# ADS7829IDRBR

**Texas Instruments** · Analog To Digital Converters (ADC) · SON-8-EP(3x3)

ADS7829IDRBR from Texas Instruments, in a SON-8-EP(3x3). 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 range is 0.05 V to VCC - 0.2 V for 2.7 V ≤ VCC ≤ 3.6 V. |
| 2 | +In | input | Noninverting analog input; the absolute input range is -0.2 V to VCC + 0.2 V. |
| 3 | -In | input | Inverting analog input, to be connected to ground or to a remote ground sense point; the absolute input range is -0.2 V to 1.0 V. |
| 4 | GND | power_in | Ground reference for the device. |
| 5 | CS/SHDN | input | Chip select when LOW and shutdown mode when HIGH. |
| 6 | DOUT | output | Serial output carrying a 12-bit data word that is valid on the falling edge of DCLOCK; the serial output is enabled by the second clock pulse after the falling edge of CS, followed by one null bit and then 12 data edges. |
| 7 | DCLOCK | input | Data clock that synchronizes the serial data transfer and determines the conversion speed. |
| 8 | +VCC | power_in | Power supply; operating range is 2.7 V to 3.6 V, with reduced performance down to 2.0 V and operation to 5.25 V stated in the electrical specifications. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SON-8-EP(3x3) |
| Category | Data Acquisition |
| Pins | 9 |

## CAD (KiCad official)

- Symbol: `ADS7829IDRBR`
- Footprint: `Package_SON:WSON-8-1EP_3x3mm_P0.5mm_EP1.6x2.0mm`
- 3D model: SON-8-EP(3x3) (KiCad packages3D, STEP)
- 3D model files: `ads7829idrbr-etched.step` / `ads7829idrbr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads7829idrbr.step` / `ads7829idrbr.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/ads7829) (27 pp, sha256 `b4b976821650d89e`, retrieved 2026-10-08, 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/ads7829idrbr-datasheet.pdf)