# COS8554TRA

**COSINE** · Precision Op Amps · TSSOP-14

COS8554TRA from COSINE, in a TSSOP-14. 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 | Output of amplifier 1, whose voltage range extends to within millivolts of each supply rail. |
| 2 | -IN1 | input | Inverting input of amplifier 1; voltage range can go from -Vs -0.3V to +Vs +0.3V. |
| 3 | +IN1 | input | Non-inverting input of amplifier 1, with the same voltage range as -IN (-Vs -0.3V to +Vs +0.3V). |
| 4 | +Vs | power_in | Positive power supply (1.8V to 5.5V), bypassed with a 0.1µF capacitor placed as close to the part as possible. |
| 5 | +IN2 | input | Non-inverting input of amplifier 2, with the same voltage range as -IN (-Vs -0.3V to +Vs +0.3V). |
| 6 | -IN2 | input | Inverting input of amplifier 2; voltage range can go from -Vs -0.3V to +Vs +0.3V. |
| 7 | OUT2 | output | Output of amplifier 2, whose voltage range extends to within millivolts of each supply rail. |
| 8 | OUT3 | output | Output of amplifier 3, whose voltage range extends to within millivolts of each supply rail. |
| 9 | -IN3 | input | Inverting input of amplifier 3; voltage range can go from -Vs -0.3V to +Vs +0.3V. |
| 10 | +IN3 | input | Non-inverting input of amplifier 3, with the same voltage range as -IN (-Vs -0.3V to +Vs +0.3V). |
| 11 | -Vs | power_in | Negative power supply or ground; if not connected to ground, bypass with a 0.1µF capacitor placed close to the part. |
| 12 | +IN4 | input | Non-inverting input of amplifier 4, with the same voltage range as -IN (-Vs -0.3V to +Vs +0.3V). |
| 13 | -IN4 | input | Inverting input of amplifier 4; voltage range can go from -Vs -0.3V to +Vs +0.3V. |
| 14 | OUT4 | output | Output of amplifier 4, whose voltage range extends to within millivolts of each supply rail. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | COSINE |
| Package | TSSOP-14 |
| Category | Amplifiers/Comparators |
| Pins | 14 |

## CAD (KiCad official)

- Symbol: `COS8554TRA`
- Footprint: `Package_SO:TSSOP-14_4.4x5mm_P0.65mm`
- 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files: `cos8554tra-etched.step` / `cos8554tra-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cos8554tra.step` / `cos8554tra.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/8757788513456660480) (12 pp, sha256 `845c61f20f164396`, 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/cos8554tra-datasheet.pdf)