# ADS7924IRTET

**Texas Instruments** · Analog To Digital Converters (ADC) · WQFN-16-EP(3x3)

ADS7924IRTET from Texas Instruments, in a WQFN-16-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 | RESET | input | External reset input, active low |
| 2 | INT | output | Interrupt output pin, active low; generated when input voltage exceeds programmed threshold |
| 3 | SCLK | input | I2C serial clock input |
| 4 | SDA | bidirectional | I2C serial data line, open-drain bidirectional |
| 5 | A0 | input | I2C address selection input; ground for slave address 1001000, DVDD for 1001001 |
| 6 | DGND | power_in | Digital ground reference |
| 7 | PWRCON | output | Digital output to control shutdown/power-up of external operational amplifier |
| 8 | AGND | power_in | Analog ground reference; thermal pad also connects to AGND |
| 9 | CH3 | input | Analog input channel 3 of 4-channel multiplexer |
| 10 | CH2 | input | Analog input channel 2 of 4-channel multiplexer |
| 11 | CH1 | input | Analog input channel 1 of 4-channel multiplexer |
| 12 | CH0 | input | Analog input channel 0 of 4-channel multiplexer |
| 13 | MUXOUT | output | Multiplexer output; routes selected channel to ADC input through signal conditioning |
| 14 | ADCIN | input | Analog-to-digital converter input, connected to multiplexer output |
| 15 | AVDD | power_in | Analog power supply input, 2.2 V to 5.5 V |
| 16 | DVDD | power_in | Digital power supply input, 1.65 V to 5.5 V |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WQFN-16-EP(3x3) |
| Category | Data Acquisition |
| Pins | 17 |

## CAD (KiCad official)

- Symbol: `ADS7924IRTET`
- Footprint: `Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm`
- 3D model: WQFN-16-EP(3x3) (KiCad packages3D, STEP)
- 3D model files: `ads7924irtet-etched.step` / `ads7924irtet-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads7924irtet.step` / `ads7924irtet.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/ads7924) (51 pp, sha256 `f680e98ab6f72d72`, retrieved 2026-10-07, 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/ads7924irtet-datasheet.pdf)