What Is the LM741? Classic Op-Amp: Pinout, Offset Null and Uses
The LM741 (uA741) is a classic, internally frequency-compensated single operational amplifier (op-amp). It works best from a symmetric (±5–±18 V) supply and is a standard in teaching and classic analog circuits. With a ~1 MHz GBW and ~0.5 V/µs slew rate it is slow, and it is not suited to single supply — for that, the TL071 or LM358 is preferred.
The LM741 (uA741) is the most classic single operational amplifier (op-amp) in electronics history. Internally frequency-compensated and simple to use, it is a teaching standard. Most modern designs have moved to newer op-amps, but it remains a cornerstone for learning op-amps and for classic circuits. For the concept, see what is an op-amp.
What is the LM741 used for?
It amplifies, compares or performs math (summing, integration, differentiation) on a weak analog signal. Being single, it holds one op-amp per package. It works best from a symmetric (±) supply — which sets it apart from the single-supply LM358.
LM741 pinout (DIP-8)
| Pin | Function |
|---|---|
| 1 | Offset null |
| 2 | Input − (inverting) |
| 3 | Input + (non-inverting) |
| 4 | V− (negative supply) |
| 5 | Offset null |
| 6 | Output (OUT) |
| 7 | V+ (positive supply) |
| 8 | NC (no connection) |
Key electrical specifications
| Parameter | Typical value |
|---|---|
| Supply (dual) | ±5 V – ±18 V |
| Gain–bandwidth (GBW) | ~1 MHz |
| Slew rate | ~0.5 V/µs |
| Input offset voltage | ~1–6 mV |
| Internal frequency compensation | Yes |
Check the manufacturer's datasheet for exact figures.
Offset null adjustment
Pins 1 and 5 null the DC offset at the output: connect a 10 kΩ potentiometer between pin 1 and pin 5 with its wiper to V−, and adjust until the output reads 0 V. In most non-precision uses they can be left unconnected.
Limitations
- Slow: a ~0.5 V/µs slew rate is low for fast/high-frequency signals.
- Not ideal for single supply: its input and output cannot get close to the rails; for single-supply work the LM358 is better.
- Noise/offset: higher than modern precision op-amps.
LM741 equivalents and alternatives
- TL071: JFET input, faster, low noise — the modern replacement for the 741.
- LM358: single-supply, dual op-amp.
- NE5532: low noise, for audio.
- OP07: for precision (low-offset) applications.
Find it in our catalog
To see multi-source price and stock for the LM741 and its alternatives, use the LM741 search. To compute gain, use the Op-Amp Gain Calculator.