component

ADS122U04IRTER

Public Made by Adom

by adom

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

componentdata acquisitionads122u04irterfactory-2.0.0extractor-text

Verified ADS122U04IRTER

by Ray · last 5 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

5 Nov 2026RayPublished by the parts factory: tier mfr, 17 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: ADS122U04IRTER · WQFN-16-EP(3x3) · 17 pins
  • ✓copper: 17 copper pads, none touching another net
  • ✓datasheet: all 17 pin names found in the 77-page datasheet
  • ✓distributor: lcsc C2863244, digikey 296-50887-2-ND, mouser 595-ADS122U04IRTER
  • ✓family: QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-x9fbuet3/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 17 pins = 17 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 17 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ ads122u04irter.kicad_sym✓ ads122u04irter.kicad_mod✓ ads122u04irter.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Datasheet

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

ADS122U04IRTER

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

ADS122U04IRTER 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 Reset input, active low, referenced to DGND with a digital input range of DGND to DVDD.
2 DGND power_in Digital ground.
3 AVSS power_in Negative analog power supply; unipolar operation requires AVSS to DGND between -0.1 V and 0.1 V.
4 AIN3 input Analog input 3; absolute maximum voltage is AVSS - 0.3 V to AVDD + 0.3 V.
5 AIN2 input Analog input 2; absolute maximum voltage is AVSS - 0.3 V to AVDD + 0.3 V.
6 REFN input Negative reference input; absolute maximum voltage is AVSS - 0.3 V to AVDD + 0.3 V.
7 REFP input Positive reference input; absolute maximum voltage is AVSS - 0.3 V to AVDD + 0.3 V.
8 AIN1 input Analog input 1; absolute maximum voltage is AVSS - 0.3 V to AVDD + 0.3 V.
9 AIN0 input Analog input 0; absolute maximum voltage is AVSS - 0.3 V to AVDD + 0.3 V.
10 AVDD power_in Positive analog power supply, 2.3 V to 5.5 V relative to AVSS; connect a 100-nF (or larger) capacitor to AVSS.
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 GPIO2/DRDY bidirectional General-purpose input/output 2 or data ready output, active low; digital range DGND to DVDD.
13 TX output UART serial data output; digital output referenced to DGND and DVDD.
14 RX input UART serial data input; digital input range DGND to DVDD.
15 GPIO1 bidirectional General-purpose input/output 1; digital input range DGND to DVDD.
16 GPIO0 bidirectional General-purpose input/output 0; digital input range DGND to DVDD.
17 EP 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

