AD7689BCPZRL7

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  "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.",
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    "mpn": "AD7689BCPZRL7",
    "manufacturer": "Analog Devices",
    "package": "LFCSP-20(4x4)",
    "pin_count": 21,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
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    "distributor_links": {
      "lcsc": "C706705",
      "digikey": "AD7689BCPZRL7TR-ND",
      "mouser": "584-AD7689BCPZR7"
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    "distributor_check": {
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      "source": "Component Ocean /api/assign-pns",
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    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply input; the datasheet specifies operation from 2.3 V to 5.5 V."
      },
      {
        "number": "2",
        "name": "REF",
        "type": "bidirectional",
        "description": "Reference buffer pin for the internal or external reference, with the datasheet giving a 0.5 V to VDD range and a 10 µF decoupling capacitor to GND when the internal reference is used."
      },
      {
        "number": "3",
        "name": "REFIN",
        "type": "bidirectional",
        "description": "External reference input, with the block diagram specifying a range of 0.5 V to VDD − 0.5 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "6",
        "name": "IN4",
        "type": "input",
        "description": "Analog input channel 4, with the multiplexed input range stated as 0 V to VREF/2."
      },
      {
        "number": "7",
        "name": "IN5",
        "type": "input",
        "description": "Analog input channel 5, with the multiplexed input range stated as 0 V to VREF/2."
      },
      {
        "number": "8",
        "name": "IN6",
        "type": "input",
        "description": "Analog input channel 6, with the multiplexed input range stated as 0 V to VREF/2."
      },
      {
        "number": "9",
        "name": "IN7",
        "type": "input",
        "description": "Analog input channel 7, with the multiplexed input range stated as 0 V to VREF/2."
      },
      {
        "number": "10",
        "name": "COM",
        "type": "input",
        "description": "Common analog input pin shared by the channel multiplexer as the reference point for the single-ended channels."
      },
      {
        "number": "11",
        "name": "CNV",
        "type": "input",
        "description": "Conversion start input, where a conversion is initiated on the CNV edge."
      },
      {
        "number": "12",
        "name": "DIN",
        "type": "input",
        "description": "Serial data input used to configure the ADC over the SPI-compatible interface."
      },
      {
        "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 from which the conversion result is shifted out, MSB first."
      },
      {
        "number": "15",
        "name": "VIO",
        "type": "power_in",
        "description": "Interface digital supply, specified from 1.8 V to 5.5 V, which sets the serial interface logic levels."
      },
      {
        "number": "16",
        "name": "IN0",
        "type": "input",
        "description": "Analog input channel 0, with the multiplexed input range stated as 0 V to VREF/2."
      },
      {
        "number": "17",
        "name": "IN1",
        "type": "input",
        "description": "Analog input channel 1, with the multiplexed input range stated as 0 V to VREF/2."
      },
      {
        "number": "18",
        "name": "IN2",
        "type": "input",
        "description": "Analog input channel 2, with the multiplexed input range stated as 0 V to VREF/2."
      },
      {
        "number": "19",
        "name": "IN3",
        "type": "input",
        "description": "Analog input channel 3, with the multiplexed input range stated as 0 V to VREF/2."
      },
      {
        "number": "20",
        "name": "VDD",
        "type": "power_in",
        "description": "Second power supply pin, tied to the same 2.3 V to 5.5 V supply as pin 1."
      },
      {
        "number": "21",
        "name": "EPAD",
        "type": "unconnected",
        "description": "Exposed pad is not connected internally; solder it to the system ground plane for solder-joint reliability."
      }
    ],
    "provenance": {
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        "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 heavily garbled (font encoding). Pin numbers and mnemonics were rea; Ordering code: the MPN AD7689BCPZRL7 corresponds to the ordering table entry AD7689BCPZRL71 (the tra; Exposed pad is listed as '21 (EPAD)' in the table and is not a numbered lead. It is reported here as"
        ],
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        "cost_usd": 0.0752,
        "at": "2026-10-18T07:04:50"
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        "pages": 32,
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        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
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        "refuses_to_fabricate": true
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