# COS6021SR

**COSINE** · Operational Amplifier · SOP-8

COS6021SR from COSINE, 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 | NC | unconnected | No connection. |
| 2 | -IN | input | Inverting input of the amplifier; voltage range can go from -Vs -0.3V to +Vs + 0.3V. |
| 3 | +IN | input | Non-inverting input of the amplifier; has the same voltage range as -IN (-Vs -0.3V to +Vs + 0.3V). |
| 4 | -Vs | power_in | Negative power supply or ground; if not connected to ground, bypass it with a 0.1μF capacitor placed as close to the part as possible. |
| 5 | NC | unconnected | No connection. |
| 6 | OUT | output | Amplifier output; the output voltage range extends to within millivolts of each supply rail. |
| 7 | +Vs | power_in | Positive power supply (2.5V to 5.5V); place a 0.1μF bypass capacitor as close to the part as possible. |
| 8 | NC | unconnected | No connection. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `COS6021SR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `cos6021sr-etched.step` / `cos6021sr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cos6021sr.step` / `cos6021sr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [COSINE datasheet](docs/cos6021sr-datasheet.pdf) (10 pp, sha256 `b219ed26b48f0f3e`, retrieved 2026-10-27, 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/cos6021sr-datasheet.pdf)