# TLC271MDR

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

TLC271MDR 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 | OFFSET N1 | passive | Offset null pin 1 for input offset voltage adjustment. |
| 2 | IN- | input | Inverting input of the operational amplifier. |
| 3 | IN+ | input | Non-inverting input of the operational amplifier. |
| 4 | GND | power_in | Ground / negative supply pin for single-supply operation. |
| 5 | OFFSET N2 | passive | Offset null pin 2 for input offset voltage adjustment. |
| 6 | OUT | output | Amplifier output; output voltage range includes the negative rail. |
| 7 | VDD | power_in | Positive supply; M-suffix specified from 5 V to 16 V over -55°C to 125°C. |
| 8 | BIAS SELECT | input | Bias-select input that sets the high, medium or low bias mode, trading power dissipation against ac performance. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TLC271MDR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tlc271mdr-etched.step` / `tlc271mdr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tlc271mdr.step` / `tlc271mdr.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/tlc271a) (86 pp, sha256 `462161034a481a4b`, 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/tlc271mdr-datasheet.pdf)