# THS3111CD

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

THS3111CD 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 | NC | unconnected | No internal connection; leave unconnected on the THS3111 SOIC-8 (D) package. |
| 2 | VIN− | power_in | Inverting input; the input voltage must stay within ±VS and the differential input voltage is limited to ±4 V. |
| 3 | VIN+ | power_in | Noninverting input; the input voltage must stay within ±VS. |
| 4 | VS− | power_in | Negative power supply; supports ±5 V to ±15 V dual supply or 10 V to 30 V single supply, with a maximum VS− to VS+ supply of 33 V. |
| 5 | NC | unconnected | No internal connection; leave unconnected on the THS3111 SOIC-8 (D) package. |
| 6 | VOUT | output | Amplifier output; absolute maximum output current is 300 mA. |
| 7 | VS+ | power_in | Positive power supply; supports ±5 V to ±15 V dual supply or 10 V to 30 V single supply, with a maximum VS− to VS+ supply of 33 V. |
| 8 | NC | unconnected | No internal connection; leave unconnected on the THS3111 SOIC-8 (D) package. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `THS3111CD`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `ths3111cd-etched.step` / `ths3111cd-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ths3111cd.step` / `ths3111cd.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/ths3111) (42 pp, sha256 `5e23f3dcb669543d`, 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/ths3111cd-datasheet.pdf)