LM358 Pinout
LM358 Dual Op-Amp · Dual op-amp; works on a single supply; cheap and general-purpose.
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OUT1 | Output | Op-amp A output |
| 2 | IN1− | Input | Op-amp A inverting input |
| 3 | IN1+ | Input | Op-amp A non-inverting input |
| 4 | GND · V− | GND | Negative supply / ground |
| 5 | IN2+ | Input | Op-amp B non-inverting input |
| 6 | IN2− | Input | Op-amp B inverting input |
| 7 | OUT2 | Output | Op-amp B output |
| 8 | VCC · V+ | Power | Positive supply (3–30V single supply; 36V on B/BA variants) |
How to read the LM358 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
Can the LM358 run on a single supply?
Yes. Its input common-mode range reaches ground, making it suitable for single-supply use; but its output swing cannot reach the full positive rail.
Do the two op-amps share the supply?
Yes, pin 4 GND / pin 8 VCC are shared by both op-amps.
Why can the output not reach the supply voltage?
The LM358 is not rail-to-rail; the output high end stays about 1.5V below the positive rail. Choose a rail-to-rail op-amp if you need full swing.
Pinout data comes from TI LM358 datasheet (standard DIP-8 numbering). Refer to the actual device datasheet as authoritative for the pinout.