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ADS8331IRGER

Public Made by Adom

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Texas Instruments Analog To Digital Converters (ADC), VQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ADS8331IRGER

Texas Instruments · Analog To Digital Converters (ADC) · VQFN-24-EP(4x4)

ADS8331IRGER from Texas Instruments, in a VQFN-24-EP(4x4). 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 NC unconnected No internal connection on the ADS8331 (this pin is IN4 on the ADS8332); leave it unconnected.
2 NC unconnected No internal connection on the ADS8331 (this pin is IN5 on the ADS8332); leave it unconnected.
3 NC unconnected No internal connection on the ADS8331 (this pin is IN6 on the ADS8332); leave it unconnected.
4 NC unconnected No internal connection on the ADS8331 (this pin is IN7 on the ADS8332); leave it unconnected.
5 RESET input External reset input, active low.
6 EOC/INT/CDI output Programmable status output: end-of-conversion (low during conversion by default) or interrupt (low after conversion, returns high after FS/CS goes low), with programmable polarity; it can also serve as chain data input (CDI) in daisy-chain mode.
7 SCLK input SPI clock input for the serial interface.
8 FS/CS input Frame sync input for DSP operation or chip select input for SPI.
9 SDI input SPI serial data input.
10 SDO output SPI serial data output.
11 DGND power_in Digital interface ground.
12 CONVST input Conversion start input; freezes the sample-and-hold and starts a conversion. Global CONVST is independent of CS.
13 VBD power_in Digital interface supply; recommended operating range is 1.65 V to VA + 0.2 V.
14 VA power_in Analog supply, 2.7 V to 5.5 V.
15 REF+ input External reference input.
16 REF- power_in External reference ground; connect to AGND through an individual via on the printed-circuit board.
17 AGND power_in Analog ground.
18 ADCIN input ADC input; absolute maximum voltage to AGND is -0.3 V to VA + 0.3 V.
19 MUXOUT output Multiplexer output.
20 COM input Common ADC input, usually connected to AGND; absolute maximum voltage to AGND is -0.3 V to 0.3 V.
21 IN0 input Multiplexer analog input 0; absolute maximum voltage to AGND is -0.3 V to VA + 0.3 V.
22 IN1 input Multiplexer analog input 1; absolute maximum voltage to AGND is -0.3 V to VA + 0.3 V.
23 IN2 input Multiplexer analog input 2; absolute maximum voltage to AGND is -0.3 V to VA + 0.3 V.
24 IN3 input Multiplexer analog input 3; absolute maximum voltage to AGND is -0.3 V to VA + 0.3 V.
25 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VQFN-24-EP(4x4)
Category Data Acquisition
Pins 25

CAD (KiCad official)

  • Symbol: ADS8331IRGER
  • Footprint: Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm
  • 3D model: VQFN-24-EP(4x4) (KiCad packages3D, STEP)
  • 3D model files: ads8331irger-etched.step / ads8331irger-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ads8331irger.step / ads8331irger.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (62 pp, sha256 6d4028ed191231f0, retrieved 2026-10-08, 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