational-amplifier-ics-dip-8-tl061-tl062-tl071-tl072-tl081-tl082","title":"5PCS TL Series Low-Power Operational Amplifier ICs DIP-8 (TL061\/TL062\/TL071\/TL072\/TL081\/TL082)","description":"\u003ch2\u003eTL061 \/ TL062 \/ TL071 \/ TL072 \/ TL081 \/ TL082 — JFET-Input Op-Amp DIP-8 ICs, 5 Pieces\u003c\/h2\u003e\n\n\u003cp\u003eThe TL-series operational amplifiers from Texas Instruments are among the most widely used JFET-input op-amps in analog electronics, prized for their high input impedance, low input bias current, and excellent AC performance. The JFET input stage eliminates the input bias current problems of bipolar op-amps, making TL-series ICs ideal for high-impedance sensor interfaces, active filters, audio preamplifiers, and precision signal conditioning circuits.\u003c\/p\u003e\n\n\u003cp\u003eAll six variants share the same DIP-8 pinout and are pin-compatible within their sub-families (single\/dual). Select the specific variant from the dropdown. 5 pieces per pack.\u003c\/p\u003e\n\n\u003ch3\u003eIC Selection Guide\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTL061 — Single Ultra-Low Power JFET Op-Amp:\u003c\/strong\u003e Supply current ~200µA (vs. ~1.4mA for TL071). GBW ~1MHz. Ideal for battery-powered circuits where quiescent current is critical. Single op-amp in DIP-8. Trade-off: lower slew rate (3.5V\/µs) and higher noise than TL071.\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eTL062 — Dual Ultra-Low Power JFET Op-Amp:\u003c\/strong\u003e Dual version of TL061 in DIP-8. Two independent op-amps sharing one package. Supply current ~400µA total. For battery-powered dual-channel applications (stereo audio, differential sensing).\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eTL071 — Single Low-Noise JFET Op-Amp:\u003c\/strong\u003e The most popular single JFET op-amp. GBW = 3MHz, slew rate = 13V\/µs, input noise voltage = 18nV\/√Hz. Supply ±2.25V to ±18V. Excellent for audio preamplifiers, active filters, and instrumentation front-ends. Direct replacement for µA741 with superior performance.\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eTL072 — Dual Low-Noise JFET Op-Amp:\u003c\/strong\u003e Dual version of TL071 in DIP-8. The industry standard for dual-channel audio circuits — used in virtually every analog synthesizer, guitar effects pedal, and audio mixer ever designed. GBW = 3MHz, slew rate = 13V\/µs. Pin-compatible with NE5532 (bipolar) but with higher input impedance.\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eTL081 — Single General-Purpose JFET Op-Amp:\u003c\/strong\u003e Similar to TL071 but with slightly higher noise and lower cost. GBW = 3MHz, slew rate = 13V\/µs. Supply ±2.25V to ±18V. Suitable for general-purpose amplification, comparators, and non-critical audio applications.\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eTL082 — Dual General-Purpose JFET Op-Amp:\u003c\/strong\u003e Dual version of TL081. Two independent op-amps in DIP-8. Cost-effective choice for dual-channel circuits where the lower noise of TL072 is not required. Widely used in power supply error amplifiers, oscillators, and waveform generators.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Specifications Comparison\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTL061\/062:\u003c\/strong\u003e VCC = ±2.25–18V, Icc ≈ 200µA\/amp, GBW ≈ 1MHz, SR = 3.5V\/µs, Vn = 42nV\/√Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTL071\/081:\u003c\/strong\u003e VCC = ±2.25–18V, Icc ≈ 1.4mA, GBW = 3MHz, SR = 13V\/µs, Vn = 18nV\/√Hz (TL071)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTL072\/082:\u003c\/strong\u003e Same as TL071\/081 but dual package; Icc ≈ 2.8mA total\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Bias Current:\u003c\/strong\u003e ~65pA (JFET input — 1000× lower than bipolar op-amps)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Offset Voltage:\u003c\/strong\u003e 3–15mV typical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCMRR:\u003c\/strong\u003e 86dB typical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Short-Circuit Protected:\u003c\/strong\u003e Yes (internal current limiting)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e DIP-8 (through-hole, 2.54mm pitch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to +70°C (C-grade) \/ −40°C to +85°C (I-grade)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eStandard DIP-8 Pinout (Single Op-Amp: TL061\/071\/081)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 1 — OFFSET N1:\u003c\/strong\u003e Offset null (connect 10kΩ pot between pins 1 and 5, wiper to V−)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 2 — IN−:\u003c\/strong\u003e Inverting input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 3 — IN+:\u003c\/strong\u003e Non-inverting input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 4 — V−:\u003c\/strong\u003e Negative supply (or GND for single-supply)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 5 — OFFSET N2:\u003c\/strong\u003e Offset null\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 6 — OUT:\u003c\/strong\u003e Output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 7 — V+:\u003c\/strong\u003e Positive supply\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 8 — N\/C:\u003c\/strong\u003e No connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eStandard DIP-8 Pinout (Dual Op-Amp: TL062\/072\/082)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 1 — OUT A:\u003c\/strong\u003e Output, amplifier A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 2 — IN− A:\u003c\/strong\u003e Inverting input, amplifier A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 3 — IN+ A:\u003c\/strong\u003e Non-inverting input, amplifier A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 4 — V−:\u003c\/strong\u003e Negative supply\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 5 — IN+ B:\u003c\/strong\u003e Non-inverting input, amplifier B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 6 — IN− B:\u003c\/strong\u003e Inverting input, amplifier B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 7 — OUT B:\u003c\/strong\u003e Output, amplifier B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin 8 — V+:\u003c\/strong\u003e Positive supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSingle-Supply Operation\u003c\/h3\u003e\n\u003cp\u003eTL-series op-amps are designed for dual-supply (±V) operation but can work from a single supply with proper biasing. Connect V− (pin 4) to GND, V+ (pin 7\/8) to supply (5–36V). Bias the non-inverting input to mid-supply (V+\/2) using a resistor divider. AC-couple input and output signals. Minimum single-supply voltage: 4.5V (for ±2.25V equivalent).\u003c\/p\u003e\n\n\u003ch3\u003eDecoupling Best Practices\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePlace 100nF ceramic capacitor between V+ and GND, and 100nF between V− and GND, as close to the IC supply pins as possible\u003c\/li\u003e\n\u003cli\u003eAdd 10µF electrolytic in parallel for low-frequency decoupling in audio circuits\u003c\/li\u003e\n\u003cli\u003eKeep feedback resistors short and close to the IC to minimize parasitic capacitance and oscillation risk\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTL071\/072:\u003c\/strong\u003e Audio preamplifier, active crossover filter, guitar effects pedal (overdrive, EQ, chorus), analog synthesizer VCF\/VCA, instrumentation amplifier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTL061\/062:\u003c\/strong\u003e Battery-powered sensor interface, portable audio device, low-power data acquisition front-end\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTL081\/082:\u003c\/strong\u003e General-purpose amplifier, comparator (with hysteresis), waveform generator, power supply error amplifier, oscillator\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll variants:\u003c\/strong\u003e Active low-pass\/high-pass\/band-pass filters (Sallen-Key, MFB topology), integrators, differentiators, voltage followers (unity gain buffer), Schmitt triggers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e5 × selected TL-series DIP-8 op-amp IC (variant as chosen)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"TL071","offer_id":46985538076907,"sku":"14:496#TL071","price":6.8,"currency_code":"USD","in_stock":true},{"title":"TL072","offer_id":46985538109675,"sku":"14:1052#TL072","price":6.88,"currency_code":"USD","in_stock":true},{"title":"TL081","offer_id":46985538142443,"sku":"14:771#TL081","price":6.64,"currency_code":"USD","in_stock":true},{"title":"TL082","offer_id":46985538175211,"sku":"14:1254#TL082","price":6.6,"currency_code":"USD","in_stock":true},{"title":"TL061","offer_id":46985538207979,"sku":"14:193#TL061","price":6.8,"currency_code":"USD","in_stock":true},{"title":"TL062","offer_id":46985538240747,"sku":"14:366#TL062","price":6.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/tl-series-operational-amplifier-ics-dip8.webp?v=1761201276"},{"product_id":"sg3525-lm358-pwm-inverter-driver-and-waveform-generator-board-12v-24v","title":"SG3525 LM358 PWM Inverter Driver and Waveform Generator Board 12V-24V","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eApplication\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003estandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDissipation Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003estandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003estandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003estandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eModule\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv\u003e\n Warm prompt: Dear buyer, Our cheapest transportation services Economic category logistics (SunYou Economic Air Mail ,China Post Ordinary Small Packet Plus ) can be traced only befor it arrive your country,please choose Standard category logistics if you want a full tracking info.\n\u003c\/div\u003e\n\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003e\n \u003cdiv\u003e\n  SG3525 LM358 Inverter Driver Board Mixer Preamp Drive Board 12V-24V\n \u003c\/div\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cimg width=\"600\" src=\"https:\/\/ae01.alicdn.com\/kf\/S48e6bc3432ce4a19a2c49807f345c40dX.jpg\" slate-data-type=\"image\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/Sa42ba2bfb485424ab65927e9bf130d5fU.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg width=\"600\" src=\"https:\/\/ae01.alicdn.com\/kf\/S1b23ca825a384d81983681084b81a5a4h.jpg\" slate-data-type=\"image\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/S0fb7a1eb8ef048108fd760d89f3cd172i.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg width=\"600\" src=\"https:\/\/ae01.alicdn.com\/kf\/S3e9e7bc12a004a108ce83de18852db59I.jpg\" slate-data-type=\"image\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/Sdfcbec5d5a694a2e9a74e5b0e126ec99p.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width:600px\" width=\"600px\" src=\"https:\/\/ae01.alicdn.com\/kf\/S711f33a94b6b4340b41d2ade82689e08K.jpg\" slate-data-type=\"image\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/Sfa70bc13b2ff4322a8c5ff17d6bd01c1d.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width:600px\" width=\"600px\" src=\"https:\/\/ae01.alicdn.com\/kf\/S7c8ce06c2f8f4cb792d298bfee1bd55bV.jpg\" slate-data-type=\"image\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/S9c8c9fd246af4865bfa4dccdb39663b4Q.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width:600px\" width=\"600px\" src=\"https:\/\/ae01.alicdn.com\/kf\/S4729d32459f44700a93743447a269a515.jpg\" slate-data-type=\"image\" data-src=\"https:\/\/ae01.alicdn.com\/kf\/Sca1b6b2225eb45d29277e9f2f7a7caa5Z.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e","brand":"Keszoox","offers":[{"title":"1","offer_id":46985540075755,"sku":"14:350852#1","price":9.08,"currency_code":"USD","in_stock":true},{"title":"2","offer_id":46985540108523,"sku":"14:10#2","price":8.