# GS358-SR

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

GS358-SR from Gainsil, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OUTA | output | Amplifier A output. Rail-to-rail output swing; typically <5mV from either rail with RL >100kΩ, 30mV with 10kΩ. Sources/sinks up to ~60mA short-circuit current. |
| 2 | INA- | input | Amplifier A inverting input. Rail-to-rail common-mode range extending 100mV beyond the supplies (VSS-0.1V to VDD+0.1V). Input bias current 1pA typ. |
| 3 | INA+ | input | Amplifier A non-inverting input. Rail-to-rail common-mode range (VSS-0.1V to VDD+0.1V). Input bias current 1pA typ. |
| 4 | VSS | power_in | Negative supply / ground. Single-supply operation: connect to GND with VDD at 2.1V-5.5V. Dual-supply: ±1.05V to ±2.75V. Bypass with 0.1µF ceramic to ground if dual-supply. |
| 5 | INB+ | input | Amplifier B non-inverting input. Rail-to-rail common-mode range (VSS-0.1V to VDD+0.1V). Input bias current 1pA typ. |
| 6 | INB- | input | Amplifier B inverting input. Rail-to-rail common-mode range (VSS-0.1V to VDD+0.1V). Input bias current 1pA typ. |
| 7 | OUTB | output | Amplifier B output. Rail-to-rail output swing; typically <5mV from either rail with RL >100kΩ, 30mV with 10kΩ. Sources/sinks up to ~60mA short-circuit current. |
| 8 | VDD | power_in | Positive supply, 2.1V to 5.5V single-supply (or +1.05V to +2.75V dual-supply). Bypass with a 0.1µF ceramic capacitor close to this pin. Absolute max VDD-VSS = 7.5V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Gainsil |
| Package | SOP-8 |
| Category | Op-amp/Cmp |
| Pins | 8 |

## Ordering variants

Same part, different packaging or reel option.

- `GS358-SR`
- `GS358-SRMR`
- `GS358-SRDR`
- `GS358-SRFR`

## CAD (KiCad official)

- Symbol: `GS358-SR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `gs358-sr-etched.step` / `gs358-sr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gs358-sr.step` / `gs358-sr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Gainsil datasheet](docs/gs358-sr-datasheet.pdf) (16 pp, sha256 `3270b91a8ee80e05`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/gs358-sr-datasheet.pdf)