# ADC121S021CIMF

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

ADC121S021CIMF 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 supply pin requiring 2.7-V to 5.25-V source with 1-µF and 0.1-µF bypass capacitors within 1 cm of pin. |
| 2 | GND | power_in | Ground return for supply and signals. |
| 3 | VIN | power_in | Analog input signal ranging from 0 V to VA. |
| 4 | SCLK | input | Digital clock input directly controlling conversion and readout processes with frequency range 0.025-20 MHz. |
| 5 | SDATA | tri_state | Digital data output with conversion samples clocked on falling edges of SCLK; enters tri-state after 16th SCLK edge or at rising edge of CS. |
| 6 | CS | input | Chip select input; falling edge initiates conversion process and moves device to hold mode. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `ADC121S021CIMF`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `adc121s021cimf-etched.step` / `adc121s021cimf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `adc121s021cimf.step` / `adc121s021cimf.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/adc121s021) (28 pp, sha256 `1a6551b2f86f9df4`, 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/adc121s021cimf-datasheet.pdf)