# OPA4703UA

**Texas Instruments** · Operational Amplifier · SOIC-14

OPA4703UA from Texas Instruments, in a SOIC-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 | OUT A | output | Output of amplifier A, rated for ±10 mA output current (|VS-VOUT| < 1V) with continuous short-circuit protection, one amplifier per package. |
| 2 | -In A | input | Inverting input of amplifier A; input terminals are diode-clamped to the supply rails, so signals more than 0.3V beyond the rails must be current-limited to 10 mA or less. |
| 3 | +IN A | input | Non-inverting input of amplifier A; the common-mode voltage range extends 0.3V beyond each rail, from (V-) - 0.3V to (V+) + 0.3V. |
| 4 | V+ | power_in | Positive supply; single supply 4V to 12V or dual supplies ±2V to ±6V, with an absolute maximum V+ to V- of 13.2V. |
| 5 | +IN B | input | Non-inverting input of amplifier B; the common-mode voltage range extends 0.3V beyond each rail, from (V-) - 0.3V to (V+) + 0.3V. |
| 6 | -In B | input | Inverting input of amplifier B; input terminals are diode-clamped to the supply rails, so signals more than 0.3V beyond the rails must be current-limited to 10 mA or less. |
| 7 | OUT B | output | Output of amplifier B, rated for ±10 mA output current (|VS-VOUT| < 1V) with continuous short-circuit protection, one amplifier per package. |
| 8 | OUT C | output | Output of amplifier C, rated for ±10 mA output current (|VS-VOUT| < 1V) with continuous short-circuit protection, one amplifier per package. |
| 9 | -In C | input | Inverting input of amplifier C; input terminals are diode-clamped to the supply rails, so signals more than 0.3V beyond the rails must be current-limited to 10 mA or less. |
| 10 | +IN C | input | Non-inverting input of amplifier C; the common-mode voltage range extends 0.3V beyond each rail, from (V-) - 0.3V to (V+) + 0.3V. |
| 11 | V- | power_in | Negative supply rail (V-); the absolute maximum V+ to V- is 13.2V and the specified dual-supply range is ±2V to ±6V. |
| 12 | +IN D | input | Non-inverting input of amplifier D; the common-mode voltage range extends 0.3V beyond each rail, from (V-) - 0.3V to (V+) + 0.3V. |
| 13 | -In D | input | Inverting input of amplifier D; input terminals are diode-clamped to the supply rails, so signals more than 0.3V beyond the rails must be current-limited to 10 mA or less. |
| 14 | OUT D | output | Output of amplifier D, rated for ±10 mA output current (|VS-VOUT| < 1V) with continuous short-circuit protection, one amplifier per package. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Amplifiers/Comparators |
| Pins | 14 |

## CAD (KiCad official)

- Symbol: `OPA4703UA`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files: `opa4703ua-etched.step` / `opa4703ua-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa4703ua.step` / `opa4703ua.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/opa703) (37 pp, sha256 `99e4c54a94dcab23`, retrieved 2026-10-08, 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/opa4703ua-datasheet.pdf)