# ADS1146IPWR

**Texas Instruments** · Analog To Digital Converters (ADC) · TSSOP-16

ADS1146IPWR from Texas Instruments, in a TSSOP-16. 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 | DVDD | power_in | Digital power supply; connect a 0.1-µF capacitor to DGND |
| 2 | DGND | power_in | Digital ground |
| 3 | CLK | input | External clock input; tie to DGND to activate the internal oscillator |
| 4 | RESET | input | Reset (active low) |
| 5 | REFP | input | Positive external reference input |
| 6 | REFN | input | Negative external reference input |
| 7 | AINP | input | Positive analog input |
| 8 | AINN | input | Negative analog input |
| 9 | AVSS | power_in | Negative analog power supply |
| 10 | AVDD | power_in | Positive analog power supply; connect a 0.1-µF capacitor to AVSS |
| 11 | START | input | Conversion start |
| 12 | CS | input | Chip select (active low) |
| 13 | DRDY | output | Data ready (active low) |
| 14 | DOUT/DRDY | tri_state | Serial data output or data out combined with data ready; enters high-impedance state when CS is high |
| 15 | DIN | input | Serial data input |
| 16 | SCLK | input | Serial clock input |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16 |
| Category | Data Acquisition |
| Pins | 16 |

## CAD (KiCad official)

- Symbol: `ADS1146IPWR`
- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`
- 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files: `ads1146ipwr-etched.step` / `ads1146ipwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads1146ipwr.step` / `ads1146ipwr.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/ads1146) (100 pp, sha256 `45e0fc75c85fcf9e`, retrieved 2026-10-03, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/ads1146ipwr-datasheet.pdf)