# COS324SR

**COSINE** · Operational Amplifier · SOP-14

COS324SR from COSINE, in a SOP-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 | OUTA | output | Output of amplifier A; swings to within millivolts of each supply rail. |
| 2 | -INA | input | Inverting input of amplifier A; voltage range -Vs -0.3V to +Vs - 1V. |
| 3 | +INA | input | Non-inverting input of amplifier A; same voltage range as the inverting input. |
| 4 | +Vs | power_in | Positive power supply (2.1V to 5.5V); bypass with 0.1μF capacitor placed close to the pin. |
| 5 | +INB | input | Non-inverting input of amplifier B; same voltage range as the inverting input. |
| 6 | -INB | input | Inverting input of amplifier B; voltage range -Vs -0.3V to +Vs - 1V. |
| 7 | OUTB | output | Output of amplifier B; swings to within millivolts of each supply rail. |
| 8 | OUTC | output | Output of amplifier C; swings to within millivolts of each supply rail. |
| 9 | -INC | input | Inverting input of amplifier C; voltage range -Vs -0.3V to +Vs - 1V. |
| 10 | +INC | input | Non-inverting input of amplifier C; same voltage range as the inverting input. |
| 11 | -Vs | power_in | Negative power supply or ground; if not grounded, bypass with 0.1μF capacitor close to the pin. |
| 12 | +IND | input | Non-inverting input of amplifier D; same voltage range as the inverting input. |
| 13 | -IND | input | Inverting input of amplifier D; voltage range -Vs -0.3V to +Vs - 1V. |
| 14 | OUTD | output | Output of amplifier D; swings to within millivolts of each supply rail. |

## Key specifications

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

## 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 | VOS |  | 1 | 5 | mV |  | 4 |
| Input Offset Voltage Drift | ΔVOS/ΔT |  |  | 5 | μV/°C | -40 to 125°C | 4 |
| Common-Mode Voltage Range | VCM | -0.1 |  | 4.5 | V | VS = 5.5V | 4 |
| Power Supply Rejection Ratio | PSRR | 80 | 100 |  | dB | VS = +1.8V to +5.5V | 4 |
| Operating Voltage Range |  | 2.1 |  | 5.5 | V |  | 4 |
| DC Supply Voltage |  | 2.1 |  | 5.5 | V |  | 3 |
| Operating ambient temperature | TA | -40 |  | 85 | °C |  | 3 |
| Power Supply: +Vs to -Vs |  |  |  | 6 | V |  | 3 |
| Input Voltage |  | -0.5 |  | 0.5 | V | Relative to supply rails: -Vs -0.5 V to +Vs +0.5 V | 3 |
| Input Current |  |  |  | 10 | mA | Input signals more than 0.5 V beyond supply rails should be current-limited | 3 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 3 |
| Junction Temperature |  |  |  | 150 | °C |  | 3 |
| Operating Temperature Range |  | -40 |  | 125 | °C |  | 3 |
| ESD Susceptibility, HBM |  |  |  | 2000 | V | HBM | 3 |
| Package Thermal Resistance, junction-to-ambient (SOP14) | RθJA |  | 82 |  | °C/W | Junction-to-ambient, SOP-14 package | 3 |

## CAD (KiCad official)

- Symbol: `COS324SR`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOP-14 (KiCad packages3D, STEP)
- 3D model files: `cos324sr-etched.step` / `cos324sr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cos324sr.step` / `cos324sr.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/8588907934315663360) (10 pp, sha256 `9ada596d436550c0`, retrieved 2026-10-18, 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/cos324sr-datasheet.pdf)