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/sg3525-lm358-pwm-inverter-driver-board.webp?v=1761200850"},{"product_id":"5pcs-tl074cn-low-power-quad-operational-amplifier-chip-dip-14","title":"5PCS TL074CN Low-Power Quad Operational Amplifier Chip DIP-14","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eKeszoox\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDissipation Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStandard\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eLogic ICs\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\u003cdiv\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sb56a2cff5ddb47909178c058b10b860e9.jpg\" style=\"width:800px;\" data-src=\"D:\\全球交易助手\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\3c9fe9281e234c98b2c6fec0f995403b\\dImgNew\\DImgNew2_7ig9hf5t.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S0e21b31a354d4289bbadaf8a3b46d5b4o.jpg\" style=\"width:800px;\" data-src=\"D:\\全球交易助手\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\3c9fe9281e234c98b2c6fec0f995403b\\dImgNew\\DImgNew3_7ig9hf5t.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S4773dcc652a4420b89fc2d6ee201354eA.jpg\" style=\"width:800px;\" data-src=\"D:\\全球交易助手\\Platforms\\AliChoice\\Data\\AliChoice-cn1093225002neeae-6000948202\\Images\\3c9fe9281e234c98b2c6fec0f995403b\\dImgNew\\DImgNew4_7ig9hf5t.jpg\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46985544204523,"sku":"\u003cnone\u003e","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/tl074cn-low-power-op-amp-dip14.webp?v=1761198630"},{"product_id":"ua741-lm324-lm393-lm339-ne555-dip-analog-ic-starter-set-10pcs","title":"UA741 \/ LM324 \/ LM393 \/ LM339 \/ NE555 DIP Analog IC Starter Set – Pack of 10","description":"\u003ch2\u003eUA741 \/ LM324 \/ LM393 \/ LM339 \/ NE555 DIP Analog IC Starter Set – Pack of 10\u003c\/h2\u003e\n\n\u003cp\u003eThis \u003cstrong\u003eanalog IC starter set\u003c\/strong\u003e covers the five most essential general-purpose analog ICs in electronics – the building blocks that every electronics student, hobbyist, and engineer should have on hand. From the original op-amp (UA741) to the world's most popular timer (NE555), these ICs appear in virtually every analog electronics textbook and are the foundation of countless circuit designs. This 10-piece DIP pack is the ideal starter kit for electronics education and breadboard prototyping.\u003c\/p\u003e\n\n\u003ch3\u003eIncluded IC Descriptions\u003c\/h3\u003e\n\n\u003ch4\u003eUA741 (DIP-8) – Single General-Purpose Op-Amp\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThe original op-amp – 1MHz GBW, ±15V dual supply\u003c\/li\u003e\n  \u003cli\u003eUse: Inverting\/non-inverting amplifier, integrator, differentiator, summing amplifier\u003c\/li\u003e\n  \u003cli\u003eBest for: Electronics education and legacy circuit repair\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eLM324N (DIP-14) – Quad Single-Supply Op-Amp\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4 op-amps, single supply 3V–32V, input range to GND\u003c\/li\u003e\n  \u003cli\u003eUse: Multi-channel signal conditioning, comparators, active filters, battery circuits\u003c\/li\u003e\n  \u003cli\u003eBest for: Battery-powered analog circuits and sensor amplification\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eLM393N (DIP-8) – Dual Voltage Comparator\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e2 comparators, open-collector output, 2V–36V single supply\u003c\/li\u003e\n  \u003cli\u003eUse: Threshold detection, zero-crossing, window comparator, sensor alarms\u003c\/li\u003e\n  \u003cli\u003eBest for: Any voltage comparison application\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eLM339N (DIP-14) – Quad Voltage Comparator\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4 comparators, open-collector output, 2V–36V single supply\u003c\/li\u003e\n  \u003cli\u003eQuad version of LM393 – 4 channels in one DIP-14 package\u003c\/li\u003e\n  \u003cli\u003eUse: Multi-channel threshold detection, battery monitoring, motor control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eNE555 (DIP-8) – Timer IC\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThe world's most popular IC – astable oscillator and monostable timer\u003c\/li\u003e\n  \u003cli\u003e4.5V–16V supply, 200mA output, 0.1Hz–500kHz frequency range\u003c\/li\u003e\n  \u003cli\u003eUse: LED flashers, PWM, tone generators, delay timers, debounce circuits\u003c\/li\u003e\n  \u003cli\u003eBest for: Any timing, oscillator, or PWM application\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy These Five ICs?\u003c\/h3\u003e\n\u003cp\u003eThese five ICs cover the fundamental analog functions: \u003cstrong\u003eamplification\u003c\/strong\u003e (UA741, LM324), \u003cstrong\u003ecomparison\u003c\/strong\u003e (LM393, LM339), and \u003cstrong\u003etiming\u003c\/strong\u003e (NE555). Together they can implement virtually any basic analog circuit – from sensor interfaces to oscillators to power control. They appear in every analog electronics textbook and are the first ICs every electronics student should learn.\u003c\/p\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e10 × DIP analog ICs (select variant: UA741, LM324N, LM393N, LM339N, or NE555)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe five essential analog ICs – op-amps, comparators, and timer in DIP packages for electronics education, breadboard prototyping, and general-purpose analog circuit design.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"5PCS-LM339","offer_id":46991416459499,"sku":"14:4044226#20PCS-LM339","price":7.24,"currency_code":"USD","in_stock":true},{"title":"5PCS-LM393","offer_id":46991416492267,"sku":"14:350852#20PCS-LM393","price":5.2,"currency_code":"USD","in_stock":true},{"title":"5PCS-LM324","offer_id":46991416525035,"sku":"14:201659813#20PCS-LM324","price":7.04,"currency_code":"USD","in_stock":true},{"title":"5PCS-LM358","offer_id":46991416557803,"sku":"14:1202#20PCS-LM358","price":5.24,"currency_code":"USD","in_stock":true},{"title":"5PCS-NE555","offer_id":46991416590571,"sku":"14:351074#20PCS-NE555","price":5.24,"currency_code":"USD","in_stock":true},{"title":"5PCS-UA741CN","offer_id":46991416623339,"sku":"14:10#20PCS-UA741CN","price":7.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/ua741-lm324-lm393-lm339-ne555-ic.webp?v=1761890915"},{"product_id":"lm224-lm224dr-quad-single-supply-op-amp-ic-sop14-5pcs","title":"LM224 \/ LM224DR Quad Single-Supply Op-Amp IC SOP-14 – Pack of 5","description":"\u003ch2\u003eLM224 \/ LM224DR Quad Single-Supply Op-Amp IC – SOP-14, Pack of 5\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eLM224 \/ LM224DR\u003c\/strong\u003e is the SMD surface-mount version of the classic LM324 quad op-amp – four independent single-supply operational amplifiers in a compact SOP-14 package. With single-supply operation from 3V to 32V, input common-mode range extending to ground, and output swing to within millivolts of the negative rail, it's the go-to quad op-amp for battery-powered circuits, sensor signal conditioning, and analog processing in PCB designs. The LM224 is the industrial-temperature version of the LM324 (−40°C to +105°C). This 5-piece SOP-14 pack is ideal for PCB design and production.\u003c\/p\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LM224 \/ LM224DR \/ LM224D (SOP-14 SMD)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e SOP-14 (SMD, 1.27mm pitch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Op-Amps:\u003c\/strong\u003e 4 (quad)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 3V – 32V (single supply) \/ ±1.5V – ±16V (dual supply)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Common-Mode Range:\u003c\/strong\u003e GND to VCC−1.5V (includes ground)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Voltage Swing:\u003c\/strong\u003e 0V to VCC−1.5V (single supply)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGBW:\u003c\/strong\u003e 1 MHz (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlew Rate:\u003c\/strong\u003e 0.5 V\/μs (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Offset Voltage:\u003c\/strong\u003e 2mV (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Current (all 4 amps):\u003c\/strong\u003e 0.8mA (typical at 5V)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e −40°C to +105°C (LM224 industrial)\u003c\/li\u003e\n  \u003cli\u003eShort-circuit protected output\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eLM224 vs LM324 – Temperature Grade\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLM224:\u003c\/strong\u003e Industrial grade – −40°C to +105°C, SOP-14 SMD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLM324N:\u003c\/strong\u003e Commercial grade – 0°C to +70°C, DIP-14 through-hole\u003c\/li\u003e\n  \u003cli\u003eFunctionally identical – same electrical specifications, different temperature range and package\u003c\/li\u003e\n  \u003cli\u003eChoose LM224 for industrial, automotive, or outdoor applications requiring extended temperature range\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensor signal conditioning:\u003c\/strong\u003e 4-channel amplification for temperature, pressure, and current sensors\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComparator arrays:\u003c\/strong\u003e 4 voltage threshold detectors in one package\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActive filters:\u003c\/strong\u003e Multi-stage low-pass, high-pass, and bandpass filter banks\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery-powered circuits:\u003c\/strong\u003e Single-supply analog processing from 3V–5V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial control:\u003c\/strong\u003e Signal conditioning for PLC analog inputs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePCB repair:\u003c\/strong\u003e SMD replacement for failed LM224\/LM324 in consumer and industrial electronics\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e5 × LM224 \/ LM224DR SOP-14 quad single-supply op-amp ICs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFour single-supply op-amps in a compact SOP-14 SMD package – the LM224 is the industrial-grade SMD equivalent of the LM324 for PCB design, repair, and production.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991423701227,"sku":"\u003cnone\u003e","price":5.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/lm224-sop14-operational-amplifier-ic.webp?v=1761889691"},{"product_id":"lm-series-sop8-ic-set-lm358-lm555-lm317-lm393-lm386-lm311-2pcs","title":"LM Series SOP-8 IC Set – LM358 \/ LM555 \/ LM317 \/ LM393 \/ LM386 \/ LM311 and More, Pack of 2","description":"\u003ch2\u003eLM Series SOP-8 IC Set – Pack of 2\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eLM series\u003c\/strong\u003e from Texas Instruments (and compatible manufacturers) represents the most comprehensive family of general-purpose analog ICs ever produced – covering op-amps, comparators, timers, voltage regulators, and audio amplifiers. This SOP-8 IC set covers the most essential LM series devices in surface-mount packages, providing a convenient way to stock multiple commonly needed ICs for PCB repair, prototyping, and production. This 2-piece pack is ideal for repair technicians and engineers who need SMD versions of classic LM series ICs.