# SGM721XN5

**SGMICRO** · Operational Amplifier · SOT-23-5

SGM721XN5 from SGMICRO, in a SOT-23-5. 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 | OUT | output | Amplifier output, which swings rail-to-rail with heavy loads (0.076 V typ from the rail at RL = 600 Ω, 5 V supply). |
| 2 | -VS | power_in | Negative supply rail; the part operates from 2.1 V to 5.5 V single supply, with absolute maximum supply of 7 V and input common-mode limits of (-VS) - 0.3 V to (+VS) + 0.3 V. |
| 3 | +IN | input | Non-inverting input with rail-to-rail common-mode range of -0.1 V to 5.6 V at VS = 5.5 V, and absolute limits of (-VS) - 0.3 V to (+VS) + 0.3 V. |
| 4 | -IN | input | Inverting input with the same common-mode range as +IN, -0.1 V to 5.6 V at VS = 5.5 V, and absolute limits of (-VS) - 0.3 V to (+VS) + 0.3 V. |
| 5 | +VS | power_in | Positive supply rail; the part operates from 2.1 V to 5.5 V, with absolute maximum supply of 7 V (+VS to -VS). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SGMICRO |
| Package | SOT-23-5 |
| Category | Amplifiers/Comparators |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `SGM721XN5`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `sgm721xn5-etched.step` / `sgm721xn5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sgm721xn5.step` / `sgm721xn5.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/8588920173269434368) (21 pp, sha256 `086b5d868aa6dbac`, 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/sgm721xn5-datasheet.pdf)