# COS9102SRA

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

COS9102SRA 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 | OUT1 | output | Channel 1 output; the output voltage range extends to within millivolts of each supply rail. |
| 2 | -IN1 | input | Channel 1 inverting input; voltage range can go from -Vs -0.3V to +Vs +0.3V. |
| 3 | +IN1 | input | Channel 1 non-inverting input; 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 with a 0.1μF capacitor placed close to the part. |
| 5 | +IN2 | input | Channel 2 non-inverting input; same voltage range as -IN (-Vs -0.3V to +Vs +0.3V). |
| 6 | -IN2 | input | Channel 2 inverting input; voltage range can go from -Vs -0.3V to +Vs +0.3V. |
| 7 | OUT2 | output | Channel 2 output; the output voltage range extends to within millivolts of each supply rail. |
| 8 | +Vs | power_in | Positive power supply (2.7V to 16V); place a 0.1μF bypass capacitor as close to the part as possible. |

## Key specifications

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

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Offset Voltage (COS910xA) | VOS | -2 | 0.6 | 2 | mV |  | 4 |
| Input Offset Voltage Drift | ΔVOS/ΔT | -1 |  | 1 | μV/°C | -40 to 125°C | 4 |
| Input Bias Current | IB | -10 |  | 10 | pA |  | 4 |
| Input Offset Current | IOS | -10 |  | 10 | pA |  | 4 |
| Common-Mode Voltage Range | VCM | -0.1 |  | 12.1 | V |  | 4 |
| Common-Mode Rejection Ratio | CMRR | 125 |  |  | dB | VCM =0.1V to 15.9V | 4 |
| Open-Loop Voltage Gain | AOL | 120 |  |  | dB | VO=0.2V to 15.8V | 4 |
| Output Voltage Swing from Rail |  |  |  | 3 | mV | RL=1MΩ | 4 |
| Output Voltage Swing from Rail |  |  |  | 30 | mV | RL=100kΩ | 4 |
| Output Voltage Swing from Rail |  |  |  | 300 | mV | RL=10kΩ | 4 |
| Short-Circuit Current | ISC | -50 |  | 50 | mA |  | 4 |
| Operating Voltage Range |  | 2.7 |  | 16 | V |  | 4 |
| Power Supply Rejection Ratio | PSRR | 80 | 100 |  | dB | VS = 3.5V to 16V | 4 |
| Power Supply: +Vs to -Vs (absolute maximum) |  |  |  | 16 | V |  | 3 |
| Input Current (absolute maximum) |  |  |  | 10 | mA |  | 3 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 3 |
| Junction Temperature |  |  |  | 150 | °C |  | 3 |
| Operating Temperature Range (absolute maximum) |  | -40 |  | 125 | °C |  | 3 |
| ESD Susceptibility, HBM |  |  |  | 2000 | V | HBM | 3 |
| DC Supply Voltage (recommended) |  | 3 |  | 12 | V |  | 3 |
| Operating Ambient Temperature (recommended) |  | -40 |  | 85 | °C |  | 3 |
| Package Thermal Resistance, junction-to-ambient (SOP8) | RθJA |  | 155 |  | °C/W | SOP8 package | 3 |
| Quiescent Current / Amplifier | IQ |  | 80 |  | μA | VS=12V | 4 |
| Quiescent Current / Amplifier | IQ |  | 60 |  | μA | VS=5V | 4 |
| Quiescent Current / Amplifier | IQ |  | 36 |  | μA | VS=2.7V | 4 |
| Gain Bandwidth Product | GBWP |  | 1 |  | MHz | G=+1 | 4 |
| Slew Rate | SR |  | 0.8 |  | V/μs | G = +1 , 2V Output Step | 4 |
| Voltage Noise Density | en |  | 40 |  | nV/√Hz | f=1kHz | 4 |

## CAD (KiCad official)

- Symbol: `COS9102SRA`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `cos9102sra-etched.step` / `cos9102sra-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cos9102sra.step` / `cos9102sra.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [COSINE datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8773985137102852096) (10 pp, sha256 `81fd1195118bdd12`, retrieved 2026-10-20, 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/cos9102sra-datasheet.pdf)