# TLC27L1CDR

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

TLC27L1CDR 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 | input | On legacy silicon this is the IN- offset-null (bias-select) pin; on newer silicon it is NC with no internal connection, so the datasheet's pin table gives no further limit for it. |
| 2 | IN- | input | Inverting input of the operational amplifier. |
| 3 | IN+ | input | Non-inverting input of the operational amplifier. |
| 4 | GND | power_in | Ground, or the negative (lowest) supply rail. |
| 5 | OFFSET N2 | input | On legacy silicon this is the IN+ offset-null (bias-select) pin; on newer silicon it is NC with no internal connection, so the datasheet's pin table gives no further limit for it. |
| 6 | OUT | output | Amplifier output. |
| 7 | VDD | power_in | Positive (highest) supply rail; the recommended supply range is 3 V to 16 V for the C suffix (0°C to 70°C). |
| 8 | VDD | power_in | Positive (highest) supply rail, internally bonded together with pin 7; the recommended supply range is 3 V to 16 V for the C suffix (0°C to 70°C). |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TLC27L1CDR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tlc27l1cdr-etched.step` / `tlc27l1cdr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tlc27l1cdr.step` / `tlc27l1cdr.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/tlc27l1) (35 pp, sha256 `568a76a6886bfa01`, 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/tlc27l1cdr-datasheet.pdf)