# COS324TR

**COSINE** · Operational Amplifier · TSSOP-14

COS324TR from COSINE, in a TSSOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OUTA | output | Output of amplifier A. Rail-to-rail output; voltage range extends to within millivolts of each supply rail (10mV with RL=10kΩ). |
| 2 | -INA | input | Inverting input of amplifier A. Input voltage range from -Vs -0.3V to +Vs - 1V. Input terminals are diode-clamped to the supply rails. |
| 3 | +INA | input | Non-inverting input of amplifier A. Input voltage range from -Vs -0.3V to +Vs - 1V. |
| 4 | +Vs | power_in | Positive power supply, 2.1V to 5.5V (single supply) or +1.05V to +2.75V (dual supply). Bypass with 0.1μF ceramic capacitor placed close to the pin. |
| 5 | +INB | input | Non-inverting input of amplifier B. Input voltage range from -Vs -0.3V to +Vs - 1V. |
| 6 | -INB | input | Inverting input of amplifier B. Input voltage range from -Vs -0.3V to +Vs - 1V. |
| 7 | OUTB | output | Output of amplifier B. Rail-to-rail output; voltage range extends to within millivolts of each supply rail. |
| 8 | OUTC | output | Output of amplifier C. Rail-to-rail output; voltage range extends to within millivolts of each supply rail. |
| 9 | -INC | input | Inverting input of amplifier C. Input voltage range from -Vs -0.3V to +Vs - 1V. |
| 10 | +INC | input | Non-inverting input of amplifier C. Input voltage range from -Vs -0.3V to +Vs - 1V. |
| 11 | -Vs | power_in | Negative power supply or ground. For single-supply operation tie to GND; for dual supplies bypass to ground with a separate 0.1μF ceramic capacitor as close to the pin as possible. |
| 12 | +IND | input | Non-inverting input of amplifier D. Input voltage range from -Vs -0.3V to +Vs - 1V. |
| 13 | -IND | input | Inverting input of amplifier D. Input voltage range from -Vs -0.3V to +Vs - 1V. |
| 14 | OUTD | output | Output of amplifier D. Rail-to-rail output; voltage range extends to within millivolts of each supply rail. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | COSINE |
| Package | TSSOP-14 |
| Category | Op-amp/Cmp |
| Pins | 14 |

## Ordering variants

- `COS324TR`
- `COS324TRCOS324SR`

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Power Supply: +Vs to -Vs |  |  |  | 6 | V |  | 3 |
| Input Current |  |  |  | 10 | mA | Note 2: input beyond supply rails by more than 0.5V, 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 |
| DC Supply Voltage |  | 2.1 |  | 5.5 | V |  | 3 |
| Operating Ambient Temperature |  | -40 |  | 85 | °C |  | 3 |
| Package Thermal Resistance, junction-to-ambient (TSSOP14) | RθJA |  | 105 |  | °C/W | TSSOP14 package | 3 |
| Input Offset Voltage | VOS |  | 1 | 5 | mV |  | 4 |
| Input Offset Voltage Drift | ΔVOS/ΔT |  | 5 |  | μV/°C | -40 to 125°C | 4 |
| Input Bias Current | IB |  | 2.5 |  | pA |  | 4 |
| Input Offset Current | IOS |  | 2.5 |  | pA |  | 4 |
| Common-Mode Voltage Range | VCM | -0.1 |  | 4.5 | V | VS = 5.5V | 4 |
| Common-Mode Rejection Ratio | CMRR |  | 125 |  | dB | VCM =0.1V to 4.5V | 4 |
| Open-Loop Voltage Gain | AOL |  | 120 |  | dB | VO=0.2V to 4.5V | 4 |
| Output Voltage Swing from Rail |  |  |  | 1 | mV | RL=100kΩ | 4 |
| Output Voltage Swing from Rail |  |  |  | 10 | mV | RL=10kΩ | 4 |
| Output Voltage Swing from Rail |  |  |  | 40 | mV | RL=2kΩ | 4 |
| Short-Circuit Current, sourcing | ISR |  | 45 |  | mA | Sourcing | 4 |
| Short-Circuit Current, sinking | ISK |  | 50 |  | mA | Sinking | 4 |
| Operating Voltage Range |  | 2.1 |  | 5.5 | V |  | 4 |
| Power Supply Rejection Ratio | PSRR | 80 | 100 |  | dB | VS = +2.1V to +5.5V | 4 |
| Quiescent Current per Amplifier | IQ |  | 85 |  | μA |  | 4 |
| Gain Bandwidth Product | GBWP |  | 1.5 |  | MHz | G=+1 | 4 |
| Slew Rate | SR |  | 1 |  | V/μs | G = +1 , 2V Output Step | 4 |
| Voltage Noise Density | en |  | 28 |  | nV/√Hz | f=1kHz | 4 |

## CAD (KiCad official)

- Symbol: `COS324TR`
- Footprint: `Package_SO:TSSOP-14_4.4x5mm_P0.65mm`
- 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files: `cos324tr-etched.step` / `cos324tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cos324tr.step` / `cos324tr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [COSINE datasheet](docs/cos324tr-datasheet.pdf) (None pp, sha256 `7499c4d7cd32eb92`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/cos324tr-datasheet.pdf)