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Contents

README

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ADS124S08IRHBT

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

ADS124S08IRHBT from Texas Instruments, in a VQFN-32-EP(5x5). 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 AINCOM input Common analog input for single-ended differential measurements.
2 AIN5 input Analog input 5 to the multiplexer.
3 AIN4 input Analog input 4 to the multiplexer.
4 AIN3 input Analog input 3 to the multiplexer.
5 AIN2 input Analog input 2 to the multiplexer.
6 AIN1 input Analog input 1 to the multiplexer.
7 AIN0 input Analog input 0 to the multiplexer.
8 START/SYNC input Digital input for conversion start and external synchronization; rising edge initiates a new conversion.
9 CS input Chip select input (active low); enables the SPI serial interface for communication.
10 DIN input Serial data input for SPI commands and register configuration data; latched on falling SCLK edge.
11 SCLK input Serial clock input for SPI interface; data is latched on the falling edge.
12 DOUT/DRDY tri_state Serial data output combined with data ready indicator (active low); tri-state output when CS is high.
13 DRDY output Data ready output (active low); indicates when new conversion data are available for retrieval.
14 DGND power_in Digital ground reference for all digital logic circuits.
15 IOVDD power_in Digital I/O power supply (2.7V to 3.6V); requires 100-nF or larger bypass capacitor to DGND.
16 DVDD power_in Digital core power supply (2.7V to 3.6V); requires 100-nF or larger bypass capacitor to DGND.
17 CLK input External clock input or internal oscillator selection; connect to DGND to use internal 4.096-MHz oscillator.
18 RESET input Active-low reset input; device initialization triggered when pulled low.
19 GPIO3/AIN11 bidirectional General-purpose I/O (programmable as input or output) or analog input 11 (ADS124S08 only).
20 GPIO2/AIN10 bidirectional General-purpose I/O (programmable as input or output) or analog input 10 (ADS124S08 only).
21 GPIO1/AIN9 bidirectional General-purpose I/O (programmable as input or output) or analog input 9 (ADS124S08 only).
22 GPIO0/AIN8 bidirectional General-purpose I/O (programmable as input or output) or analog input 8 (ADS124S08 only).
23 REFOUT output Positive voltage reference output (2.5V nominal); requires 1-µF to 47-µF capacitor to REFCOM if internal reference is enabled.
24 REFCOM power_in Negative voltage reference output; connect to AVSS.
25 NC unconnected No connection; leave unconnected or connect to AVSS.
26 AVDD power_in Positive analog power supply (2.7V to 5.25V single-ended or ±2.5V dual-rail); requires 330-nF or larger bypass capacitor to AVSS.
27 AVSS power_in Negative analog power supply and ground reference for all analog circuits.
28 AVSS-SW power_in Analog ground with integrated low-side switch for power management; connect to AVSS.
29 REFN0 input Negative external reference input 0 for alternative reference configuration.
30 REFP0 input Positive external reference input 0 for alternative reference configuration.
31 REFN1/AIN7 input Negative external reference input 1 or analog input 7 (ADS124S08 only) for flexible reference or measurement configuration.
32 REFP1/AIN6 input Positive external reference input 1 or analog input 6 (ADS124S08 only) for flexible reference or measurement configuration.
33 PAD 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: ADS124S08IRHBT
  • 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: ads124s08irhbt-etched.step / ads124s08irhbt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ads124s08irhbt.step / ads124s08irhbt.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (115 pp, sha256 62eb7595c22ca2ef, retrieved 2026-10-03, 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-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