AD7689BCPZ

{
  "slug": "ad7689bcpz",
  "version": "0.1.0",
  "type": "component",
  "description": "Analog Devices Analog To Digital Converters (ADC), LFCSP-20(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "data acquisition",
    "ad7689bcpz",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ad7689bcpz.kicad_sym",
    "ad7689bcpz.kicad_mod",
    "ad7689bcpz.glb",
    "ad7689bcpz.step",
    "ad7689bcpz.lbr",
    "docs/hero.png",
    "docs/ad7689bcpz-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ad7689bcpz-hero.glb",
    "ad7689bcpz-hero.overlay.json",
    "ad7689bcpz-etched.glb"
  ],
  "component": {
    "mpn": "AD7689BCPZ",
    "manufacturer": "Analog Devices",
    "package": "LFCSP-20(4x4)",
    "pin_count": 21,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884102292647936",
    "parts": {
      "symbol": "ad7689bcpz.kicad_sym",
      "footprint": "ad7689bcpz.kicad_mod",
      "model_3d": "ad7689bcpz-hero.glb",
      "model_3d_plain": "ad7689bcpz-etched.glb",
      "model_3d_step": "ad7689bcpz-etched.step",
      "model_3d_step_plain": "ad7689bcpz.step",
      "lbr": "ad7689bcpz.lbr"
    },
    "distributor_links": {
      "lcsc": "C32502",
      "digikey": "505-AD7689BCPZ-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T21:22:26Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "505-AD7689BCPZ-ND",
        "status": "found"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply input for the ADC core, specified from 2.5 V to 5.5 V and recommended to be decoupled with 10 μF and 100 nF."
      },
      {
        "number": "2",
        "name": "REF",
        "type": "bidirectional",
        "description": "Reference voltage pin, which can be driven from the internal reference (0.5 V to VDD) and needs 10 μF decoupling to GND when the internal buffer is used."
      },
      {
        "number": "3",
        "name": "REFIN",
        "type": "bidirectional",
        "description": "Reference input for an external reference, with the datasheet range of 0.5 V to VDD − 0.5 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the analog and digital circuits."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the analog and digital circuits (second ground pin)."
      },
      {
        "number": "6",
        "name": "IN4",
        "type": "input",
        "description": "Analog input channel 4 of the 8-channel multiplexer; input range is 0 V to VREF/2 V as stated for IN[7:0]."
      },
      {
        "number": "7",
        "name": "IN5",
        "type": "input",
        "description": "Analog input channel 5 of the 8-channel multiplexer; input range is 0 V to VREF/2 V as stated for IN[7:0]."
      },
      {
        "number": "8",
        "name": "IN6",
        "type": "input",
        "description": "Analog input channel 6 of the 8-channel multiplexer; input range is 0 V to VREF/2 V as stated for IN[7:0]."
      },
      {
        "number": "9",
        "name": "IN7",
        "type": "input",
        "description": "Analog input channel 7 of the 8-channel multiplexer; input range is 0 V to VREF/2 V as stated for IN[7:0]."
      },
      {
        "number": "10",
        "name": "COM",
        "type": "input",
        "description": "Common analog input for the channel multiplexer; its voltage limits are not legible in the extracted text."
      },
      {
        "number": "11",
        "name": "CNV",
        "type": "input",
        "description": "Convert input; a rising edge on CNV starts a conversion."
      },
      {
        "number": "12",
        "name": "DIN",
        "type": "input",
        "description": "Serial data input used to configure the ADC during the SPI transfer."
      },
      {
        "number": "13",
        "name": "SCK",
        "type": "input",
        "description": "Serial clock input for the SPI-compatible interface."
      },
      {
        "number": "14",
        "name": "SDO",
        "type": "output",
        "description": "Serial data output that shifts out conversion results MSB first, with logic levels referenced to VIO."
      },
      {
        "number": "15",
        "name": "VIO",
        "type": "power_in",
        "description": "Digital interface supply, selectable at 1.8 V, 2.5 V, 3 V, or 5 V, and decoupled with 100 nF."
      },
      {
        "number": "16",
        "name": "IN0",
        "type": "input",
        "description": "Analog input channel 0 of the 8-channel multiplexer; input range is 0 V to VREF/2 V as stated for IN[7:0]."
      },
      {
        "number": "17",
        "name": "IN1",
        "type": "input",
        "description": "Analog input channel 1 of the 8-channel multiplexer; input range is 0 V to VREF/2 V as stated for IN[7:0]."
      },
      {
        "number": "18",
        "name": "IN2",
        "type": "input",
        "description": "Analog input channel 2 of the 8-channel multiplexer; input range is 0 V to VREF/2 V as stated for IN[7:0]."
      },
      {
        "number": "19",
        "name": "IN3",
        "type": "input",
        "description": "Analog input channel 3 of the 8-channel multiplexer; input range is 0 V to VREF/2 V as stated for IN[7:0]."
      },
      {
        "number": "20",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply input for the ADC core, specified from 2.5 V to 5.5 V (second VDD pin)."
      },
      {
        "number": "21",
        "name": "EPAD",
        "type": "unconnected",
        "description": "Exposed pad is not connected internally and should be soldered to the system ground plane for solder joint reliability."
      }
    ],
    "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 text extraction is garbled in places. Pin assignments were cross-checked between the A; Pin 10 (COM) has no legible voltage limit in the extracted text, so its description is incomplete.; The datasheet gives the exposed pad as NC (not connected internally). It is mapped to 'unconnected' "
        ],
        "pages_sent": 7,
        "cost_usd": 0.069,
        "at": "2026-10-18T21:22:11"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884102292647936",
        "pages": 32,
        "sha256": "66df19b59b0d6f7e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ad7689bcpz.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9476a1612023de37f27b4972110ab6ac6dc0eaf5ac48957a2e1c497650082a5",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ad7689bcpz-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c5775b530c305e6dfe07cf4c3422868409cbcaab2963eb9fe13c74023e2780d0",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}