# ADS7816UC

**Texas Instruments** · Analog To Digital Converters (ADC) · SOIC-8

ADS7816UC 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 | VREF | power_in | Reference input; the reference voltage can be varied from 0.1V to 5V, and the full-scale input span is 0 to VREF. |
| 2 | +In | input | Non-inverting analog input; the absolute input voltage is limited to -0.2V to VCC+0.2V. |
| 3 | -In | input | Inverting analog input, which should be connected to ground or to the remote ground sense point; its absolute input voltage is limited to -0.2V to +0.2V. |
| 4 | GND | power_in | Ground reference for the device. |
| 5 | CS/SHDN | input | Chip select, active LOW; a HIGH level puts the device into shutdown mode. |
| 6 | DOUT | output | Serial data output of 12 data bits, valid on the falling edge of DCLOCK; the output is enabled by the second DCLOCK pulse after the falling edge of CS, and after one null bit the data is valid for the next 12 edges. |
| 7 | DCLOCK | input | Data clock that synchronizes the serial data transfer and determines the conversion speed. |
| 8 | +VCC | power_in | Power supply; specified performance is for 4.50V to 5.25V, with an absolute maximum of +6V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Data Acquisition |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `ADS7816UC`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `ads7816uc-etched.step` / `ads7816uc-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads7816uc.step` / `ads7816uc.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/ads7816) (26 pp, sha256 `d9a0852dc8aa8569`, retrieved 2026-10-12, 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/ads7816uc-datasheet.pdf)