# ADC121C027CIMK

**Texas Instruments** · Analog To Digital Converters (ADC) · TSOT-23-6L

ADC121C027CIMK from Texas Instruments, in a TSOT-23-6L. 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 | VA | power_in | Power supply and unbuffered reference voltage from +2.7V to +5.5V; must be free of noise and decoupled to GND. |
| 2 | GND | power_in | Ground for all on-chip circuitry. |
| 3 | VIN | power_in | Analog input that can range from GND to VA. |
| 4 | ADR0 | input | Tri-level address selection input that sets bits A0 and A1 of the 7-bit slave address. |
| 5 | SCL | input | Serial clock input used with SDA to control data transfer; open-drain line requiring external pull-up to VA. |
| 6 | SDA | bidirectional | Serial data bi-directional line for clocking data into or out of the 16-bit register; open-drain requiring external pull-up to VA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSOT-23-6L |
| Category | Data Acquisition |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `ADC121C027CIMK`
- Footprint: `Package_TO_SOT_SMD:TSOT-23-6`
- 3D model: TSOT-23-6L (KiCad packages3D, STEP)
- 3D model files: `adc121c027cimk-etched.step` / `adc121c027cimk-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `adc121c027cimk.step` / `adc121c027cimk.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/adc121c027) (47 pp, sha256 `f464ed23e391a581`, retrieved 2026-09-24, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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/adc121c027cimk-datasheet.pdf)