AD7682BCPZRL7

{
  "slug": "ad7682bcpzrl7",
  "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",
    "ad7682bcpzrl7",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ad7682bcpzrl7.kicad_sym",
    "ad7682bcpzrl7.kicad_mod",
    "ad7682bcpzrl7.glb",
    "ad7682bcpzrl7.step",
    "ad7682bcpzrl7.lbr",
    "docs/hero.png",
    "docs/ad7682bcpzrl7-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ad7682bcpzrl7-hero.glb",
    "ad7682bcpzrl7-hero.overlay.json",
    "ad7682bcpzrl7-etched.glb"
  ],
  "component": {
    "mpn": "AD7682BCPZRL7",
    "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/8588886007639396352",
    "parts": {
      "symbol": "ad7682bcpzrl7.kicad_sym",
      "footprint": "ad7682bcpzrl7.kicad_mod",
      "model_3d": "ad7682bcpzrl7-hero.glb",
      "model_3d_plain": "ad7682bcpzrl7-etched.glb",
      "model_3d_step": "ad7682bcpzrl7-etched.step",
      "model_3d_step_plain": "ad7682bcpzrl7.step",
      "lbr": "ad7682bcpzrl7.lbr"
    },
    "distributor_links": {
      "lcsc": "C408274",
      "digikey": "505-AD7682BCPZRL7TR-ND",
      "mouser": "584-AD7682BCPZR7"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T17:39:05Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "505-AD7682BCPZRL7TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "584-AD7682BCPZR7",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply, nominally 2.5 V to 5.5 V with an external reference, decoupled with 10 µF and 100 nF capacitors; minimum 3.0 V when using the internal 2.5 V reference and 4.5 V when using the internal 4.096 V reference."
      },
      {
        "number": "2",
        "name": "REF",
        "type": "bidirectional",
        "description": "Reference input/output: produces a selectable 2.5 V or 4.096 V system reference when the internal reference is enabled, or accepts a precision reference from 0.5 V to VDD for improved drift; needs a 10 µF decoupling capacitor placed as close to REF as possible."
      },
      {
        "number": "3",
        "name": "REFIN",
        "type": "bidirectional",
        "description": "Internal reference output/reference buffer input: requires 0.1 µF decoupling when the internal reference is used, and a buffered source between 0.5 V and (VDD − 0.5 V) when the internal reference buffer is used."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Power supply ground."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Power supply ground."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection on the AD7682 (this pin is analog input IN4 on the AD7689)."
      },
      {
        "number": "7",
        "name": "IN2",
        "type": "input",
        "description": "Analog input channel 2 on the AD7682 (channel 5 on the AD7689)."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection on the AD7682 (this pin is analog input IN6 on the AD7689)."
      },
      {
        "number": "9",
        "name": "IN3",
        "type": "input",
        "description": "Analog input channel 3 on the AD7682 (channel 7 on the AD7689)."
      },
      {
        "number": "10",
        "name": "COM",
        "type": "input",
        "description": "Common channel input; all input channels IN[7:0] can be referenced to a common-mode point of 0 V or VREF/2 V."
      },
      {
        "number": "11",
        "name": "CNV",
        "type": "input",
        "description": "Conversion input: a rising edge initiates the conversion, and holding CNV low during conversion enables the busy indicator."
      },
      {
        "number": "12",
        "name": "DIN",
        "type": "input",
        "description": "Data input used to write the 14-bit configuration register, which can be written during and after conversion."
      },
      {
        "number": "13",
        "name": "SCK",
        "type": "input",
        "description": "Serial data clock input that clocks data out on SDO and data in on DIN, MSB first."
      },
      {
        "number": "14",
        "name": "SDO",
        "type": "output",
        "description": "Serial data output, synchronized to SCK; conversion results are straight binary in unipolar modes and twos complement in bipolar modes."
      },
      {
        "number": "15",
        "name": "VIO",
        "type": "power_in",
        "description": "Input/output interface digital power, nominally at the host interface supply of 1.8 V, 2.5 V, 3 V, or 5 V."
      },
      {
        "number": "16",
        "name": "IN0",
        "type": "input",
        "description": "Analog input channel 0."
      },
      {
        "number": "17",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection on the AD7682 (this pin is analog input IN1 on the AD7689)."
      },
      {
        "number": "18",
        "name": "IN1",
        "type": "input",
        "description": "Analog input channel 1 on the AD7682 (channel 2 on the AD7689)."
      },
      {
        "number": "19",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection on the AD7682 (this pin is analog input IN3 on the AD7689)."
      },
      {
        "number": "20",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply, nominally 2.5 V to 5.5 V with an external reference, decoupled with 10 µF and 100 nF capacitors; minimum 3.0 V with the internal 2.5 V reference and 4.5 V with the internal 4.096 V reference."
      },
      {
        "number": "21",
        "name": "EPAD",
        "type": "passive",
        "description": "Exposed pad, not connected internally; for increased solder joint reliability it is recommended to solder it to the system ground plane."
      }
    ],
    "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: Datasheet lists these pins as NC for the AD7682 (they are analog inputs only on the AD7689). Typed a; Exposed pad is marked NC (no internal connection) in the datasheet. Typed as passive because it is r; Datasheet type is AI/O; mapped to KiCad bidirectional. Confirm the intended ERC class for the refere"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0746,
        "at": "2026-10-20T17:37:05"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588886007639396352",
        "pages": 37,
        "sha256": "028312fc80ae8a4b",
        "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": "ad7682bcpzrl7.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": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ad7682bcpzrl7-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": "8e523fb3cffb99bad2d3fced2effe7d09dedd46ce31958ee0330ca98212a45b0",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}