# TLC271CPSR

**Texas Instruments** · Operational Amplifier · SO-8-208mil

TLC271CPSR from Texas Instruments, in a SO-8-208mil. 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 | Input offset null terminal; a 25-kΩ potentiometer between N1 and N2 trims input offset voltage. |
| 2 | IN- | input | Inverting input; input voltage range -0.3 V to VDD absolute maximum. |
| 3 | IN+ | input | Non-inverting input; input voltage range -0.3 V to VDD absolute maximum. |
| 4 | GND | power_in | Ground / negative supply rail. |
| 5 | OFFSET N2 | passive | Input offset null terminal; a 25-kΩ potentiometer between N1 and N2 trims input offset voltage. |
| 6 | OUT | output | Amplifier output; output current up to ±30 mA absolute maximum. |
| 7 | VDD | power_in | Positive supply, 3 V to 16 V for C-suffix, 18 V absolute maximum. |
| 8 | BIAS SELECT | input | Selects bias mode: GND for high, 1 V to VDD-1 V (midpoint) for medium, VDD for low bias in single-supply operation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SO-8-208mil |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `TLC271CPSR`
- Footprint: `Package_SO:SO-8_3.9x4.9mm_P1.27mm`
- 3D model: SO-8-208mil (KiCad packages3D, STEP)
- 3D model files: `tlc271cpsr-etched.step` / `tlc271cpsr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tlc271cpsr.step` / `tlc271cpsr.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 2026-10-12, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/tlc271cpsr-datasheet.pdf)