# AD8628ARZ

**UMW** · Operational Amplifier · SOP-8

AD8628ARZ from UMW, in a SOP-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 | NC | unconnected | Marked NC in the SOP-8 pin configuration, so no electrical function is assigned to this pin. |
| 2 | -IN | input | Inverting input; the common-mode input range is 0 V to 5 V at VS = 5 V and 0 V to 2.7 V at VS = 2.7 V, and series resistors should limit input current to less than 5 mA if the input can exceed a supply rail. |
| 3 | +IN | input | Non-inverting input; the common-mode input range is 0 V to 5 V at VS = 5 V and 0 V to 2.7 V at VS = 2.7 V, and series resistors should limit input current to less than 5 mA if the input can exceed a supply rail. |
| 4 | V- | power_in | Negative supply rail; the part is specified for 2.7 V to 5 V single-supply or ±1.35 V to ±2.5 V dual-supply operation. |
| 5 | NC | unconnected | Marked NC in the SOP-8 pin configuration, so no electrical function is assigned to this pin. |
| 6 | OUT | output | Amplifier output with rail-to-rail swing; output current is specified at ±30 mA (typical) at VS = 5 V. |
| 7 | V+ | power_in | Positive supply rail; the device is fully specified from 2.7 V to 5 V single supply, with PSRR specified for VS = 2.7 V to 5.5 V. |
| 8 | NC | unconnected | Marked NC in the SOP-8 pin configuration, so no electrical function is assigned to this pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `AD8628ARZ`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `ad8628arz-etched.step` / `ad8628arz-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ad8628arz.step` / `ad8628arz.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [UMW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603503007858913280) (18 pp, sha256 `339cce28f46fddfd`, 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/ad8628arz-datasheet.pdf)