component
GS321A-TR
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Gainsil Operational Amplifier, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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GS321A-TR
Gainsil · Operational Amplifier · SOT-23-5
GS321A-TR from Gainsil, in a SOT-23-5. 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 | IN+ | input | Non-inverting input; rail-to-rail input common-mode range extends from VSS-0.1V to VDD+0.1V. |
| 2 | VSS | power_in | Negative supply (ground in single-supply operation); for dual supplies bypass to ground with a 0.1µF ceramic capacitor. |
| 3 | IN- | input | Inverting input; rail-to-rail input common-mode range extends from VSS-0.1V to VDD+0.1V. |
| 4 | OUT | output | Rail-to-rail amplifier output, optimized for bandwidth rather than driving capacitive loads. |
| 5 | VDD | power_in | Positive supply for 2.1V to 5.5V operation (absolute maximum 7.5V to VSS); place a 0.1µF ceramic bypass capacitor close to this pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Gainsil |
| Package | SOT-23-5 |
| Category | Amplifiers/Comparators |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
GS321A-TR - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
gs321a-tr-etched.step/gs321a-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);gs321a-tr.step/gs321a-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Gainsil datasheet (14 pp, sha256
1af8e54731033d8c, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).
# GS321A-TR
**Gainsil** · Operational Amplifier · SOT-23-5
GS321A-TR from Gainsil, in a SOT-23-5. 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 | IN+ | input | Non-inverting input; rail-to-rail input common-mode range extends from VSS-0.1V to VDD+0.1V. |
| 2 | VSS | power_in | Negative supply (ground in single-supply operation); for dual supplies bypass to ground with a 0.1µF ceramic capacitor. |
| 3 | IN- | input | Inverting input; rail-to-rail input common-mode range extends from VSS-0.1V to VDD+0.1V. |
| 4 | OUT | output | Rail-to-rail amplifier output, optimized for bandwidth rather than driving capacitive loads. |
| 5 | VDD | power_in | Positive supply for 2.1V to 5.5V operation (absolute maximum 7.5V to VSS); place a 0.1µF ceramic bypass capacitor close to this pin. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Gainsil |
| Package | SOT-23-5 |
| Category | Amplifiers/Comparators |
| Pins | 5 |
## CAD (KiCad official)
- Symbol: `GS321A-TR`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `gs321a-tr-etched.step` / `gs321a-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gs321a-tr.step` / `gs321a-tr.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/8588905141164916736) (14 pp, sha256 `1af8e54731033d8c`, retrieved 2026-10-09, 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/gs321a-tr-datasheet.pdf)