\u003c\/p\u003e\n\n\u003ch3\u003eAvailable IC Variants\u003c\/h3\u003e\n\n\u003ch4\u003eLM358 (SOP-8) – Dual Single-Supply Op-Amp\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e2 op-amps, single supply 3V–32V, input range to GND\u003c\/li\u003e\n  \u003cli\u003eUse: Sensor amplification, comparators, active filters, battery-powered circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eLM555 (SOP-8) – Timer IC\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eClassic 555 timer in SMD package, astable and monostable modes\u003c\/li\u003e\n  \u003cli\u003eUse: Oscillators, PWM, one-shot timers, LED flashers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eLM317 (SOP-8) – Adjustable Voltage Regulator\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1.25V–37V adjustable output, 1.5A, SMD package\u003c\/li\u003e\n  \u003cli\u003eUse: Adjustable power supply, battery charger, LED driver\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eLM393 (SOP-8) – Dual Voltage Comparator\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e2 comparators, open-collector output, 2V–36V single supply\u003c\/li\u003e\n  \u003cli\u003eUse: Threshold detection, zero-crossing, window comparator\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eLM2904 \/ LM258DR (SOP-8) – Dual Op-Amp (Industrial Grade)\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLM358 equivalent with extended temperature range (−40°C to +85°C)\u003c\/li\u003e\n  \u003cli\u003eUse: Industrial signal conditioning, automotive electronics\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eLM293DR \/ LM2903DR (SOP-8) – Dual Comparator (Industrial)\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLM393 equivalent with extended temperature range\u003c\/li\u003e\n  \u003cli\u003eUse: Industrial comparator applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eLM311 (SOP-8) – Single High-Speed Comparator\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle comparator, faster than LM393, strobe input\u003c\/li\u003e\n  \u003cli\u003eUse: High-speed threshold detection, zero-crossing detection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eLM386 (SOP-8) – Low-Voltage Audio Amplifier\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.25W–1W audio output, 4V–12V supply, 20–200× gain\u003c\/li\u003e\n  \u003cli\u003eUse: Portable speaker driver, intercom, Arduino audio output\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eLM4871MX (SOP-8) – 3W BTL Audio Amplifier\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3W BTL mono audio amplifier, 2.2V–5.5V supply\u003c\/li\u003e\n  \u003cli\u003eUse: Portable speaker, toy audio, USB-powered speaker\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eLM2675MX-ADJ (SOP-8) – Adjustable Step-Down Regulator\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSimple switcher buck converter, 1A, adjustable output\u003c\/li\u003e\n  \u003cli\u003eUse: Efficient DC-DC step-down from 8V–40V input\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eLM7171 (SOP-8) – High-Speed Op-Amp\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e200MHz GBW, 4100 V\/μs slew rate – high-speed video amplifier\u003c\/li\u003e\n  \u003cli\u003eUse: Video signal amplification, high-speed signal processing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2 × LM series SOP-8 ICs (select variant from available options)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe essential LM series in SMD – op-amps, comparators, timers, regulators, and audio amplifiers in SOP-8 packages for PCB repair, prototyping, and production.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"LM2903DR","offer_id":46991438053611,"sku":"14:496#LM2903DR","price":6.76,"currency_code":"USD","in_stock":true},{"title":"LM4871MX","offer_id":46991438086379,"sku":"14:366#LM4871MX","price":7.56,"currency_code":"USD","in_stock":true},{"title":"LM2675M-ADJ","offer_id":46991438119147,"sku":"14:1202#LM2675M-ADJ","price":35.0,"currency_code":"USD","in_stock":true},{"title":"LM358","offer_id":46991438151915,"sku":"14:350852#LM358","price":6.72,"currency_code":"USD","in_stock":true},{"title":"LM2904","offer_id":46991438184683,"sku":"14:29#LM2904","price":6.68,"currency_code":"USD","in_stock":true},{"title":"LM393","offer_id":46991438217451,"sku":"14:10#LM393","price":6.76,"currency_code":"USD","in_stock":true},{"title":"LM311","offer_id":46991438250219,"sku":"14:173#LM311","price":8.04,"currency_code":"USD","in_stock":true},{"title":"LM293DR","offer_id":46991438282987,"sku":"14:94#LM293DR","price":6.72,"currency_code":"USD","in_stock":true},{"title":"LM386","offer_id":46991438315755,"sku":"14:193#LM386","price":6.76,"currency_code":"USD","in_stock":true},{"title":"LM258DR","offer_id":46991438348523,"sku":"14:175#LM258DR","price":6.68,"currency_code":"USD","in_stock":true},{"title":"LM317","offer_id":46991438381291,"sku":"14:201659813#LM317","price":6.76,"currency_code":"USD","in_stock":true},{"title":"LM555","offer_id":46991438414059,"sku":"14:351074#LM555","price":8.32,"currency_code":"USD","in_stock":true},{"title":"LM7171","offer_id":46991438446827,"sku":"14:4044226#LM7171","price":12.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/lm-series-sop8-ic-chip-set-lm2675mx-adj-lm358-lm555-lm7171-lm317-lm393-lm2904-lm293dr-lm311-lm258dr-lm386-lm4871mx-lm2903dr.webp?v=1761879452"},{"product_id":"xh-m164-ne5532-stereo-preamp-tone-board-4-channel-bass-mid-treble","title":"XH-M164 NE5532 Stereo Preamp Tone Board — 4-Channel, Adjustable Bass\/Mid\/Treble, -40°C to 80°C","description":"\u003ch2\u003eXH-M164 NE5532 Stereo Preamp Tone Board — 4-Channel, Adjustable Bass\/Mid\/Treble\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eXH-M164 tone control board\u003c\/strong\u003e uses the NE5532 dual low-noise op-amp to provide a 4-channel stereo preamplifier with independent bass, midrange, and treble adjustment — the classic Baxandall tone control topology used in hi-fi amplifiers. Connects between an audio source and power amplifier to shape the frequency response to taste. Operating temperature -40°C to +80°C.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOp-Amp IC:\u003c\/strong\u003e NE5532 (dual low-noise, high-current)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChannels:\u003c\/strong\u003e 4 (stereo, with 2 inputs selectable)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTone Controls:\u003c\/strong\u003e Bass, midrange, treble (independent potentiometers)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTopology:\u003c\/strong\u003e Baxandall active tone control\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -40°C to +80°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSignal Path:\u003c\/strong\u003e Input → tone control → preamplifier output\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNE5532 — Why It’s Used in Audio\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUltra-low noise: 5nV\/√Hz input noise voltage\u003c\/li\u003e\n  \u003cli\u003eHigh slew rate: 9V\/μs — handles audio transients cleanly\u003c\/li\u003e\n  \u003cli\u003eHigh output current: ±38mA — drives low-impedance loads\u003c\/li\u003e\n  \u003cli\u003eIndustry standard for audio preamplifier and tone control circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDIY hi-fi amplifier tone control stage\u003c\/li\u003e\n  \u003cli\u003eAudio preamplifier with EQ adjustment\u003c\/li\u003e\n  \u003cli\u003eHome theater bass\/treble control\u003c\/li\u003e\n  \u003cli\u003eGuitar amplifier tone stack\u003c\/li\u003e\n  \u003cli\u003eMixer channel EQ module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eXH-M164 NE5532 stereo preamp tone board — 4-channel, adjustable bass\/mid\/treble for DIY hi-fi amplifier tone control and audio preamplifier projects.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991441953003,"sku":"\u003cnone\u003e","price":19.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/xh-m164-ne5532-4ch-stereo-preamp-tone-board.webp?v=1761807457"},{"product_id":"as358m-as358mtr-e1-dual-op-amp-ic-sop8-lm358-compatible-5pcs","title":"AS358M \/ AS358MTR-E1 Dual Op-Amp IC SOP-8 – Pack of 5 (LM358 Compatible)","description":"\u003ch2\u003eAS358M \/ AS358MTR-E1 Dual Op-Amp IC – SOP-8, Pack of 5\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eAS358M \/ AS358MTR-E1\u003c\/strong\u003e is a dual general-purpose operational amplifier in a compact SOP-8 surface-mount package, functionally compatible with the industry-standard LM358. With single-supply operation from 3V to 32V, input common-mode range extending to ground, and output swing to within millivolts of the negative rail, it's the SMD equivalent of the LM358 – ideal for battery-powered circuits, sensor signal conditioning, and analog processing in PCB designs. This 5-piece SOP-8 pack is ideal for PCB repair and production.\u003c\/p\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e AS358M \/ AS358MTR-E1 (LM358 pin-compatible)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e SOP-8 (SMD, 1.27mm pitch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Op-Amps:\u003c\/strong\u003e 2 (dual)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 3V – 32V (single supply) \/ ±1.5V – ±16V (dual supply)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Common-Mode Range:\u003c\/strong\u003e GND to VCC−1.5V (includes ground)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Voltage Swing:\u003c\/strong\u003e 0V to VCC−1.5V (single supply)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGBW:\u003c\/strong\u003e 1 MHz (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlew Rate:\u003c\/strong\u003e 0.6 V\/μs (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Offset Voltage:\u003c\/strong\u003e 2mV (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Bias Current:\u003c\/strong\u003e 45nA (typical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Current:\u003c\/strong\u003e 0.5mA (typical, both amplifiers)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e −40°C to +85°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAS358M vs LM358 – SMD Replacement\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAS358M (SOP-8):\u003c\/strong\u003e SMD surface-mount, same electrical specs as LM358, for PCB production and repair\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLM358N (DIP-8):\u003c\/strong\u003e Through-hole, breadboard and through-hole PCB use\u003c\/li\u003e\n  \u003cli\u003eFunctionally identical – direct SMD replacement for LM358 in PCB designs\u003c\/li\u003e\n  \u003cli\u003eSame pin configuration – no circuit changes required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensor signal conditioning:\u003c\/strong\u003e Amplify and buffer analog sensor outputs for ADC input\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComparator circuits:\u003c\/strong\u003e Voltage threshold detection (use LM393 for dedicated comparator)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActive filters:\u003c\/strong\u003e Low-pass, high-pass, and bandpass filter stages\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery-powered circuits:\u003c\/strong\u003e Single-supply analog processing from 3V–5V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePCB repair:\u003c\/strong\u003e SMD replacement for failed LM358\/AS358 in consumer electronics\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArduino signal conditioning:\u003c\/strong\u003e Amplify sensor signals before ADC input\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e5 × AS358M \/ AS358MTR-E1 SOP-8 dual op-amp ICs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe SMD LM358 equivalent – the AS358M delivers dual single-supply op-amp performance in a compact SOP-8 package for PCB design, repair, and production.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991447359723,"sku":"\u003cnone\u003e","price":9.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/as358m-as358mtr-e1-sop8-high-voltage-logic-ic-chip.webp?v=1761805057"},{"product_id":"tl064-tl074-tl084-quad-jfet-op-amp-dip14-2-25-18v-3mhz-gbw-5pack","title":"TL064 \/ TL074 \/ TL084 Quad JFET Op-Amp IC — DIP-14, ±2.25–18V, 3MHz GBW (5-Pack)","description":"\u003ch2\u003eTL064 \/ TL074 \/ TL084 Quad JFET Op-Amp IC — DIP-14, ±2.25–18V (5-Pack)\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eTL06x\/TL07x\/TL08x series\u003c\/strong\u003e are quad JFET-input operational amplifiers in DIP-14 package — four independent op-amps per IC. The JFET input stage provides ultra-low input bias current (~65pA), making them ideal for high-impedance sensor interfaces, sample-and-hold circuits, and audio applications where bipolar op-amps (like the LM741) would cause excessive loading. Pack of 5 (select variant).