# THS4503ID

**Texas Instruments** · Operational Amplifier · SOIC-8

THS4503ID from Texas Instruments, in a SOIC-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 | VIN- | power_in | Inverting input of the fully differential amplifier; differential input voltage is limited to 4 V absolute maximum. |
| 2 | VOCM | input | Output common-mode control input that sets the output common-mode voltage of the amplifier. |
| 3 | VS+ | power_in | Positive power supply; total supply is 4.5 V to 15 V single supply or ±5 V to ±7.5 V dual supply, with 16.5 V absolute maximum. |
| 4 | VOUT+ | output | Non-inverting differential output of the amplifier; output current is limited to 150 mA absolute maximum. |
| 5 | VOUT- | output | Inverting differential output of the amplifier; output current is limited to 150 mA absolute maximum. |
| 6 | VS- | power_in | Negative power supply (ground in single-supply operation); total supply is 4.5 V to 15 V single supply or ±5 V to ±7.5 V dual supply. |
| 7 | NC | unconnected | No connect on the THS4503 (this pin is the PD power-down input on the THS4502). |
| 8 | VIN+ | power_in | Non-inverting input of the fully differential amplifier; differential input voltage is limited to 4 V absolute maximum. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Operational Amplifier/Comparator |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `THS4503ID`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `ths4503id-etched.step` / `ths4503id-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ths4503id.step` / `ths4503id.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/lit/ds/symlink/ths4503.pdf) (52 pp, sha256 `ce3c9e257b14be85`, retrieved 2026-10-08, tier: manufacturer)
- **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/ths4503id-datasheet.pdf)