# OPA2347UA

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

OPA2347UA from UMW, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OUTA | output | Amplifier A output. Rail-to-rail output stage; swings within 5mV of the supply rails with a 100kΩ load. Short-circuit current ±17mA typ. |
| 2 | -IN A | input | Amplifier A inverting input. Rail-to-rail CMOS input; common-mode range extends from (V-)-0.2V to (V+)+0.2V. Input bias current ±0.5pA typ. |
| 3 | +IN A | input | Amplifier A non-inverting input. Rail-to-rail CMOS input; common-mode range extends from (V-)-0.2V to (V+)+0.2V. |
| 4 | V- | power_in | Negative supply / ground. Total supply (V+)-(V-) between 2.3V (min operating) and 5.5V; absolute max 7.5V. Quiescent current 20µA typ per amplifier. |
| 5 | +IN B | input | Amplifier B non-inverting input. Rail-to-rail CMOS input; common-mode range extends from (V-)-0.2V to (V+)+0.2V. |
| 6 | -IN B | input | Amplifier B inverting input. Rail-to-rail CMOS input; common-mode range extends from (V-)-0.2V to (V+)+0.2V. |
| 7 | OUTB | output | Amplifier B output. Rail-to-rail output stage; swings within 5mV of the rails with a 100kΩ load. Short-circuit current ±17mA typ. |
| 8 | V+ | power_in | Positive supply. Single-supply operation 2.3V to 5.5V (dual supply supported). Absolute max (V+)-(V-) = 7.5V. Decouple locally with a ceramic capacitor. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOP-8 |
| Category | Op-amp/Cmp |
| Pins | 8 |

## Ordering variants

Same part, different packaging or reel option.

- `OPA2347UA`

## CAD (KiCad official)

- Symbol: `OPA2347UA`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `opa2347ua-etched.step` / `opa2347ua-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa2347ua.step` / `opa2347ua.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [UMW datasheet](docs/opa2347ua-datasheet.pdf) (14 pp, sha256 `acb5619613b98db7`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/opa2347ua-datasheet.pdf)