# OPA140AIDGKR

**Texas Instruments** · FET Input Amplifiers · MSOP-8

OPA140AIDGKR from Texas Instruments, in a MSOP-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; this pin can be left floating. |
| 2 | -IN | input | Inverting input of the amplifier; signal input pins are limited to (V-) - 0.5 V to (V+) + 0.5 V and ±10 mA input current. |
| 3 | +IN | input | Noninverting input of the amplifier; signal input pins are limited to (V-) - 0.5 V to (V+) + 0.5 V and ±10 mA input current, and the input range includes the V- supply. |
| 4 | V- | power_in | Negative (lowest) power supply; the device runs from 4.5 V to 36 V single-supply or ±2.25 V to ±18 V dual-supply. |
| 5 | NC | unconnected | No internal connection; this pin can be left floating. |
| 6 | OUT | output | Amplifier output, which is continuously short-circuit protected per the absolute maximum ratings. |
| 7 | V+ | power_in | Positive (highest) power supply; the absolute maximum single-supply voltage is 40 V and the dual-supply limit is ±20 V. |
| 8 | NC | unconnected | No internal connection; this pin can be left floating. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `OPA140AIDGKR`
- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`
- 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files: `opa140aidgkr-etched.step` / `opa140aidgkr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `opa140aidgkr.step` / `opa140aidgkr.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/opa2140) (57 pp, sha256 `f02a9615dc1b5780`, retrieved 2026-10-08, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/opa140aidgkr-datasheet.pdf)