LM386 Low Voltage Audio Amplifier IC — DIP-8

LM386 Low Voltage Audio Amplifier IC — DIP-8

The LM386 is the most popular low-voltage audio power amplifier IC for hobbyist and Arduino projects. Operating from 4V to 12V with adjustable gain from 20× to 200×, it can drive an 8Ω speaker at up to 1W output power. The DIP-8 package is breadboard compatible, making it ideal for prototyping audio amplifier circuits.

Key Specifications

• Package: DIP-8 | Supply voltage: 4–12V
• Output power: 0.25W (6V) to 1W (12V) into 8Ω
• Voltage gain: 20× (26dB) to 200× (46dB) adjustable
• Quiescent current: 4mA | Bandwidth: 300kHz
• THD: 0.2% at 125mW | Input impedance: 50kΩ
• Compliance: RoHS compliant

Why Choose This?

• ✅ Breadboard compatible DIP-8 — ideal for prototyping audio circuits
• ✅ Low voltage operation — works from 4V battery supply
• ✅ Adjustable gain — set gain with a single resistor between pins 1 and 8
• ✅ Minimal external components — functional with just a few capacitors and resistors

Typical Applications

• Arduino audio output speaker amplifier
• Battery-powered portable audio amplifier
• Intercom and walkie-talkie audio stage
• Signal amplification in audio processing circuits

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