\u003c\/p\u003e\n\n\u003ch3\u003eVariant Comparison\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTL064CN (low-power):\u003c\/strong\u003e ~200μA per amp, 1MHz GBW, 3.5V\/μs slew rate — for battery-powered audio and sensor circuits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTL074CN (standard):\u003c\/strong\u003e ~1.4mA per amp, 3MHz GBW, 13V\/μs slew rate — most popular, for audio filters and signal processing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTL084CN (wide-bandwidth):\u003c\/strong\u003e ~1.4mA per amp, 3MHz GBW, 13V\/μs slew rate — equivalent to TL074, different manufacturer designation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e DIP-14 (through-hole, 2.54mm pitch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOp-Amps:\u003c\/strong\u003e 4 independent channels\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Type:\u003c\/strong\u003e JFET (input bias current ~65pA)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e ±2.25V to ±18V (dual supply)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Offset Voltage:\u003c\/strong\u003e 3mV typical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Short-Circuit Protected:\u003c\/strong\u003e Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to +70°C (commercial)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePack Quantity:\u003c\/strong\u003e 5 ICs (20 op-amp channels total)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTL074 vs LM324 vs UA741\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTL074 JFET (this IC):\u003c\/strong\u003e 65pA bias, 3MHz GBW, 13V\/μs — for audio and high-impedance applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLM324:\u003c\/strong\u003e Single supply, 1MHz GBW, 0.5V\/μs, bipolar — for single-supply sensor circuits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUA741:\u003c\/strong\u003e Single amp, 1MHz GBW, 0.5V\/μs, bipolar — classic teaching op-amp only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eActive audio filter (Sallen-Key, MFB topology)\u003c\/li\u003e\n  \u003cli\u003eAudio preamplifier and mixer\u003c\/li\u003e\n  \u003cli\u003eSample-and-hold circuit\u003c\/li\u003e\n  \u003cli\u003eHigh-impedance sensor interface (pH, piezo)\u003c\/li\u003e\n  \u003cli\u003eWaveform generator (Wien bridge oscillator)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eTL064\/TL074\/TL084 quad JFET op-amp, 5-pack — DIP-14, 65pA bias, 3MHz GBW, 13V\/μs for audio filters, signal processing, and high-impedance sensor circuits.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"TL074CN","offer_id":46991449555179,"sku":"14:175#TL074CN","price":8.48,"currency_code":"USD","in_stock":true},{"title":"TL064CN","offer_id":46991449587947,"sku":"14:1202#TL064CN","price":8.48,"currency_code":"USD","in_stock":true},{"title":"TL084CN","offer_id":46991449620715,"sku":"14:691#TL084CN","price":8.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/tl064-tl074-tl084-dip-14-operational-amplifier-ic.webp?v=1761802170"},{"product_id":"ua741-lm741-general-purpose-op-amp-dip8-5-18v-1mhz-gbw-5pack","title":"UA741 \/ LM741 General-Purpose Op-Amp IC — DIP-8, ±5–18V, 1MHz GBW (5-Pack)","description":"\u003ch2\u003eUA741 \/ LM741 General-Purpose Op-Amp — DIP-8, ±5–18V, 1MHz GBW (5-Pack)\u003c\/h2\u003e\u003cp\u003eThe UA741 (also known as LM741) is the classic single-channel general-purpose operational amplifier that has been an electronics education and prototyping staple since the 1960s. In a DIP-8 through-hole package, it operates from ±5V to ±18V dual supply, delivers 1MHz gain-bandwidth product, and includes internal frequency compensation — making it the go-to op-amp for learning amplifier theory, building integrators, differentiators, and comparator circuits.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eDIP-8 (through-hole)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e±5V to ±18V (dual supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain-Bandwidth Product (GBW)\u003c\/td\u003e\n\u003ctd\u003e1MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlew Rate\u003c\/td\u003e\n\u003ctd\u003e0.5 V\/μs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Offset Voltage\u003c\/td\u003e\n\u003ctd\u003e2mV typ., 6mV max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Bias Current\u003c\/td\u003e\n\u003ctd\u003e80nA typ.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpen-Loop Gain\u003c\/td\u003e\n\u003ctd\u003e200V\/mV typ.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Short-Circuit Protection\u003c\/td\u003e\n\u003ctd\u003eYes (internal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e5 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose UA741 \/ LM741?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal compensation\u003c\/strong\u003e — stable at unity gain without external capacitors, unlike older uncompensated op-amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort-circuit protected output\u003c\/strong\u003e — survives accidental output-to-ground shorts during prototyping\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIP-8 breadboard-friendly\u003c\/strong\u003e — plugs directly into standard 2.54mm breadboards and DIP sockets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry-standard pinout\u003c\/strong\u003e — pin-compatible with LM741, μA741, CA741, and TL071 (check datasheet for exact compatibility)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-pack value\u003c\/strong\u003e — enough for lab exercises and multiple circuit builds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible With \/ Common Use Cases\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eArduino analog signal conditioning (non-inverting amplifier before ADC input)\u003c\/li\u003e\n\u003cli\u003eInverting and non-inverting amplifier circuits (electronics lab standard)\u003c\/li\u003e\n\u003cli\u003eIntegrator and differentiator circuits (control systems education)\u003c\/li\u003e\n\u003cli\u003eVoltage comparator (note: dedicated comparators like LM393 are faster for this use)\u003c\/li\u003e\n\u003cli\u003eActive filter design (low-pass, high-pass, band-pass)\u003c\/li\u003e\n\u003cli\u003eSchmitt trigger and hysteresis circuits\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Can the LM741 run on a single supply (e.g., 5V or 12V)?\u003c\/strong\u003e\u003cbr\u003eA: The LM741 is designed for dual supply (±V). Single-supply operation is possible but the output swing is limited and the input common-mode range is restricted. For single-supply applications, use a rail-to-rail op-amp like the LM358 or MCP6002 instead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the difference between UA741 and LM741?\u003c\/strong\u003e\u003cbr\u003eA: Electrically equivalent — UA741 is the Texas Instruments \/ Fairchild designation, LM741 is the National Semiconductor \/ ON Semiconductor designation. Both are interchangeable in the same circuit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is the LM741 suitable for audio amplifier projects?\u003c\/strong\u003e\u003cbr\u003eA: For basic audio experiments yes, but its 0.5V\/μs slew rate limits full-power bandwidth to ~8kHz at ±10V output. For hi-fi audio, use NE5532, OPA2134, or TL072 instead.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5× UA741 \/ LM741 General-Purpose Op-Amp IC (DIP-8)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991456305387,"sku":"\u003cnone\u003e","price":9.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/ua741-ua741cn-ua741cp-dip-8-operational-amplifier-ic.webp?v=1761800262"},{"product_id":"8002a-md8002a-3w-mono-audio-amplifier-ic-sop8-5pcs","title":"8002A \/ MD8002A 3W Mono Audio Amplifier IC SOP-8 – Pack of 5","description":"\u003ch2\u003e8002A \/ MD8002A 3W Mono Audio Amplifier IC — SOP-8, 2V–5.5V, BTL Output (5-Pack)\u003c\/h2\u003e\u003cp\u003eThe 8002A (also known as MD8002A) is a 3W mono Class AB audio power amplifier IC in a SOP-8 SMD package. With a BTL (Bridge-Tied Load) output configuration, it delivers up to 3W into a 4Ω speaker at 5V supply (1.5W at 4Ω\/5V typical), with no external coupling capacitors required. Operating from 2V to 5.5V, it is the standard audio amplifier IC for portable Bluetooth speakers, Arduino audio projects, DY-SV17F voice modules, and compact audio systems.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eSOP-8 (SMD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003e3W max (4Ω, 5V); 1.5W typ. (4Ω, 5V, 10% THD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Configuration\u003c\/td\u003e\n\u003ctd\u003eBTL (Bridge-Tied Load, differential)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e2.0V – 5.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuiescent Current\u003c\/td\u003e\n\u003ctd\u003e~3mA (no signal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD+N\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.2% (1W, 1kHz, 5V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;80dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShutdown Pin\u003c\/td\u003e\n\u003ctd\u003eYes (active-low, for power saving)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e5 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003e8002A vs PAM8403 vs LM386 — Audio Amplifier Comparison\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003e8002A \/ MD8002A\u003c\/th\u003e\n\u003cth\u003ePAM8403\u003c\/th\u003e\n\u003cth\u003eLM386\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e3W mono (BTL)\u003c\/td\u003e\n\u003ctd\u003e3W+3W stereo (Class D)\u003c\/td\u003e\n\u003ctd\u003e0.5–1W mono\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClass\u003c\/td\u003e\n\u003ctd\u003eClass AB\u003c\/td\u003e\n\u003ctd\u003eClass D\u003c\/td\u003e\n\u003ctd\u003eClass AB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply voltage\u003c\/td\u003e\n\u003ctd\u003e2–5.5V\u003c\/td\u003e\n\u003ctd\u003e2.5–5.5V\u003c\/td\u003e\n\u003ctd\u003e4–12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd\u003e~75%\u003c\/td\u003e\n\u003ctd\u003e~90%\u003c\/td\u003e\n\u003ctd\u003e~50%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio quality\u003c\/td\u003e\n\u003ctd\u003eGood (low THD)\u003c\/td\u003e\n\u003ctd\u003eGood (switching noise)\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eSOP-8 (SMD)\u003c\/td\u003e\n\u003ctd\u003eSOP-16 (SMD)\u003c\/td\u003e\n\u003ctd\u003eDIP-8 (through-hole)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003eCompact mono speaker, voice module\u003c\/td\u003e\n\u003ctd\u003eStereo portable speaker\u003c\/td\u003e\n\u003ctd\u003eSimple mono amp, learning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose 8002A \/ MD8002A?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBTL output\u003c\/strong\u003e — no output coupling capacitor needed, direct speaker connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2V minimum supply\u003c\/strong\u003e — works from a single Li-ion cell (3.7V) or two AA batteries (3V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShutdown pin\u003c\/strong\u003e — pull low to mute and reduce quiescent current to \u0026lt;1μA for battery-powered devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSOP-8 compact\u003c\/strong\u003e — minimal external components (2 input caps + 2 bypass caps), small PCB footprint\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-pack value\u003c\/strong\u003e — sufficient for multiple audio module builds and repairs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible With \/ Common Use Cases\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino audio output\u003c\/strong\u003e: Amplify PWM audio from Arduino (with RC filter) to drive a small speaker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDY-SV17F voice module\u003c\/strong\u003e: External amplifier for higher volume than DY-SV17F’s built-in 5W amp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth speaker\u003c\/strong\u003e: Mono speaker amplifier in compact Bluetooth audio receiver module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntercom \/ doorbell\u003c\/strong\u003e: Voice announcement amplifier for 3.3V–5V embedded systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToy sound module\u003c\/strong\u003e: Compact audio amplifier for battery-powered toy sound effects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I connect 8002A to an Arduino for audio output?\u003c\/strong\u003e\u003cbr\u003eA: Connect a 10kΩ potentiometer from Arduino audio output (PWM pin with RC filter) to 8002A IN+ pin. Connect IN− to GND via 10kΩ. Connect VDD to 5V, GND to GND, SD (shutdown) to VDD or MCU GPIO. Connect speaker between OUT+ and OUT− (BTL, no coupling cap needed). Add 100nF bypass capacitor from VDD to GND close to the IC.