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ADS1219IRTER

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Texas Instruments Analog To Digital Converters (ADC), WQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ADS1219IRTER

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

ADS1219IRTER 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 Active-low reset input; the datasheet specifies a recommended input range of DGND to DVDD, and it should be tied to DVDD if not used.
2 DGND power_in Digital ground, with DGND to AGND limited to -0.1 V to 0.1 V under recommended operating conditions.
3 AGND power_in Negative analog power supply, which is the analog ground reference for AVDD (AVDD to AGND recommended 2.3 V to 5.5 V).
4 AIN3 input Analog input 3, with absolute input voltage limited to AGND - 0.1 V to AVDD + 0.1 V for gain 1 and gain 4.
5 AIN2 input Analog input 2, with absolute input voltage limited to AGND - 0.1 V to AVDD + 0.1 V for gain 1 and gain 4.
6 REFN input Negative reference input, with absolute voltage limited to AGND - 0.1 V to V(REFP) - 0.75 V.
7 REFP input Positive reference input, with absolute voltage limited to V(REFN) + 0.75 V to AVDD + 0.1 V.
8 AIN1 input Analog input 1, with absolute input voltage limited to AGND - 0.1 V to AVDD + 0.1 V for gain 1 and gain 4.
9 AIN0 input Analog input 0, with absolute input voltage limited to AGND - 0.1 V to AVDD + 0.1 V for gain 1 and gain 4.
10 AVDD power_in Positive analog power supply, 2.3 V to 5.5 V relative to AGND; connect a 100-nF (or larger) capacitor to AGND.
11 DVDD power_in Positive digital power supply, 2.3 V to 5.5 V relative to DGND; connect a 100-nF (or larger) capacitor to DGND.
12 DRDY output Active-low, open-drain data-ready output that must be connected to DVDD through a pullup resistor.
13 SDA bidirectional Serial data input and output for the I2C interface, which must be connected to DVDD through a pullup resistor.
14 SCL input Serial clock input for the I2C interface, which must be connected to DVDD through a pullup resistor; digital input range is DGND to 5.5 V when DVDD is 3.0 V to 5.5 V.
15 A0 input I2C slave address select pin 0, tied to DGND, DVDD, SDA, or SCL; digital input range is DGND to DVDD + 0.5 V for DVDD 2.3 V to 3.0 V and DGND to 5.5 V for DVDD 3.0 V to 5.5 V.
16 A1 input I2C slave address select pin 1, tied to DGND, DVDD, SDA, or SCL; digital input range is DGND to DVDD + 0.5 V for DVDD 2.3 V to 3.0 V and DGND to 5.5 V for DVDD 3.0 V to 5.5 V.
17 Thermal pad 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: ADS1219IRTER
  • 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: ads1219irter-etched.step / ads1219irter-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ads1219irter.step / ads1219irter.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (57 pp, sha256 d754cab7e1a8a12d, retrieved 2026-10-08, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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