# ADC121S051CIMFX

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

ADC121S051CIMFX from Texas Instruments, in a SOT-23-6. 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 | Positive analog supply pin, to be connected to a quiet +2.7V to +5.25V source and bypassed to GND with a 1 µF capacitor and a 0.1 µF monolithic capacitor located within 1 cm of the power pin. |
| 2 | GND | power_in | Ground return for the supply and signals. |
| 3 | VIN | power_in | Analog input that can range from 0V to VA. |
| 4 | SCLK | input | Digital clock input that directly controls the conversion and readout processes. |
| 5 | SDATA | output | Digital data output; the datasheet's pin table gives no separate electrical limit for this pin. |
| 6 | CS | input | Chip select; a conversion process begins on the falling edge of CS. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `ADC121S051CIMFX`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `adc121s051cimfx-etched.step` / `adc121s051cimfx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `adc121s051cimfx.step` / `adc121s051cimfx.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/adc121s051) (26 pp, sha256 `f0f4b3efcd2b6363`, retrieved 2026-10-11, 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/adc121s051cimfx-datasheet.pdf)