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What speaker impedance works with 8002A?\u003c\/strong\u003e\u003cbr\u003eA: 8002A is rated for 4Ω speakers (maximum power). 8Ω speakers also work but deliver half the power (1.5W at 5V into 8Ω vs 3W into 4Ω). Do not use speakers below 4Ω — lower impedance increases current beyond the IC’s rating and may trigger thermal shutdown.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can 8002A replace PAM8610 or TPA2005D1 in an existing design?\u003c\/strong\u003e\u003cbr\u003eA: 8002A is functionally similar to TPA2005D1 (Texas Instruments) — both are 3W BTL mono amplifiers in SOP-8 with similar pinouts. Verify pin-by-pin compatibility before substituting. PAM8610 is a different topology (Class D, higher power) and is not a direct replacement for 8002A.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5× 8002A \/ MD8002A 3W Mono Audio Amplifier IC (SOP-8)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991468822763,"sku":"\u003cnone\u003e","price":8.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/8002a-sop8-audio-amplifier-ic-chip-smd.webp?v=1761718629"},{"product_id":"sg3525-lm358-pwm-inverter-driver-board-12v-24v-adjustable","title":"SG3525 + LM358 PWM Inverter Driver Board — 12V–24V, Adjustable Frequency \u0026 Duty Cycle","description":"\u003ch2\u003eSG3525 + LM358 PWM Inverter Driver Board — 12V–24V\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003eSG3525 + LM358 PWM driver board\u003c\/strong\u003e provides a complete \u003cstrong\u003epush-pull PWM drive stage\u003c\/strong\u003e for building DC-AC inverters and switched-mode power supplies. The \u003cstrong\u003eSG3525 PWM controller IC\u003c\/strong\u003e generates complementary push-pull gate drive signals with adjustable frequency and dead-time, while the \u003cstrong\u003eLM358 op-amp\u003c\/strong\u003e provides feedback and protection functions. Operates from \u003cstrong\u003e12V to 24V DC\u003c\/strong\u003e input.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePWM Controller IC\u003c\/td\u003e\n\u003ctd\u003eSG3525\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOp-Amp IC\u003c\/td\u003e\n\u003ctd\u003eLM358\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e12V – 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput\u003c\/td\u003e\n\u003ctd\u003eComplementary push-pull PWM (for MOSFET\/IGBT gate drive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003eAdjustable (via onboard trimmer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDuty Cycle\u003c\/td\u003e\n\u003ctd\u003eAdjustable (via onboard trimmer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDead-Time Control\u003c\/td\u003e\n\u003ctd\u003eYes (SG3525 built-in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eWhy Choose This Driver Board?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSG3525 push-pull output\u003c\/strong\u003e — complementary gate signals for full-bridge and push-pull topologies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable frequency\u003c\/strong\u003e — tune switching frequency for your transformer and MOSFET\/IGBT selection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in dead-time\u003c\/strong\u003e — prevents shoot-through in bridge topologies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLM358 feedback\u003c\/strong\u003e — output voltage regulation and protection functions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12-24V input\u003c\/strong\u003e — compatible with 12V car battery, 24V battery bank, and solar systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY DC-AC inverter\u003c\/strong\u003e — drive push-pull or full-bridge MOSFET\/IGBT stage for 12V\/24V to AC conversion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitched-mode power supply\u003c\/strong\u003e — push-pull converter control stage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-frequency transformer driver\u003c\/strong\u003e — drive ferrite core transformer for voltage step-up\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower electronics education\u003c\/strong\u003e — learn SG3525 PWM control and push-pull topology\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery-powered inverter\u003c\/strong\u003e — 12V car battery to 220V AC for portable power\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Does this board include the power MOSFETs or IGBTs?\u003c\/strong\u003e\u003cbr\u003eA: No. This is the PWM driver\/control board only. You need to add external MOSFETs (e.g., IRF3205) or IGBTs and a high-frequency transformer for a complete inverter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What frequency range does SG3525 support?\u003c\/strong\u003e\u003cbr\u003eA: The SG3525 oscillator frequency is set by external R and C components. Typical range is 100Hz to 500kHz. The onboard trimmer adjusts within the designed range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can this board drive IGBTs directly?\u003c\/strong\u003e\u003cbr\u003eA: The SG3525 output current is limited (~100mA peak). For IGBTs with large gate charge, add a gate driver buffer (e.g., TC4420, UCC27321) between the SG3525 output and IGBT gate.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1x SG3525 + LM358 PWM Inverter Driver Board\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"1","offer_id":46991477309675,"sku":"14:350852#1","price":7.12,"currency_code":"USD","in_stock":true},{"title":"2","offer_id":46991477342443,"sku":"14:10#2","price":5.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/sg3525-lm358-inverter-driver-mixer-preamp-12v-24v.webp?v=1761629738"},{"product_id":"rc4558d-4558-dip8-dual-op-amp-ic-audio-signal-processing-5pcs","title":"RC4558D \/ 4558 DIP-8 Dual Operational Amplifier IC — Audio \u0026 Signal Processing (5pcs)","description":"\u003ch2\u003eRC4558D \/ 4558 — DIP-8 Dual Operational Amplifier IC\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eRC4558D\u003c\/strong\u003e (commonly marked \u003cstrong\u003e4558\u003c\/strong\u003e) is a classic \u003cstrong\u003edual general-purpose operational amplifier\u003c\/strong\u003e in DIP-8 package, widely used in \u003cstrong\u003eaudio circuits, guitar effects pedals, active filters, and signal processing\u003c\/strong\u003e. With a unity-gain bandwidth of 1MHz and ±18V supply range, it's the go-to op-amp for audio and analog design. This listing provides \u003cstrong\u003e5 pieces\u003c\/strong\u003e — new and original.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Numbers\u003c\/td\u003e\n\u003ctd\u003eRC4558D \/ 4558 \/ RC4558\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eDIP-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Op-Amps\u003c\/td\u003e\n\u003ctd\u003e2 (dual)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e±3V to ±18V (single 6V–36V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnity Gain Bandwidth (GBW)\u003c\/td\u003e\n\u003ctd\u003e1MHz (typ.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlew Rate\u003c\/td\u003e\n\u003ctd\u003e1.7V\/μs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Offset Voltage\u003c\/td\u003e\n\u003ctd\u003e2mV (typ.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Bias Current\u003c\/td\u003e\n\u003ctd\u003e150nA (typ.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current\u003c\/td\u003e\n\u003ctd\u003e±25mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCMRR\u003c\/td\u003e\n\u003ctd\u003e90dB (typ.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e5 PCS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eWhy Choose RC4558D?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eDual op-amp in DIP-8\u003c\/strong\u003e — two independent amplifiers, one package\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eAudio-grade performance\u003c\/strong\u003e — low noise, 90dB CMRR for clean signal amplification\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eWide supply range ±18V\u003c\/strong\u003e — compatible with ±12V, ±15V, and ±18V audio power rails\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eIndustry-standard pinout\u003c\/strong\u003e — pin-compatible with LM358, NE5532, TL072, JRC4558\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eGuitar pedal staple\u003c\/strong\u003e — used in Boss DS-1, OD-1, and countless boutique pedal designs\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eCompatible With \/ Works With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGuitar effects pedals: Boss DS-1 distortion, OD-1 overdrive, SD-1 super overdrive\u003c\/li\u003e\n\u003cli\u003eActive crossover filters (Sallen-Key, MFB topology)\u003c\/li\u003e\n\u003cli\u003eArduino\/ESP32 analog signal conditioning (instrumentation amp front-end)\u003c\/li\u003e\n\u003cli\u003eAudio mixer summing amplifier stages\u003c\/li\u003e\n\u003cli\u003ePhono preamp RIAA equalization circuits\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuitar Distortion Pedal\u003c\/strong\u003e — clipping amplifier stage in Boss DS-1 \/ OD-1 topology\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Preamp\u003c\/strong\u003e — microphone and line-level signal amplification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Low-Pass Filter\u003c\/strong\u003e — Sallen-Key 2nd-order filter for audio crossover\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComparator\u003c\/strong\u003e — zero-crossing detector, window comparator (non-precision)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstrumentation Amp\u003c\/strong\u003e — differential signal amplification for sensor interfaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eRC4558 vs Common Alternatives\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eIC\u003c\/th\u003e\n\u003cth\u003eGBW\u003c\/th\u003e\n\u003cth\u003eNoise\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRC4558D\u003c\/td\u003e\n\u003ctd\u003e1MHz\u003c\/td\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003ctd\u003eGuitar pedals, general audio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNE5532\u003c\/td\u003e\n\u003ctd\u003e10MHz\u003c\/td\u003e\n\u003ctd\u003eLow (5nV\/√Hz)\u003c\/td\u003e\n\u003ctd\u003eHi-fi audio, studio equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTL072\u003c\/td\u003e\n\u003ctd\u003e3MHz\u003c\/td\u003e\n\u003ctd\u003eLow (18nV\/√Hz)\u003c\/td\u003e\n\u003ctd\u003eAudio, JFET input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLM358\u003c\/td\u003e\n\u003ctd\u003e1MHz\u003c\/td\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003ctd\u003eSingle-supply, general purpose\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Is RC4558D the same as JRC4558D?\u003c\/strong\u003e\u003cbr\u003eA: Yes. JRC4558D is the Japan Radio Corporation version; RC4558D is the Raytheon\/Texas Instruments version. Electrically identical, pin-compatible, and interchangeable in all circuits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can RC4558D replace NE5532 in audio circuits?\u003c\/strong\u003e\u003cbr\u003eA: Functionally yes, but NE5532 has lower noise (5nV\/√Hz vs ~15nV\/√Hz) and higher GBW (10MHz). For guitar pedals, RC4558D is preferred for its characteristic warm clipping. For hi-fi preamps, NE5532 is superior.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What supply voltage does RC4558D need for 9V guitar pedal use?\u003c\/strong\u003e\u003cbr\u003eA: Guitar pedals typically use a single 9V supply. Wire pin 8 to +9V and pin 4 to GND. The op-amp operates in single-supply mode with output biased at ~4.5V via a voltage divider.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5× RC4558D \/ 4558 DIP-8 Dual Operational Amplifier IC\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991481798891,"sku":"\u003cnone\u003e","price":4.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/rc4558d-dip8-opamp-ic.webp?v=1761545595"},{"product_id":"lm321mfx-sot23-5-single-low-power-op-amp-ic","title":"LM321MFX SOT-23-5 Single Low-Power Op-Amp IC (10-Pack)","description":"\u003ch2\u003eLM321MFX SOT-23-5 Single Low-Power Operational Amplifier IC\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eLM321MFX\u003c\/strong\u003e is a single-channel, low-power operational amplifier in a compact \u003cstrong\u003eSOT-23-5\u003c\/strong\u003e surface-mount package. With a \u003cstrong\u003e1MHz gain-bandwidth product\u003c\/strong\u003e and wide supply voltage range (1.8V–26V), it is optimized for portable, battery-powered, and space-constrained applications requiring precision analog signal processing.