LM741 Pinout
LM741 Single Op-Amp · Classic single op-amp (common in teaching); needs dual supplies; has offset-null pins.
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OFFSET N1 | Control | Offset null (connects to a potentiometer) |
| 2 | IN− | Input | Inverting input |
| 3 | IN+ | Input | Non-inverting input |
| 4 | V− | GND | Negative supply |
| 5 | OFFSET N2 | Control | Offset null (connects to the other end of the potentiometer) |
| 6 | OUT | Output | Output |
| 7 | V+ | Power | Positive supply (±5 to ±18V) |
| 8 | NC | Control | No connection |
How to read the LM741 pinout
- 01
Find pin 1
One end of the chip has a half-circle notch or a dot; with the notch facing up, the top-left pin is pin 1.
- 02
Count counter-clockwise
Count counter-clockwise from pin 1: go down the left side first, then up the right side from the bottom.
- 03
Check the table below
Look up each pin's function by number in the table below; power/ground are color-coded, and alternate-function signals are in parentheses.
Frequently asked questions
How do I use the offset-null pins (1, 5)?
Connect a 10kΩ potentiometer between pins 1 and 5 with the wiper to V−; trimming it cancels the output offset voltage. Leave them floating if unused.
Can the LM741 run single-supply / rail-to-rail?
It is not rail-to-rail and usually needs dual supplies; modern designs mostly use better op-amps (e.g. TL072, MCP6002). The 741 is mainly for teaching.
Pinout data comes from TI LM741 datasheet (standard DIP-8 numbering). Refer to the actual device datasheet as authoritative for the pinout.