# AD8542ARUZ

**UMW** · Operational Amplifier · TSSOP-8

AD8542ARUZ from UMW, in a TSSOP-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 | The output of the amplifier A. |
| 2 | -INA | input | Inverting input of amplifier A; the voltage range can go from (VS- - 0.2V) to (VS+ + 0.2V). |
| 3 | +INA | input | Non-inverting input of amplifier A with the same voltage range as -IN, from (VS- - 0.2V) to (VS+ + 0.2V). |
| 4 | -VS | power_in | Negative power supply, normally tied to ground; if not tied to ground, VS+ to VS- must be 2.7V to 5.5V and it should be bypassed with 0.1μF close to the part. |
| 5 | +INB | input | Non-inverting input of amplifier B with the same voltage range as -IN, from (VS- - 0.2V) to (VS+ + 0.2V). |
| 6 | -INB | input | Inverting input of amplifier B; the voltage range can go from (VS- - 0.2V) to (VS+ + 0.2V). |
| 7 | OUTB | output | The output of the amplifier B. |
| 8 | +VS | power_in | Positive power supply from 2.3V to 5.5V (split supplies allowed with VS+ to VS- between 2.3V and 5.5V), bypassed with a 0.1μF capacitor as close to the part as possible. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `AD8542ARUZ`
- Footprint: `Package_SO:TSSOP-8_3x3mm_P0.65mm`
- 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `ad8542aruz-etched.step` / `ad8542aruz-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ad8542aruz.step` / `ad8542aruz.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/8755873852901462016) (24 pp, sha256 `0c724036912e042b`, 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/ad8542aruz-datasheet.pdf)