ADS1285IRHBR

{
  "slug": "ads1285irhbr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Analog To Digital Converters (ADC), VQFN-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "data acquisition",
    "ads1285irhbr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
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    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "ads1285irhbr.kicad_sym",
    "ads1285irhbr.kicad_mod",
    "ads1285irhbr.glb",
    "ads1285irhbr.step",
    "ads1285irhbr.lbr",
    "docs/hero.png",
    "docs/ads1285irhbr-datasheet.pdf",
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    "viewers/footprint.html",
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  "component": {
    "mpn": "ADS1285IRHBR",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-32(5x5)",
    "pin_count": 33,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590907552119549952",
    "parts": {
      "symbol": "ads1285irhbr.kicad_sym",
      "footprint": "ads1285irhbr.kicad_mod",
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      "model_3d_step": "ads1285irhbr-etched.step",
      "model_3d_step_plain": "ads1285irhbr.step",
      "lbr": "ads1285irhbr.lbr"
    },
    "distributor_links": {
      "lcsc": "C6459630",
      "digikey": "296-ADS1285IRHBRTR-ND",
      "mouser": "595-ADS1285IRHBR"
    },
    "distributor_check": {
      "checked_at": "2026-10-12T12:13:37Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-ADS1285IRHBRTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-ADS1285IRHBR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "AIN1P",
        "type": "input",
        "description": "Analog input, channel 1 positive input."
      },
      {
        "number": "2",
        "name": "AIN1N",
        "type": "input",
        "description": "Analog input, channel 1 negative input."
      },
      {
        "number": "3",
        "name": "AIN2P",
        "type": "input",
        "description": "Analog input, channel 2 positive input."
      },
      {
        "number": "4",
        "name": "AIN2N",
        "type": "input",
        "description": "Analog input, channel 2 negative input."
      },
      {
        "number": "5",
        "name": "CAPP",
        "type": "passive",
        "description": "Internal PGA positive capacitor; connect a 10-nF C0G capacitor across CAPP and CAPN."
      },
      {
        "number": "6",
        "name": "CAPN",
        "type": "passive",
        "description": "Internal PGA negative capacitor; connect a 10-nF C0G capacitor across CAPP and CAPN."
      },
      {
        "number": "7",
        "name": "CAPBP",
        "type": "passive",
        "description": "Internal buffer positive capacitor; connect a 47-nF C0G capacitor to AVSS."
      },
      {
        "number": "8",
        "name": "CAPBN",
        "type": "passive",
        "description": "Internal buffer negative capacitor; connect a 47-nF C0G capacitor to AVSS."
      },
      {
        "number": "9",
        "name": "CAPC",
        "type": "passive",
        "description": "Internal charge-pump capacitor; connect a 4.7-nF, minimum 10-V rated capacitor to AGND."
      },
      {
        "number": "10",
        "name": "AVSS",
        "type": "power_in",
        "description": "PGA negative analog supply; see the Analog Power Supplies section for details."
      },
      {
        "number": "11",
        "name": "AVDD1",
        "type": "power_in",
        "description": "PGA positive analog supply; see the Analog Power Supplies section for details."
      },
      {
        "number": "12",
        "name": "AVDD2",
        "type": "power_in",
        "description": "Modulator analog supply; see the Analog Power Supplies section for details."
      },
      {
        "number": "13",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "14",
        "name": "CAPI",
        "type": "passive",
        "description": "Internal input bias capacitor; connect a 100-nF ceramic capacitor to AGND."
      },
      {
        "number": "15",
        "name": "GPIO0",
        "type": "bidirectional",
        "description": "General-purpose digital I/O."
      },
      {
        "number": "16",
        "name": "GPIO1",
        "type": "bidirectional",
        "description": "General-purpose digital I/O."
      },
      {
        "number": "17",
        "name": "CAPD",
        "type": "power_out",
        "description": "Digital low-dropout regulator (LDO) output; connect a 220-nF ceramic capacitor to DGND."
      },
      {
        "number": "18",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "19",
        "name": "IOVDD",
        "type": "power_in",
        "description": "Digital I/O power supply; see the IOVDD Power Supply section for details."
      },
      {
        "number": "20",
        "name": "CLK",
        "type": "input",
        "description": "ADC clock input."
      },
      {
        "number": "21",
        "name": "CS",
        "type": "input",
        "description": "Serial interface select, active low."
      },
      {
        "number": "22",
        "name": "SCLK",
        "type": "input",
        "description": "Serial interface clock."
      },
      {
        "number": "23",
        "name": "DIN",
        "type": "input",
        "description": "Serial interface data in."
      },
      {
        "number": "24",
        "name": "DOUT",
        "type": "output",
        "description": "Serial interface data out."
      },
      {
        "number": "25",
        "name": "DRDY",
        "type": "output",
        "description": "Data ready, active low."
      },
      {
        "number": "26",
        "name": "SYNC",
        "type": "input",
        "description": "ADC synchronization, active high."
      },
      {
        "number": "27",
        "name": "RESET",
        "type": "input",
        "description": "ADC reset, active low."
      },
      {
        "number": "28",
        "name": "PWDN",
        "type": "input",
        "description": "ADC power down, active low."
      },
      {
        "number": "29",
        "name": "REFN",
        "type": "input",
        "description": "Negative reference input; see the Voltage Reference Input section for details."
      },
      {
        "number": "30",
        "name": "REFP",
        "type": "input",
        "description": "Positive reference input; see the Voltage Reference Input section for details."
      },
      {
        "number": "31",
        "name": "CAPR",
        "type": "passive",
        "description": "Internal reference bias capacitor; connect a 100-nF ceramic capacitor to AVSS."
      },
      {
        "number": "32",
        "name": "AVSS",
        "type": "power_in",
        "description": "PGA negative supply (second AVSS pin on the package)."
      },
      {
        "number": "33",
        "name": "Thermal pad",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet lists AVSS on both pin 10 and pin 32; both are reproduced as printed. Verify against t; The thermal pad is an unnumbered exposed pad on the VQFN package; the datasheet says to connect it t; Package confirmed: the package option addendum (page 59) lists ADS1285IRHBR as VQFN, RHB, 32 pins, w",
          "exposed pad 33 added from the footprint"
        ],
        "pages_sent": 7,
        "cost_usd": 0.056,
        "at": "2026-10-12T12:13:19"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590907552119549952",
        "pages": 67,
        "sha256": "9a76e990ead8bcb8",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
        "file": "ads1285irhbr-etched.step",
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        "sha256": "8f584f4edf904be58ca8c5d2809ec930616787937137ac810fecd2c2f37e01c8",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  }
}