# LM358-SR

**Gainsil** · Operational Amplifier · SOP-8

LM358-SR from Gainsil, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OUTA | output | Output of amplifier A. |
| 2 | INA- | input | Inverting input of amplifier A. |
| 3 | INA+ | input | Non-inverting input of amplifier A. |
| 4 | VSS | power_in | Negative supply or ground; for dual-supply operation (±1.5V to ±14V) bypass with a 0.1µF ceramic capacitor to ground. |
| 5 | INB+ | input | Non-inverting input of amplifier B. |
| 6 | INB- | input | Inverting input of amplifier B. |
| 7 | OUTB | output | Output of amplifier B. |
| 8 | VDD | power_in | Positive supply, 3V to 28V single-supply (absolute maximum 32V); place a 0.1µF ceramic bypass capacitor close to this pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Gainsil |
| Package | SOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `LM358-SR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `lm358-sr-etched.step` / `lm358-sr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm358-sr.step` / `lm358-sr.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Gainsil datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884274187132928) (12 pp, sha256 `e614f8c2e1c0a60b`, retrieved 2026-10-13, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/lm358-sr-datasheet.pdf)