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eLM321MFX \/ LM321\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eSOT-23-5 (SMD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e1.8V – 26V (single) \/ ±0.9V – ±13V (dual)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain-Bandwidth Product\u003c\/td\u003e\n\u003ctd\u003e1MHz typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlew Rate\u003c\/td\u003e\n\u003ctd\u003e1V\/μs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Offset Voltage\u003c\/td\u003e\n\u003ctd\u003e2mV typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Current\u003c\/td\u003e\n\u003ctd\u003e175μA typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Common-Mode Range\u003c\/td\u003e\n\u003ctd\u003eIncludes negative rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Swing\u003c\/td\u003e\n\u003ctd\u003eNear rail-to-rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e10 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose LM321MFX?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Low Power\u003c\/strong\u003e — 175μA supply current extends battery life in IoT and wearable designs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Supply Range\u003c\/strong\u003e — 1.8V–26V covers 3.3V, 5V, 9V, and 12V systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSOT-23-5 Package\u003c\/strong\u003e — Minimal PCB footprint for high-density designs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-Supply Operation\u003c\/strong\u003e — Input common-mode range includes ground for single-supply circuits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLM358\/LM741 Upgrade\u003c\/strong\u003e — Lower power, smaller package, better for modern designs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSensor signal conditioning (temperature, pressure, light)\u003c\/li\u003e\n\u003cli\u003eComparator circuits with hysteresis\u003c\/li\u003e\n\u003cli\u003eActive filter design (low-pass, high-pass, band-pass)\u003c\/li\u003e\n\u003cli\u003eTransimpedance amplifier for photodiode\/current sensing\u003c\/li\u003e\n\u003cli\u003eBattery-powered instrumentation and data loggers\u003c\/li\u003e\n\u003cli\u003eAudio preamplifier stages in portable devices\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible With\u003c\/h3\u003e\u003cp\u003ePin-compatible with LM321, LMV321, TS321, MCP6001 in SOT-23-5. Functionally equivalent to one channel of LM358 (DIP-8) or LM324 (DIP-14).\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What’s the difference between LM321 and LM358?\u003c\/strong\u003e\u003cbr\u003eA: LM321 is a single-channel version of LM358 (dual). LM321MFX adds the SOT-23-5 SMD package and lower power consumption vs. the original LM321 DIP.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can LM321 be used as a comparator?\u003c\/strong\u003e\u003cbr\u003eA: Yes, though it lacks a push-pull output stage. For open-collector comparator behavior, use LM393 instead.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e10× LM321MFX SOT-23-5 Single Op-Amp IC\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991484322027,"sku":"\u003cnone\u003e","price":5.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/lm321-sot23-5-op-amp.webp?v=1761544006"},{"product_id":"lm324n-quad-op-amp-ic-dip-14-5pcs","title":"LM324N Quad Operational Amplifier IC DIP-14 – Pack of 5","description":"\u003ch2\u003eLM324N Quad Operational Amplifier IC — DIP-14 (5-Pack)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eLM324N\u003c\/strong\u003e contains four independent, high-gain operational amplifiers in a single \u003cstrong\u003eDIP-14\u003c\/strong\u003e package. Designed for \u003cstrong\u003esingle-supply operation from 3V to 32V\u003c\/strong\u003e (or ±1.5V–16V dual supply), it is one of the most widely used op-amps in analog circuit design — from comparators and filters to signal conditioning and oscillators.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eLM324N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eDIP-14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Amplifiers\u003c\/td\u003e\n\u003ctd\u003e4 (quad)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage (Single)\u003c\/td\u003e\n\u003ctd\u003e3V – 32V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage (Dual)\u003c\/td\u003e\n\u003ctd\u003e±1.5V – ±16V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain-Bandwidth Product\u003c\/td\u003e\n\u003ctd\u003e1MHz typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Offset Voltage\u003c\/td\u003e\n\u003ctd\u003e2mV typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Bias Current\u003c\/td\u003e\n\u003ctd\u003e45nA typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage Swing\u003c\/td\u003e\n\u003ctd\u003e0V to VCC−1.5V (single supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Current (total)\u003c\/td\u003e\n\u003ctd\u003e1.4mA typical (all 4 amps)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e5 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose LM324N?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-Supply Operation\u003c\/strong\u003e — Input common-mode range includes ground; works from a single 5V or 12V rail\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuad Package\u003c\/strong\u003e — 4 op-amps in one DIP-14 IC reduces component count and board space\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Low Power\u003c\/strong\u003e — 1.4mA total for all 4 amplifiers; ideal for battery-powered designs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Supply Range\u003c\/strong\u003e — 3V–32V covers virtually all common supply voltages\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Standard\u003c\/strong\u003e — Pin-compatible with LM2902, MC3403, TL084 (JFET input variant)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVoltage comparator circuits (with or without hysteresis)\u003c\/li\u003e\n\u003cli\u003eActive low-pass, high-pass, and band-pass filters\u003c\/li\u003e\n\u003cli\u003eTransimpedance amplifier for photodiode current sensing\u003c\/li\u003e\n\u003cli\u003eSumming amplifier for audio mixing\u003c\/li\u003e\n\u003cli\u003ePrecision rectifier and peak detector\u003c\/li\u003e\n\u003cli\u003eOscillator and waveform generator circuits\u003c\/li\u003e\n\u003cli\u003eSensor signal conditioning (temperature, pressure, light)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLM324 vs LM358 vs LM741\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eIC\u003c\/th\u003e\n\u003cth\u003eChannels\u003c\/th\u003e\n\u003cth\u003eSingle Supply\u003c\/th\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLM324N\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e✅ Yes (3–32V)\u003c\/td\u003e\n\u003ctd\u003eDIP-14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLM358N\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e✅ Yes (3–32V)\u003c\/td\u003e\n\u003ctd\u003eDIP-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLM741\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e❌ Dual only\u003c\/td\u003e\n\u003ctd\u003eDIP-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Can LM324N output rail-to-rail?\u003c\/strong\u003e\u003cbr\u003eA: No — output swings to within ~1.5V of VCC. For true rail-to-rail output, use LMV324 or MCP6004.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is LM324N suitable for audio applications?\u003c\/strong\u003e\u003cbr\u003eA: For low-frequency audio (below 10kHz) yes. The 1MHz GBW limits high-frequency performance. Use NE5532 or TL072 for audio-grade applications.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5× LM324N Quad Op-Amp IC DIP-14\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991487107307,"sku":"\u003cnone\u003e","price":8.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/lm324n-dip14-opamp.webp?v=1761538696"},{"product_id":"tl072cp-dual-op-amp-ic-dip-8-tl072cn-5pcs","title":"TL072CP Dual JFET Op-Amp IC DIP-8 – Pack of 5 (TL072CN Low-Noise)","description":"\u003ch2\u003eTL072CP Dual JFET-Input Op-Amp IC — DIP-8, Low-Noise Audio (5-Pack)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eTL072CP\u003c\/strong\u003e is a dual JFET-input operational amplifier in a \u003cstrong\u003eDIP-8\u003c\/strong\u003e through-hole package, featuring a \u003cstrong\u003e13V\/μs slew rate\u003c\/strong\u003e, \u003cstrong\u003e3MHz gain-bandwidth product\u003c\/strong\u003e, and ultra-low input bias current of just \u003cstrong\u003e65pA\u003c\/strong\u003e. It is the standard op-amp for audio preamplifiers, active filters, and signal processing circuits where low noise and high input impedance are required.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eTL072CP \/ TL072CN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eDIP-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Amplifiers\u003c\/td\u003e\n\u003ctd\u003e2 (dual)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Type\u003c\/td\u003e\n\u003ctd\u003eJFET (low bias current)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e±2.25V – ±18V (dual) \/ 4.5V–36V (single)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain-Bandwidth Product\u003c\/td\u003e\n\u003ctd\u003e3MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlew Rate\u003c\/td\u003e\n\u003ctd\u003e13V\/μs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Bias Current\u003c\/td\u003e\n\u003ctd\u003e65pA typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Offset Voltage\u003c\/td\u003e\n\u003ctd\u003e3mV typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEquivalent Input Noise\u003c\/td\u003e\n\u003ctd\u003e18nV\/√Hz @ 1kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Current (total)\u003c\/td\u003e\n\u003ctd\u003e2.5mA typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e5 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eTL072 vs LM358 vs NE5532 — Audio Op-Amp Comparison\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eTL072CP\u003c\/th\u003e\n\u003cth\u003eLM358N\u003c\/th\u003e\n\u003cth\u003eNE5532\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Type\u003c\/td\u003e\n\u003ctd\u003eJFET\u003c\/td\u003e\n\u003ctd\u003eBipolar\u003c\/td\u003e\n\u003ctd\u003eBipolar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlew Rate\u003c\/td\u003e\n\u003ctd\u003e13V\/μs\u003c\/td\u003e\n\u003ctd\u003e0.3V\/μs\u003c\/td\u003e\n\u003ctd\u003e9V\/μs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGBW\u003c\/td\u003e\n\u003ctd\u003e3MHz\u003c\/td\u003e\n\u003ctd\u003e1MHz\u003c\/td\u003e\n\u003ctd\u003e10MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Bias Current\u003c\/td\u003e\n\u003ctd\u003e65pA\u003c\/td\u003e\n\u003ctd\u003e45nA\u003c\/td\u003e\n\u003ctd\u003e200nA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003e18nV\/√Hz\u003c\/td\u003e\n\u003ctd\u003e40nV\/√Hz\u003c\/td\u003e\n\u003ctd\u003e5nV\/√Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eHigh-impedance audio, filters\u003c\/td\u003e\n\u003ctd\u003eLow-power general purpose\u003c\/td\u003e\n\u003ctd\u003eLow-noise audio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose TL072CP?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eJFET Inputs\u003c\/strong\u003e — 65pA bias current; ideal for high-impedance sources (guitar pickups, microphones, piezo sensors)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13V\/μs Slew Rate\u003c\/strong\u003e — Handles audio frequencies up to ~100kHz without slew-rate distortion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Noise\u003c\/strong\u003e — 18nV\/√Hz suitable for audio preamp and signal conditioning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e±18V Supply\u003c\/strong\u003e — Wide supply range for ±15V audio equipment and ±12V systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Package\u003c\/strong\u003e — Two op-amps in DIP-8; stereo preamp in one IC\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGuitar and instrument preamplifier (high-impedance input)\u003c\/li\u003e\n\u003cli\u003eActive low-pass, high-pass, and band-pass audio filters\u003c\/li\u003e\n\u003cli\u003eStereo audio mixer summing amplifier\u003c\/li\u003e\n\u003cli\u003ePiezoelectric sensor signal conditioning\u003c\/li\u003e\n\u003cli\u003ePrecision voltage follower (buffer) for high-impedance sources\u003c\/li\u003e\n\u003cli\u003eWaveform generator integrator and differentiator\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Can TL072CP run on a single 9V supply?