# SGM8249-2XS8G

**SGMICRO** · Operational Amplifier · SOIC-8

SGM8249-2XS8G from SGMICRO, in a SOIC-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 | OUTA | output | Output of amplifier A, which provides rail-to-rail output operation. |
| 2 | -INA | input | Inverting input of amplifier A; the input voltage range is -VS to (+VS) + 0.1V per the absolute maximum ratings. |
| 3 | +INA | input | Non-inverting input of amplifier A; the common-mode input voltage range is (-VS) to (+VS) - 1.5V. |
| 4 | -VS | power_in | Negative power supply; operation is 4.5V to 36V single supply or ±2.25V to ±18V dual supplies. |
| 5 | +INB | input | Non-inverting input of amplifier B; the common-mode input voltage range is (-VS) to (+VS) - 1.5V. |
| 6 | -INB | input | Inverting input of amplifier B; the input voltage range is -VS to (+VS) + 0.1V per the absolute maximum ratings. |
| 7 | OUTB | output | Output of amplifier B, which provides rail-to-rail output operation. |
| 8 | +VS | power_in | Positive power supply; the absolute maximum supply voltage is 40V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SGMICRO |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `SGM8249-2XS8G`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `sgm8249-2xs8g-etched.step` / `sgm8249-2xs8g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sgm8249-2xs8g.step` / `sgm8249-2xs8g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [SGMICRO datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589039919565557760) (13 pp, sha256 `951b97ed489bbee7`, 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/sgm8249-2xs8g-datasheet.pdf)