ADS131M04

{
  "schema_version": 1,
  "type": "component",
  "slug": "ads131m04",
  "title": "ADS131M04",
  "brief": "TI 4-channel, 24-bit, simultaneously-sampling delta-sigma ADC, TSSOP-20. SPI, integrated PGA, up to 32 kSPS. Datasheet-verified.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "data-converter",
    "adc",
    "delta-sigma",
    "24-bit",
    "spi",
    "tssop-20",
    "texas-instruments"
  ],
  "component": {
    "mpn": "ADS131M04",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Data Converter",
    "subcategory": "Delta-sigma ADC",
    "datasheet": "https://www.ti.com/lit/ds/symlink/ads131m04.pdf",
    "parts": {
      "symbol": "ads131m04.kicad_sym",
      "footprint": "ads131m04.kicad_mod",
      "model_3d": "ads131m04-etched.glb",
      "model_3d_plain": "ads131m04.glb",
      "model_3d_step": "ads131m04-etched.step",
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      "lbr": "ads131m04.lbr"
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog supply, 2.7 V to 3.6 V. Connect a 1-µF decoupling capacitor to AGND."
      },
      {
        "number": "2",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground reference for AVDD and the ADC analog front-end."
      },
      {
        "number": "3",
        "name": "AIN0P",
        "type": "input",
        "description": "Positive differential analog input, channel 0. Input range referenced to AGND with an AVDD+0.3 V ceiling."
      },
      {
        "number": "4",
        "name": "AIN0N",
        "type": "input",
        "description": "Negative differential analog input, channel 0."
      },
      {
        "number": "5",
        "name": "AIN1N",
        "type": "input",
        "description": "Negative differential analog input, channel 1."
      },
      {
        "number": "6",
        "name": "AIN1P",
        "type": "input",
        "description": "Positive differential analog input, channel 1."
      },
      {
        "number": "7",
        "name": "AIN2P",
        "type": "input",
        "description": "Positive differential analog input, channel 2."
      },
      {
        "number": "8",
        "name": "AIN2N",
        "type": "input",
        "description": "Negative differential analog input, channel 2."
      },
      {
        "number": "9",
        "name": "AIN3N",
        "type": "input",
        "description": "Negative differential analog input, channel 3."
      },
      {
        "number": "10",
        "name": "AIN3P",
        "type": "input",
        "description": "Positive differential analog input, channel 3."
      },
      {
        "number": "11",
        "name": "SYNC/RESET",
        "type": "input",
        "description": "Conversion synchronization or system reset, active low. Digital input referenced to DGND/DVDD."
      },
      {
        "number": "12",
        "name": "CS",
        "type": "input",
        "description": "SPI chip select, active low. Enables the serial interface for the current transaction."
      },
      {
        "number": "13",
        "name": "DRDY",
        "type": "output",
        "description": "Data-ready indicator, active low. Falls when a new conversion result is available in the output register."
      },
      {
        "number": "14",
        "name": "SCLK",
        "type": "input",
        "description": "SPI serial data clock. Shifts DIN in and DOUT out on opposite edges."
      },
      {
        "number": "15",
        "name": "DOUT",
        "type": "output",
        "description": "SPI serial data output. Presents conversion data and register-read responses."
      },
      {
        "number": "16",
        "name": "DIN",
        "type": "input",
        "description": "SPI serial data input. Accepts commands and register writes."
      },
      {
        "number": "17",
        "name": "CLKIN",
        "type": "input",
        "description": "Master clock input, nominal 8.192 MHz. Drives the modulator and internal digital filter timing."
      },
      {
        "number": "18",
        "name": "CAP",
        "type": "power_out",
        "description": "Internal LDO regulator output. Connect a 220-nF capacitor to DGND; do not load externally."
      },
      {
        "number": "19",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground reference for DVDD and the digital I/O."
      },
      {
        "number": "20",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital I/O supply, 2.7 V to 3.6 V. Connect a 1-µF decoupling capacitor to DGND."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/ads131m04.pdf",
        "pages": 105,
        "sha256": "487bfd27103d0bac",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
        "checked": "2026-10-07",
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  },
  "metadata": {
    "specs": {
      "Type": "4-channel simultaneous-sampling delta-sigma ADC",
      "Resolution": "24-bit",
      "Channels": "4 differential",
      "PGA gain": "1 to 128 per channel",
      "Data rate": "Up to 32 kSPS/channel",
      "Interface": "SPI",
      "Analog supply": "2.7-3.6 V",
      "Package": "TSSOP-20"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
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  "discovery_triggers": [
    "ads131m04",
    "24-bit adc",
    "simultaneous sampling adc",
    "delta sigma adc spi"
  ],
  "discovery_pitch": "TI ADS131M04 4-channel 24-bit simultaneous-sampling delta-sigma ADC (TSSOP-20) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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}