# THS4140ID

**Texas Instruments** · Differential Amplifiers · SOIC-8

THS4140ID 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; input voltage must stay within ±VCC, and the differential input voltage is limited to ±6 V (absolute maximum). |
| 2 | VOCM | input | Output common-mode voltage control input; the datasheet defines the output common-mode voltage VOC as equal to VOCM. |
| 3 | VCC+ | power_in | Positive power supply; the datasheet allows 5 V single-supply up to ±15 V dual-supply operation, with VCC− to VCC+ absolute maximum of ±16.5 V. |
| 4 | VOUT+ | output | Non-inverting differential output; the differential output voltage is defined as VOD = VO+ − VO−. |
| 5 | VOUT− | output | Inverting differential output, equal in magnitude and opposite in sign to VOUT+ for a given input. |
| 6 | VCC− | power_in | Negative power supply; for dual-supply operation it is paired with VCC+ with a total absolute maximum of ±16.5 V. |
| 7 | PD | input | Shutdown/power-down pin on the THS4140 (pin 7 is NC on the THS4141); the datasheet specifies ICC(SD) = 880 µA in shutdown mode but does not give the control logic levels in the pages provided. |
| 8 | VIN+ | power_in | Non-inverting input of the fully differential amplifier; input voltage must stay within ±VCC, and the differential input voltage is limited to ±6 V (absolute maximum). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `THS4140ID`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `ths4140id-etched.step` / `ths4140id-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ths4140id.step` / `ths4140id.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/ths4140.pdf) (39 pp, sha256 `3204efc202b29e66`, 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/ths4140id-datasheet.pdf)