\u003c\/strong\u003e\u003cbr\u003eA: Yes — use single supply (9V to V+ and GND to V−). Bias inputs at VCC\/2 (4.5V) via voltage divider for AC-coupled audio signals.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is TL072CP suitable for phono (RIAA) preamp?\u003c\/strong\u003e\u003cbr\u003eA: Yes — low bias current and adequate GBW make it suitable for RIAA equalization. NE5532 is preferred for lowest noise, but TL072 is widely used in budget phono stages.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5× TL072CP DIP-8 Dual JFET Op-Amp IC\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991498445035,"sku":"\u003cnone\u003e","price":8.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/tl072cp-dip8-op-amp.webp?v=1761534343"},{"product_id":"tda7377a-audio-amplifier-ic-zip-15-stereo","title":"TDA7377A Stereo Audio Amplifier IC ZIP-15 – High-Performance Car \u0026 DIY Audio","description":"\u003ch2\u003eTDA7377A Stereo Audio Amplifier IC - ZIP-15 Package\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eTDA7377A\u003c\/strong\u003e is a high-performance stereo audio power amplifier IC from STMicroelectronics in a \u003cstrong\u003eZIP-15\u003c\/strong\u003e (Multiwatt15) package. Delivering \u003cstrong\u003e2x30W in stereo bridge mode\u003c\/strong\u003e or \u003cstrong\u003e4x10W in quad mode\u003c\/strong\u003e from a 14.4V supply, it is the standard IC for car audio head units, home audio amplifiers, and DIY speaker amplifier projects.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eTDA7377A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eZIP-15 (Multiwatt15)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e8V - 18V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power (Stereo Bridge)\u003c\/td\u003e\n\u003ctd\u003e2x30W @ 14.4V, 4 ohm, 10% THD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power (Quad)\u003c\/td\u003e\n\u003ctd\u003e4x10W @ 14.4V, 4 ohm, 10% THD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power (Music Power)\u003c\/td\u003e\n\u003ctd\u003e2x22W @ 14.4V, 4 ohm, 1% THD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e20Hz - 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD (at 1W)\u003c\/td\u003e\n\u003ctd\u003e0.05% typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal-to-Noise Ratio\u003c\/td\u003e\n\u003ctd\u003e100dB typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandby Mode\u003c\/td\u003e\n\u003ctd\u003eYes (ST-BY pin, active-low)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMute Function\u003c\/td\u003e\n\u003ctd\u003eYes (MUTE pin)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eThermal shutdown, short-circuit, load dump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eOperating Modes\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMode\u003c\/th\u003e\n\u003cth\u003eChannels\u003c\/th\u003e\n\u003cth\u003ePower per Channel\u003c\/th\u003e\n\u003cth\u003eLoad\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStereo Bridge (BTL)\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e30W\u003c\/td\u003e\n\u003ctd\u003e4 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuad (SE)\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e10W\u003c\/td\u003e\n\u003ctd\u003e4 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose TDA7377A?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Output Power\u003c\/strong\u003e - 2x30W bridge mode for powerful stereo audio from a single IC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow THD\u003c\/strong\u003e - 0.05% at 1W for clean, high-fidelity audio reproduction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandby and Mute\u003c\/strong\u003e - Built-in ST-BY and MUTE pins for power management and click-pop suppression\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Protection\u003c\/strong\u003e - Thermal shutdown, short-circuit, and load dump protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimal External Components\u003c\/strong\u003e - Requires only bypass capacitors and gain resistors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCar audio head unit amplifier stage\u003c\/li\u003e\n\u003cli\u003eDIY stereo speaker amplifier (2x30W)\u003c\/li\u003e\n\u003cli\u003eHome audio active speaker amplifier\u003c\/li\u003e\n\u003cli\u003e4-channel surround sound amplifier\u003c\/li\u003e\n\u003cli\u003eMultimedia speaker system amplifier\u003c\/li\u003e\n\u003cli\u003eSubwoofer amplifier (bridge mode)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Application Circuit\u003c\/h3\u003e\u003cp\u003eSupply: 12V-14.4V DC. Input: AC-coupled via 1uF capacitor. Gain set by external resistors (typical gain: 26dB). Bypass capacitors: 100uF on VS pin, 100nF on each supply bypass point. Heatsink required for sustained high-power operation.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Can TDA7377A drive 8 ohm speakers?\u003c\/strong\u003e Yes - output power reduces to approximately 2x15W at 8 ohm in bridge mode. THD improves at lower power levels.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Does TDA7377A need a heatsink?\u003c\/strong\u003e Yes - at full power, thermal dissipation can reach 20W+. Use a heatsink with thermal resistance of 3C\/W or lower for continuous operation.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1x TDA7377A ZIP-15 Stereo Audio Amplifier IC\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991502934251,"sku":"\u003cnone\u003e","price":8.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/tda7377a-audio-amplifier-ic.webp?v=1761533770"},{"product_id":"ua741-lm741-dip8-general-purpose-op-amp-ic-1mhz-10pack","title":"UA741 \/ LM741 DIP-8 General Purpose Op-Amp IC 1MHz (10-Pack)","description":"\u003ch2\u003eUA741 \/ LM741 DIP-8 General Purpose Operational Amplifier IC (10-Pack)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eUA741\u003c\/strong\u003e (also known as \u003cstrong\u003eLM741\u003c\/strong\u003e) is the classic single general-purpose operational amplifier in a \u003cstrong\u003eDIP-8\u003c\/strong\u003e through-hole package. With a \u003cstrong\u003e1MHz gain-bandwidth product\u003c\/strong\u003e and internal frequency compensation, it requires no external compensation capacitors and is the foundational op-amp for learning analog circuit design, comparators, integrators, and signal conditioning.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eUA741 \/ LM741 \/ uA741\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eDIP-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Amplifiers\u003c\/td\u003e\n\u003ctd\u003e1 (single)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Type\u003c\/td\u003e\n\u003ctd\u003eBipolar (NPN differential pair)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e+\/-5V to +\/-18V (dual supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain-Bandwidth Product\u003c\/td\u003e\n\u003ctd\u003e1MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlew Rate\u003c\/td\u003e\n\u003ctd\u003e0.5V\/us\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Bias Current\u003c\/td\u003e\n\u003ctd\u003e80nA typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Offset Voltage\u003c\/td\u003e\n\u003ctd\u003e1mV typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpen-Loop Gain\u003c\/td\u003e\n\u003ctd\u003e200V\/mV (106dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Short-Circuit Protected\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e10 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eUA741 vs Modern Op-Amps\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eUA741\u003c\/th\u003e\n\u003cth\u003eTL072\u003c\/th\u003e\n\u003cth\u003eNE5532\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGBW\u003c\/td\u003e\n\u003ctd\u003e1MHz\u003c\/td\u003e\n\u003ctd\u003e3MHz\u003c\/td\u003e\n\u003ctd\u003e10MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlew Rate\u003c\/td\u003e\n\u003ctd\u003e0.5V\/us\u003c\/td\u003e\n\u003ctd\u003e13V\/us\u003c\/td\u003e\n\u003ctd\u003e9V\/us\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Bias\u003c\/td\u003e\n\u003ctd\u003e80nA\u003c\/td\u003e\n\u003ctd\u003e65pA (JFET)\u003c\/td\u003e\n\u003ctd\u003e200nA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle Supply\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eEducation, DC circuits\u003c\/td\u003e\n\u003ctd\u003eAudio, high-Z sources\u003c\/td\u003e\n\u003ctd\u003eLow-noise audio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose UA741?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Compensation\u003c\/strong\u003e - No external capacitor needed; stable at unity gain out of the box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort-Circuit Protected\u003c\/strong\u003e - Output withstands indefinite short to supply rails\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Classic\u003c\/strong\u003e - Extensive textbook coverage; ideal for learning op-amp fundamentals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIP-8 Package\u003c\/strong\u003e - Breadboard-friendly for prototyping and education\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack of 10\u003c\/strong\u003e - Sufficient for classroom labs and multiple projects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eInverting and non-inverting amplifier circuits\u003c\/li\u003e\n\u003cli\u003eVoltage comparator (without hysteresis)\u003c\/li\u003e\n\u003cli\u003eIntegrator and differentiator circuits\u003c\/li\u003e\n\u003cli\u003eSumming amplifier for signal mixing\u003c\/li\u003e\n\u003cli\u003eActive filter design (low-frequency, below 10kHz)\u003c\/li\u003e\n\u003cli\u003eElectronics education and lab exercises\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Can UA741 operate on a single supply?\u003c\/strong\u003e No - UA741 requires a dual supply (+\/-5V to +\/-18V). For single-supply operation, use LM358 or TL072 which include ground in their common-mode input range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Why is UA741 slew rate so low (0.5V\/us)?\u003c\/strong\u003e The internal 30pF compensation capacitor limits slew rate. This makes UA741 unsuitable for audio above ~10kHz or fast signal processing. Use TL072 or NE5532 for audio applications.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e10x UA741 DIP-8 General Purpose Op-Amp IC\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991505686763,"sku":"\u003cnone\u003e","price":7.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/ua741-op-amp-dip8.webp?v=1761531227"},{"product_id":"tda7388-4x41w-car-audio-amplifier-ic-stereo-bridged","title":"TDA7388 4×41W Car Audio Amplifier IC – Stereo \u0026 Bridged Amplifier Chip","description":"\u003ch2\u003eTDA7388 4x41W Quad Bridge Car Audio Amplifier IC\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eTDA7388\u003c\/strong\u003e is a quad bridge (BTL) audio power amplifier IC from STMicroelectronics, delivering \u003cstrong\u003e4x41W peak power\u003c\/strong\u003e (4x25W RMS at 4 ohm, 14.4V) in a Multiwatt15 package. Designed for \u003cstrong\u003ecar audio head units\u003c\/strong\u003e and \u003cstrong\u003e4-channel amplifiers\u003c\/strong\u003e, it features built-in standby\/mute, diagnostic output, and comprehensive protection in a single IC.