# TL031CDR

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

TL031CDR 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 | Not connected. |
| 2 | IN- | input | Inverting input; the input voltage must not exceed the supply magnitude or 15 V, whichever is smaller, and the input current is limited to ±1 mA per input (absolute maximum ratings). |
| 3 | IN+ | input | Non-inverting input; the same input voltage limit (supply magnitude or 15 V, whichever is smaller) and ±1 mA input current limit apply as for IN-. |
| 4 | VCC- | power_in | Negative power supply; absolute maximum is -18 V and recommended operation is ±5 V to ±15 V. |
| 5 | NC | unconnected | Not connected. |
| 6 | OUT | output | Output; maximum output current is ±40 mA per output, and the output may be shorted to either supply, although prolonged short circuits at higher supply voltages can cause overheating and eventual destruction. |
| 7 | VCC+ | power_in | Positive power supply; absolute maximum is 18 V and recommended operation is ±5 V to ±15 V. |
| 8 | NC | unconnected | Not connected. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TL031CDR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tl031cdr-etched.step` / `tl031cdr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tl031cdr.step` / `tl031cdr.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/tl034a) (51 pp, sha256 `0193dd09165051c0`, retrieved 2026-10-11, 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/tl031cdr-datasheet.pdf)