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ADS1222IPWR

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Texas Instruments Analog To Digital Converters (ADC), TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ADS1222IPWR

Texas Instruments · Analog To Digital Converters (ADC) · TSSOP-14

ADS1222IPWR from Texas Instruments, in a TSSOP-14. 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 VDD power_in Analog and digital power supply; the datasheet specifies VDD from 2.7 V to 5.5 V.
2 SCLK input Serial clock input for the 2-wire serial interface.
3 CLK input System clock input; the electrical characteristics specify fCLK at 8 MHz.
4 DRDY/DOUT output Dual-purpose output: goes low to indicate valid data is ready, and outputs conversion data MSB first on the rising edge of SCLK.
5 MUX input Digital input that selects the analog input of the multiplexer.
6 TEMPEN input Digital input that selects the temperature sensor input from the multiplexer.
7 BUFEN input Digital input that enables the input buffer.
8 AINP2 input Analog channel 2 positive input; the differential full-scale input (AINP − AINN) is ±2VREF.
9 AINN2 input Analog channel 2 negative input; the differential full-scale input (AINP − AINN) is ±2VREF.
10 AINP1 input Analog channel 1 positive input; the differential full-scale input (AINP − AINN) is ±2VREF.
11 AINN1 input Analog channel 1 negative input; the differential full-scale input (AINP − AINN) is ±2VREF.
12 GND power_in Analog and digital ground.
13 VREFN input Negative reference input; the reference voltage is VREF = VREFP − VREFN.
14 VREFP input Positive reference input; the reference voltage is VREF = VREFP − VREFN.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-14
Category Data Acquisition
Pins 14

CAD (KiCad official)

  • Symbol: ADS1222IPWR
  • Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
  • 3D model: TSSOP-14 (KiCad packages3D, STEP)
  • 3D model files: ads1222ipwr-etched.step / ads1222ipwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ads1222ipwr.step / ads1222ipwr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (28 pp, sha256 33c5de7be47f7022, retrieved 2026-10-11, 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