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UA741 / LM741 General-Purpose Op-Amp IC — DIP-8, ±5–18V, 1MHz GBW (5-Pack)
UA741 / LM741 General-Purpose Op-Amp IC DIP-8, ±5–18V, 1MHz GBW (5-Pack)
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UA741 / LM741 General-Purpose Op-Amp — DIP-8, ±5–18V, 1MHz GBW (5-Pack)
The 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.
Key Specifications
| Parameter | Value |
|---|---|
| Package | DIP-8 (through-hole) |
| Supply Voltage | ±5V to ±18V (dual supply) |
| Gain-Bandwidth Product (GBW) | 1MHz |
| Slew Rate | 0.5 V/μs |
| Input Offset Voltage | 2mV typ., 6mV max |
| Input Bias Current | 80nA typ. |
| Open-Loop Gain | 200V/mV typ. |
| Output Short-Circuit Protection | Yes (internal) |
| Quantity | 5 pieces |
Why Choose UA741 / LM741?
- Internal compensation — stable at unity gain without external capacitors, unlike older uncompensated op-amps
- Short-circuit protected output — survives accidental output-to-ground shorts during prototyping
- DIP-8 breadboard-friendly — plugs directly into standard 2.54mm breadboards and DIP sockets
- Industry-standard pinout — pin-compatible with LM741, μA741, CA741, and TL071 (check datasheet for exact compatibility)
- 5-pack value — enough for lab exercises and multiple circuit builds
Compatible With / Common Use Cases
- Arduino analog signal conditioning (non-inverting amplifier before ADC input)
- Inverting and non-inverting amplifier circuits (electronics lab standard)
- Integrator and differentiator circuits (control systems education)
- Voltage comparator (note: dedicated comparators like LM393 are faster for this use)
- Active filter design (low-pass, high-pass, band-pass)
- Schmitt trigger and hysteresis circuits
Frequently Asked Questions
Q: Can the LM741 run on a single supply (e.g., 5V or 12V)?
A: 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.
Q: What is the difference between UA741 and LM741?
A: Electrically equivalent — UA741 is the Texas Instruments / Fairchild designation, LM741 is the National Semiconductor / ON Semiconductor designation. Both are interchangeable in the same circuit.
Q: Is the LM741 suitable for audio amplifier projects?
A: 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.
Package Contents
- 5× UA741 / LM741 General-Purpose Op-Amp IC (DIP-8)
