# COS2333MRB

**COSINE** · Precision Op Amps · MSOP-8

COS2333MRB from COSINE, in a MSOP-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 | Amplifier 1 output; the output voltage range extends to within millivolts of each supply rail. |
| 2 | -IN1 | input | Amplifier 1 inverting input; voltage range can go from -Vs -0.3V to +Vs + 0.3V. |
| 3 | +IN1 | input | Amplifier 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 as close to the part as possible. |
| 5 | +IN2 | input | Amplifier 2 non-inverting input; same voltage range as -IN (-Vs -0.3V to +Vs + 0.3V). |
| 6 | -IN2 | input | Amplifier 2 inverting input; voltage range can go from -Vs -0.3V to +Vs + 0.3V. |
| 7 | OUT2 | output | Amplifier 2 output; the output voltage range extends to within millivolts of each supply rail. |
| 8 | +Vs | power_in | Positive power supply (1.8V to 5.5V); place a 0.1μF bypass capacitor as close to the part as possible. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | COSINE |
| Package | MSOP-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 (COS2333B/COS4333B variant) | VOS |  |  | 100 | μV | COS2333B/COS4333B; table header: +VS=+5V, VCM=VS/2, TA=+25°C | 4 |
| Input Offset Voltage Drift | ΔVOS/ΔT |  | 0.01 | 0.05 | μV/°C | -40 to 125°C | 4 |
| Input Bias Current | IB | -100 | 25 | 100 | pA |  | 4 |
| Input Offset Current | IOS | -70 | 10 | 70 | pA |  | 4 |
| Common-Mode Voltage Range | VCM | -0.1 |  | 5.6 | V | VS = 5.5V | 4 |
| Common-Mode Rejection Ratio | CMRR | 120 |  |  | dB | VCM =0.1V to 4.9V | 4 |
| Open-Loop Voltage Gain | AOL | 145 |  |  | dB | VO=0.2V to 4.8V | 4 |
| Output Voltage Swing from Rail |  |  |  | 5 | mV | RL=100kΩ | 4 |
| Output Voltage Swing from Rail |  |  |  | 15 | mV | RL=10kΩ | 4 |
| Short-Circuit Current, Sourcing | ISR | 7 |  |  | mA | Sourcing | 4 |
| Short-Circuit Current, Sinking | ISK | -7 |  |  | mA | Sinking | 4 |
| Operating Voltage Range |  | 1.8 |  | 5.5 | V |  | 4 |
| Power Supply Rejection Ratio | PSRR | 80 | 100 |  | dB | VS = 1.8V to 5.5V | 4 |
| Quiescent Current per Amplifier | IQ |  | 18 |  | μA | VS = 1.8V | 4 |
| Gain Bandwidth Product | GBWP |  | 350 |  | kHz | G=+1 | 4 |
| Slew Rate | SR |  | 0.2 |  | V/μs | G = +1, 2V Output Step | 5 |
| Voltage Noise Density | en |  | 70 |  | nV/√Hz | f=1kHz | 5 |
| Power Supply Voltage (Absolute Maximum) |  |  |  | 6 | V | Power Supply: +Vs to -Vs | 3 |
| Input Current |  |  |  | 10 | mA | Input signals beyond supply rails by more than 0.5V should be current-limited | 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) |  | 1.8 |  | 5.5 | V |  | 3 |
| Operating Ambient Temperature (recommended) |  | -40 |  | 85 | °C |  | 3 |
| Package Thermal Resistance (MSOP8) |  |  | 206 |  | °C/W | MSOP8 package | 3 |

## CAD (KiCad official)

- Symbol: `COS2333MRB`
- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`
- 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files: `cos2333mrb-etched.step` / `cos2333mrb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cos2333mrb.step` / `cos2333mrb.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/8556904882206253056) (12 pp, sha256 `c3ad960030bd3dfd`, retrieved 2026-10-19, 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/cos2333mrb-datasheet.pdf)