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Contents

README

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ADS1204IRHBT

Texas Instruments · Analog To Digital Converters (ADCs) · VQFN-32-EP(5x5)

ADS1204IRHBT from Texas Instruments, in a VQFN-32-EP(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 CH A+ input Noninverting analog input of channel A.
2 CH A- input Inverting analog input of channel A.
3 CH B+ input Noninverting analog input of channel B.
4 CH B- input Inverting analog input of channel B.
5 CH C- input Inverting analog input of channel C.
6 CH C+ input Noninverting analog input of channel C.
7 CH D- input Inverting analog input of channel D.
8 CH D+ input Noninverting analog input of channel D.
9 REFIN D input Reference voltage input of channel D; accepts 0.5 V to 2.6 V for external reference source.
10 REFIN C input Reference voltage input of channel C; accepts 0.5 V to 2.6 V for external reference source.
11 AGND power_in Analog ground.
12 AVDD power_in Analog power supply; nominal 5 V.
13 NC unconnected No connection; this pin is left unconnected.
14 AVDD power_in Analog power supply; nominal 5 V.
15 AGND power_in Analog ground.
16 CLKSEL input Clock select input; logic high selects internal clock or logic low selects external clock.
17 CLKIN input External clock input; accepts 1 MHz to 32 MHz when CLKSEL = 0.
18 BVDD power_in Digital interface power supply; operates from 2.7 V to 5.5 V.
19 BGND power_in Interface ground.
20 CLKOUT output System clock output from the internal oscillator or external clock divider.
21 OUT D output Serial bit stream output from channel D delta-sigma modulator.
22 OUT C output Serial bit stream output from channel C delta-sigma modulator.
23 OUT B output Serial bit stream output from channel B delta-sigma modulator.
24 OUT A output Serial bit stream output from channel A delta-sigma modulator.
25 NC unconnected No connection; this pin is left unconnected.
26 AGND power_in Analog ground.
27 AVDD power_in Analog power supply; nominal 5 V.
28 REFOUT output Reference voltage output from internal 2.5 V reference source; nominal 2.5 V.
29 AVDD power_in Analog power supply; nominal 5 V.
30 AGND power_in Analog ground.
31 REFIN B input Reference voltage input of channel B; accepts 0.5 V to 2.6 V for external reference source.
32 REFIN A input Reference voltage input of channel A; accepts 0.5 V to 2.6 V for external reference source.
33 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VQFN-32-EP(5x5)
Category ADC/DAC/Data Conversion
Pins 33

CAD (KiCad official)

  • Symbol: ADS1204IRHBT
  • Footprint: Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm
  • 3D model: VQFN-32-EP(5x5) (KiCad packages3D, STEP)
  • 3D model files: ads1204irhbt-etched.step / ads1204irhbt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ads1204irhbt.step / ads1204irhbt.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (34 pp, sha256 0ab72145f1d9695c, retrieved 2026-09-17, 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 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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