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Power-supply voltage AVDD to AVSS -0.3 7 V 4
Power-supply voltage DVDD to DGND -0.3 7 V 4
Power-supply voltage AVSS to DGND -2.8 0.3 V 4
Input current, continuous, any pin except power-supply pins -10 10 mA 4
Storage temperature Tstg -60 150 °C 4
Junction temperature TJ 150 °C 4
Unipolar analog power supply AVDD to AVSS 2.3 5.5 V 4
Unipolar analog power supply AVSS to DGND -0.1 0 0.1 V 4
Bipolar analog power supply AVDD to DGND 2.3 2.5 2.75 V 4
Bipolar analog power supply AVSS to DGND -2.75 -2.5 -2.3 V 4
Digital power supply DVDD to DGND 2.3 5.5 V 4
Differential reference input voltage VREF 0.75 V VREF = V(REFP), V(REFN) 4
Operating ambient temperature TA -40 125 °C 4
Absolute input current -5 5 nA PGA disabled, gain = 1 to 4, normal mode, VIN = 0 V 5
Absolute input current -10 10 nA PGA disabled, gain = 1 to 4, turbo mode, VIN = 0 V 5
Absolute input current -1 1 nA Gain = 1 to 128, VIN = 0 V 5
Differential input current -5 5 nA PGA disabled, gain = 1 to 4, normal mode, VCM = AVDD / 2, -VREF / Gain ≤ VIN ≤ VREF / Gain 5
Differential input current -10 10 nA PGA disabled, gain = 1 to 4, turbo mode, VCM = AVDD / 2, -VREF / Gain ≤ VIN ≤ VREF / Gain 5
Differential input current -1 1 nA Gain = 1 to 128, VCM = AVDD / 2, -VREF / Gain ≤ VIN ≤ VREF / Gain 5
Data rate, normal mode DR 20 1000 SPS Normal mode; settings 20, 45, 90, 175, 330, 600, 1000 5
Data rate, turbo mode DR 40 2000 SPS Turbo mode; settings 40, 90, 180, 350, 660, 1200, 2000 5
Integral nonlinearity INL -15 6 15 ppmFSR AVDD = 3.3 V, gain = 1 to 128, VCM = AVDD / 2, external VREF, normal mode, best fit 5
Input offset voltage VIO -150 5 150 µV Gain = 1, differential inputs, TA = 25°C 5
Input offset voltage VIO -4 4 µV Gain = 2 to 128, differential inputs 5
Gain error -0.05 0.01 0.05 % Gain = 1 to 32, TA = 25°C 5
Gain error -0.1 0.015 0.1 % Gain = 64 to 128, TA = 25°C 5
Gain drift 0.5 2 ppm/°C Gain = 1 to 32 5
Offset drift 0.1 0.6 µV/°C Gain = 1 to 128 5
Normal-mode rejection ratio NMRR 78 88 dB 50 Hz ±1 Hz, DR = 20 SPS 6
Normal-mode rejection ratio NMRR 80 88 dB 60 Hz ±1 Hz, DR = 20 SPS 6
Common-mode rejection ratio CMRR 90 105 dB At dc, gain = 1, AVDD = 3.3 V 6
Common-mode rejection ratio CMRR 105 115 dB fCM = 50 Hz or 60 Hz, DR = 20 SPS, AVDD = 3.3 V 6
Common-mode rejection ratio CMRR 95 110 dB fCM = 50 Hz or 60 Hz, DR = 2 kSPS, AVDD = 3.3 V 6
Power-supply rejection ratio AVDD PSRR 85 105 dB AVDD at dc, VCM = AVDD / 2 6
Power-supply rejection ratio DVDD PSRR 95 115 dB DVDD at dc, VCM = AVDD / 2 6
Internal reference voltage accuracy VREF -0.25 0.04 0.25 % TA = 25°C, WQFN package 6
Internal reference temperature drift 5 30 ppm/°C 6
Internal oscillator accuracy, normal mode -2 1 2 % Normal mode 6
IDAC accuracy (each IDAC) -6 1 6 % IDAC = 50 µA to 1.5 mA 6
IDAC current matching 0.3 2 % IDAC = 50 µA to 1.5 mA, TA = 25°C 6
IDAC temperature drift matching 8 40 ppm/°C IDAC = 50 µA to 1.5 mA 6
IDAC current settings 10 1500 µA Settings 10, 50, 100, 250, 500, 1000, 1500 µA 6
Temperature sensor accuracy -1 0.25 1 °C TA = 0°C to +85°C 6
Temperature sensor accuracy -1.5 0.5 1.5 °C TA = -40°C to +125°C 6
Digital input current -1 1 µA DGND ≤ VDigital Input ≤ DVDD 6
Analog supply current IAVDD 0.1 3 µA Power-down mode 7
Analog supply current IAVDD 360 510 µA Normal mode, gain = 1 to 16 7
Digital supply current IDVDD 0.3 5 µA Power-down mode 7
Digital supply current IDVDD 65 100 µA Normal mode 7
Bus baud rate 1/tBAUD 2 120 kBaud 8
Edge timing variance tJITTER -1 1 % 8
Pulse duration, RESET low tw(RSL) 250 ns 8
Rise time, RX tr(RX) 15 % of tBAUD 10-pF load 8
Fall time, RX tf(RX) 15 % of tBAUD 10-pF load 8
Junction-to-ambient thermal resistance (WQFN) RθJA 57.7 °C/W 5
Junction-to-case (top) thermal resistance (WQFN) RθJC(top) 29 °C/W 5
Junction-to-board thermal resistance (WQFN) RθJB 19.9 °C/W 5
Junction-to-top characterization parameter (WQFN) ψJT 0.3 °C/W 5
Junction-to-board characterization parameter (WQFN) ψJB 19.8 °C/W 5
Junction-to-case (bottom) thermal resistance (WQFN) RθJC(bot) 11.8 °C/W 5

CAD (KiCad official)

  • Symbol: ADS122U04IRTER
  • 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: ads122u04irter-etched.step / ads122u04irter-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ads122u04irter.step / ads122u04irter.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (77 pp, sha256 a6d94b931374425c, retrieved 2026-11-05, tier: manufacturer)
  • 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