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ADS8322YB

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Texas Instruments Analog To Digital Converters (ADC), TQFP-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ADS8322YB

Texas Instruments · Analog To Digital Converters (ADC) · TQFP-32(5x5)

ADS8322YB from Texas Instruments, in a TQFP-32(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 DB15 tri_state Data bit 15 (MSB) of the 3-state parallel output, active when CS and RD are both low.
2 DB14 tri_state Data bit 14 of the 3-state parallel output.
3 DB13 tri_state Data bit 13 of the 3-state parallel output.
4 DB12 tri_state Data bit 12 of the 3-state parallel output.
5 DB11 tri_state Data bit 11 of the 3-state parallel output.
6 DB10 tri_state Data bit 10 of the 3-state parallel output.
7 DB9 tri_state Data bit 9 of the 3-state parallel output.
8 DB8 tri_state Data bit 8 of the 3-state parallel output.
9 DB7 tri_state Data bit 7 of the 3-state parallel output; also carries the upper byte (bits 15-8) when BYTE is high.
10 DB6 tri_state Data bit 6 of the 3-state parallel output.
11 DB5 tri_state Data bit 5 of the 3-state parallel output.
12 DB4 tri_state Data bit 4 of the 3-state parallel output.
13 DB3 tri_state Data bit 3 of the 3-state parallel output.
14 DB2 tri_state Data bit 2 of the 3-state parallel output.
15 DB1 tri_state Data bit 1 of the 3-state parallel output.
16 DB0 tri_state Data bit 0 (LSB) of the 3-state parallel output.
17 BUSY output Goes high when a conversion is in progress and returns low when the conversion has ended.
18 +VD power_in Digital power supply, +5VDC (4.75V to 5.25V).
19 DGND power_in Digital ground, to be connected to a clean ground point (analog ground).
20 CLOCK input External CMOS-compatible clock input that synchronizes the conversion process (100ns minimum period, 40ns minimum high and low times).
21 CONVST input Convert start; bringing it low for at least 20ns while CS is low switches to hold mode and initiates a conversion.
22 RD input Read input that, together with CS low, enables the parallel output bus (synchronization pulse for the parallel output).
23 BYTE input Selects the eight most significant bits (low) or eight least significant bits (high) for data valid on pins 9-16.
24 CS input Chip select; must be low when CONVST goes low to initiate a conversion and low to enable the parallel output.
25 -IN input Inverting analog input channel, limited to -0.1V to +0.5V.
26 +IN input Noninverting analog input channel, range -0.1V to +VA + 0.1V.
27 AGND power_in Analog ground.
28 +VA power_in Analog power supply, +5VDC (4.75V to 5.25V).
29 NC unconnected No connection.
30 NC unconnected No connection.
31 REFIN input Reference input (1.5V to 2.55V); when using the internal 2.5V reference, tie this pin directly to REFOUT.
32 REFOUT output Internal 2.5V reference output; a 0.1uF capacitor should be connected to this pin when the internal reference is used.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TQFP-32(5x5)
Category Data Acquisition
Pins 32

CAD (KiCad official)

  • Symbol: ADS8322YB
  • Footprint: Package_QFP:TQFP-32_5x5mm_P0.5mm
  • 3D model: TQFP-32(5x5), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.1 mm nominal TQFP height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
  • 3D model files: ads8322yb-etched.step / ads8322yb-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ads8322yb.step / ads8322yb.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (19 pp, sha256 15e121b1e5061dfd, 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