# AD8544ARZ

**UMW** · Operational Amplifier · SOP-14

AD8544ARZ from UMW, in a SOP-14. 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. |
| 2 | -INA | input | Inverting input of amplifier A, voltage range from (VS- - 0.2V) to (VS+ + 0.2V). |
| 3 | +INA | input | Non-inverting input of amplifier A, with the same voltage range as -IN. |
| 4 | +VS | power_in | Positive supply of 2.3V to 5.5V between VS+ and VS-, with a 0.1µF bypass capacitor placed close to the part. |
| 5 | +INB | input | Non-inverting input of amplifier B, with the same voltage range as -IN. |
| 6 | -INB | input | Inverting input of amplifier B, voltage range from (VS- - 0.2V) to (VS+ + 0.2V). |
| 7 | OUTB | output | Output of amplifier B. |
| 8 | OUTC | output | Output of amplifier C. |
| 9 | -INC | input | Inverting input of amplifier C, voltage range from (VS- - 0.2V) to (VS+ + 0.2V). |
| 10 | +INC | input | Non-inverting input of amplifier C, with the same voltage range as -IN. |
| 11 | -VS | power_in | Negative supply, normally tied to ground, with a 0.1µF bypass capacitor if not grounded. |
| 12 | +IND | input | Non-inverting input of amplifier D, with the same voltage range as -IN. |
| 13 | -IND | input | Inverting input of amplifier D, voltage range from (VS- - 0.2V) to (VS+ + 0.2V). |
| 14 | OUTD | output | Output of amplifier D. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOP-14 |
| Category | Amplifiers/Comparators |
| Pins | 14 |

## CAD (KiCad official)

- Symbol: `AD8544ARZ`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOP-14 (KiCad packages3D, STEP)
- 3D model files: `ad8544arz-etched.step` / `ad8544arz-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ad8544arz.step` / `ad8544arz.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/8755873847608791040) (24 pp, sha256 `0c724036912e042b`, retrieved 2026-10-09, 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/ad8544arz-datasheet.pdf)