# LM2903MS08ARDQ

**GR** · Comparators · MSOP-8

LM2903MS08ARDQ from GR, 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 | Output of comparator 1, which is an open-drain output so the logic-high level is set by an external pull-up and comparators can be wired-AND. |
| 2 | IN1- | input | Negative input of comparator 1; the differential input voltage range is stated as ±VCC. |
| 3 | IN1+ | input | Positive input of comparator 1; the differential input voltage range is stated as ±VCC. |
| 4 | GND | power_in | Ground reference pin; the datasheet states that all voltage values except differential voltages are referenced to network ground. |
| 5 | IN2+ | input | Positive input of comparator 2; the differential input voltage range is stated as ±VCC. |
| 6 | IN2- | input | Negative input of comparator 2; the differential input voltage range is stated as ±VCC. |
| 7 | OUT2 | output | Output of comparator 2, which is an open-drain output so the logic-high level is set by an external pull-up and comparators can be wired-AND. |
| 8 | VCC | power_in | Power supply pin; the datasheet states a single supply range of 2 V to 32 V (dual supply ±16 V). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | GR |
| Package | MSOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `LM2903MS08ARDQ`
- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`
- 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files: `lm2903ms08ardq-etched.step` / `lm2903ms08ardq-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2903ms08ardq.step` / `lm2903ms08ardq.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [GR datasheet](docs/lm2903ms08ardq-datasheet.pdf) (7 pp, sha256 `cdf7d7ff43cbaca3`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/lm2903ms08ardq-datasheet.pdf)