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eTDA7388\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eMultiwatt15 (ZIP-15)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e8V - 18V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power (Peak)\u003c\/td\u003e\n\u003ctd\u003e4x41W @ 14.4V, 4 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power (RMS, 1% THD)\u003c\/td\u003e\n\u003ctd\u003e4x25W @ 14.4V, 4 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power (RMS, 10% THD)\u003c\/td\u003e\n\u003ctd\u003e4x35W @ 14.4V, 4 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e20Hz - 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD (at 1W)\u003c\/td\u003e\n\u003ctd\u003e0.04% typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal-to-Noise Ratio\u003c\/td\u003e\n\u003ctd\u003e102dB typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandby Mode\u003c\/td\u003e\n\u003ctd\u003eYes (ST-BY pin)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMute Function\u003c\/td\u003e\n\u003ctd\u003eYes (MUTE pin)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostic Output\u003c\/td\u003e\n\u003ctd\u003eYes (DIAG pin - fault indicator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eThermal shutdown, short-circuit, load dump, ESD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eTDA7388 vs TDA7377A\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eTDA7388\u003c\/th\u003e\n\u003cth\u003eTDA7377A\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e4 (quad bridge)\u003c\/td\u003e\n\u003ctd\u003e2 (stereo bridge) or 4 (quad SE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Power\u003c\/td\u003e\n\u003ctd\u003e4x41W\u003c\/td\u003e\n\u003ctd\u003e2x30W (bridge)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostic Pin\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003e4-channel car audio\u003c\/td\u003e\n\u003ctd\u003eStereo home\/car audio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose TDA7388?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4x41W Peak Power\u003c\/strong\u003e - Full 4-channel amplification for front\/rear speaker systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.04% THD at 1W\u003c\/strong\u003e - Excellent audio fidelity for music reproduction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e102dB SNR\u003c\/strong\u003e - Low noise floor for clean audio in car environment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIAG Pin\u003c\/strong\u003e - Fault detection output for system monitoring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Protection\u003c\/strong\u003e - Thermal, short-circuit, load dump, and ESD protection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCar audio head unit 4-channel amplifier stage\u003c\/li\u003e\n\u003cli\u003eDIY 4-channel car amplifier board\u003c\/li\u003e\n\u003cli\u003eMotorcycle audio system amplifier\u003c\/li\u003e\n\u003cli\u003eMarine audio 4-channel amplifier\u003c\/li\u003e\n\u003cli\u003eHome theater surround sound amplifier (4 channels)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Application Circuit\u003c\/h3\u003e\u003cp\u003eSupply: 12V-14.4V DC. Input: AC-coupled via 1uF capacitors (4 channels). Gain: set by external resistors (typical 26dB). Bypass: 100uF on VS pin, 100nF on each supply bypass. Heatsink required: thermal resistance 2C\/W or lower for full power operation.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Can TDA7388 drive 2 ohm speakers?\u003c\/strong\u003e Not recommended - minimum load is 4 ohm. At 2 ohm, output current exceeds safe limits and thermal shutdown may activate.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What heatsink is needed for TDA7388?\u003c\/strong\u003e At 4x25W RMS, total dissipation is approximately 40W. Use a heatsink with thermal resistance of 1.5-2C\/W with thermal compound for reliable continuous operation.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1x TDA7388 Multiwatt15 Quad Bridge Audio Amplifier IC\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991506571499,"sku":"\u003cnone\u003e","price":8.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/tda7388-4x41w-car-audio-amplifier-ic.webp?v=1761529838"},{"product_id":"lm324d-sop14-quad-single-supply-op-amp-ic-5pack","title":"LM324D SOP-14 Quad Single-Supply Op-Amp IC (5-Pack)","description":"\u003ch2\u003eLM324D SOP-14 Quad Single-Supply Operational Amplifier IC (5-Pack)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eLM324D\u003c\/strong\u003e is the surface-mount (\u003cstrong\u003eSOP-14\u003c\/strong\u003e) version of the classic LM324 quad op-amp, containing \u003cstrong\u003efour independent operational amplifiers\u003c\/strong\u003e in a single package. Its key advantage over most op-amps is true \u003cstrong\u003esingle-supply operation from 3V to 32V\u003c\/strong\u003e, with an input common-mode range that includes ground — making it ideal for single-supply sensor signal conditioning, comparator arrays, and active filter designs.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eLM324D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eSOP-14 (SMD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Amplifiers\u003c\/td\u003e\n\u003ctd\u003e4 (quad)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage (Single)\u003c\/td\u003e\n\u003ctd\u003e3V – 32V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage (Dual)\u003c\/td\u003e\n\u003ctd\u003e±1.5V – ±16V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Common-Mode Range\u003c\/td\u003e\n\u003ctd\u003eGND to VCC−1.5V (includes ground)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain-Bandwidth Product\u003c\/td\u003e\n\u003ctd\u003e1MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlew Rate\u003c\/td\u003e\n\u003ctd\u003e0.5V\/μs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Bias Current\u003c\/td\u003e\n\u003ctd\u003e45nA typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Offset Voltage\u003c\/td\u003e\n\u003ctd\u003e2mV typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Sink Current\u003c\/td\u003e\n\u003ctd\u003e10mA typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e5 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eLM324D vs Common Op-Amp Alternatives\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eLM324D (Quad)\u003c\/th\u003e\n\u003cth\u003eLM358 (Dual)\u003c\/th\u003e\n\u003cth\u003eTL072 (Dual)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplifiers per Package\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle Supply\u003c\/td\u003e\n\u003ctd\u003eYes (3V–32V)\u003c\/td\u003e\n\u003ctd\u003eYes (3V–32V)\u003c\/td\u003e\n\u003ctd\u003eYes (4.5V–36V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Includes GND\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGBW\u003c\/td\u003e\n\u003ctd\u003e1MHz\u003c\/td\u003e\n\u003ctd\u003e1MHz\u003c\/td\u003e\n\u003ctd\u003e3MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlew Rate\u003c\/td\u003e\n\u003ctd\u003e0.5V\/μs\u003c\/td\u003e\n\u003ctd\u003e0.3V\/μs\u003c\/td\u003e\n\u003ctd\u003e13V\/μs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003e4-channel signal conditioning\u003c\/td\u003e\n\u003ctd\u003e2-channel, low power\u003c\/td\u003e\n\u003ctd\u003eAudio, high-Z sources\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose LM324D?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 Op-Amps in One Package\u003c\/strong\u003e — Replaces four separate op-amps; reduces component count and PCB area\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue Single-Supply\u003c\/strong\u003e — Input common-mode range includes GND; no virtual ground needed for single-supply designs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Supply Range\u003c\/strong\u003e — 3V–32V covers 3.3V, 5V, 9V, 12V, and 24V systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSOP-14 SMD Package\u003c\/strong\u003e — Compact footprint for modern PCB designs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Standard\u003c\/strong\u003e — Pin-compatible with LM2902, MC3403, and all LM324 variants\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e4-channel sensor signal conditioning (temperature, pressure, current, voltage)\u003c\/li\u003e\n\u003cli\u003eQuad voltage comparator array (window comparator, threshold detection)\u003c\/li\u003e\n\u003cli\u003eActive low-pass filter bank (4 independent filter channels)\u003c\/li\u003e\n\u003cli\u003eSumming amplifier for 4-channel audio mixer\u003c\/li\u003e\n\u003cli\u003eInstrumentation signal chain buffer and gain stage\u003c\/li\u003e\n\u003cli\u003eSingle-supply integrator and differentiator circuits\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Can LM324D replace LM324N (DIP-14)?\u003c\/strong\u003e\u003cbr\u003eA: Yes — electrically identical, different package (SOP-14 SMD vs DIP-14 through-hole). Same pinout order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Why does LM324D output not swing to VCC?\u003c\/strong\u003e\u003cbr\u003eA: LM324 has a PNP input stage; output swings to within ~1.5V of VCC (not rail-to-rail). For rail-to-rail output, use LMV324 or MCP6004.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5× LM324D SOP-14 Quad Op-Amp IC\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"20PCS-LM324","offer_id":46991508046059,"sku":"14:10#20PCS-LM324","price":5.6,"currency_code":"USD","in_stock":true},{"title":"10PCS-LM324","offer_id":46991508078827,"sku":"14:350852#10PCS-LM324","price":4.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/lm324d-sop14-quad-operational-amplifier-smd-ic-chipset.webp?v=1761529392"},{"product_id":"tda2003-zip-5-10w-car-radio-audio-amplifier-ic-10pcs","title":"TDA2003 10W Car Radio Audio Amplifier IC ZIP-5 – Pack of 10","description":"\u003ch2\u003eTDA2003 10W Car Radio Audio Amplifier IC – ZIP-5, Pack of 10\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eTDA2003\u003c\/strong\u003e is a classic, battle-tested audio power amplifier IC that has powered car radios and DIY audio builds for decades. With 10W output in a compact ZIP-5 package, it delivers clean, reliable amplification for automotive and consumer audio applications. This 10-piece pack gives you spares for repair work or enough to build multiple projects at once.\u003c\/p\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Power:\u003c\/strong\u003e 10W (typical, into 2Ω at 14.4V)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e ZIP-5 (5-pin)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 8V – 18V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 40Hz – 15kHz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow distortion\u003c\/strong\u003e at rated output\u003c\/li\u003e\n  \u003cli\u003eBuilt-in short-circuit and thermal protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e10W audio output\u003c\/strong\u003e – suitable for car radio and small speaker systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZIP-5 package\u003c\/strong\u003e – easy through-hole mounting\u003c\/li\u003e\n  \u003cli\u003eBuilt-in thermal shutdown and short-circuit protection\u003c\/li\u003e\n  \u003cli\u003eWide supply voltage range (8V–18V) – ideal for 12V automotive systems\u003c\/li\u003e\n  \u003cli\u003eLow external component count – simple circuit design\u003c\/li\u003e\n  \u003cli\u003eDirect replacement for TDA2002 and compatible amplifier ICs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCar radio amplifiers:\u003c\/strong\u003e OEM and aftermarket head unit repair\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIY audio projects:\u003c\/strong\u003e Small speaker amplifiers, intercom systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAutomotive electronics repair:\u003c\/strong\u003e Replacement for failed amplifier stages\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEducational use:\u003c\/strong\u003e Audio amplifier circuit design and testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e10 × TDA2003 ZIP-5 audio amplifier ICs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eA reliable, affordable amplifier IC trusted by engineers and hobbyists worldwide – stock up and keep your audio projects running.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"10pcs \/ 0","offer_id":47860403831019,"sku":"14:200004889#10pcs;35:3454635#0","price":16.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/tda2003-zip5-audio-amplifier-ic.webp?v=1771905004"}],"url":"https:\/\/keszoox.com\/collections\/op-amps-operational-amplifier-ics.oembed","provider":"Keszoox","version":"1.0","type":"link"}