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Ray Set visibility: public 89c10e4 3d ago
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{
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  "slug": "ad7997bruz-1",
  "title": "AD7997BRUZ-1",
  "brief": "Analog Devices Analog To Digital Converters (ADCs), TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "ad7997bruz-1",
    "factory-2.0.0",
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    "mpn": "AD7997BRUZ-1",
    "manufacturer": "Analog Devices",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Data Converters",
    "subcategory": "Analog To Digital Converters (ADCs)",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/AD7997_7998.pdf",
    "parts": {
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      "footprint": "ad7997bruz-1.kicad_mod",
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      "model_3d_step": "ad7997bruz-1-etched.step",
      "model_3d_step_plain": "ad7997bruz-1.step",
      "lbr": "ad7997bruz-1.lbr"
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    "distributor_links": {
      "lcsc": "C652134",
      "digikey": "505-AD7997BRUZ-1-ND",
      "mouser": "584-AD7997BRUZ-1"
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    "distributor_check": {
      "checked_at": "2026-10-30T22:34:25Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "505-AD7997BRUZ-1-ND",
        "status": "found"
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      "mouser": {
        "pn": "584-AD7997BRUZ-1",
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    },
    "pins": [
      {
        "number": "1",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground reference point for all circuitry on the device; all analog input signals should be referred to this AGND voltage."
      },
      {
        "number": "2",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply input; the VDD range is 2.7 V to 5.5 V."
      },
      {
        "number": "3",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground reference point for all circuitry on the device; all analog input signals should be referred to this AGND voltage."
      },
      {
        "number": "4",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground reference point for all circuitry on the device; all analog input signals should be referred to this AGND voltage."
      },
      {
        "number": "5",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply input; the VDD range is 2.7 V to 5.5 V."
      },
      {
        "number": "6",
        "name": "REFIN",
        "type": "input",
        "description": "External voltage reference input with range 1.2 V to VDD; 0.1 µF and 1 µF capacitors should be placed between REFIN and AGND."
      },
      {
        "number": "7",
        "name": "VIN1",
        "type": "input",
        "description": "Single-ended analog input channel 1 with input range 0 V to REFIN."
      },
      {
        "number": "8",
        "name": "VIN3",
        "type": "input",
        "description": "Single-ended analog input channel 3 with input range 0 V to REFIN."
      },
      {
        "number": "9",
        "name": "VIN5",
        "type": "input",
        "description": "Single-ended analog input channel 5 with input range 0 V to REFIN."
      },
      {
        "number": "10",
        "name": "VIN7",
        "type": "input",
        "description": "Single-ended analog input channel 7 with input range 0 V to REFIN."
      },
      {
        "number": "11",
        "name": "VIN8",
        "type": "input",
        "description": "Single-ended analog input channel 8 with input range 0 V to REFIN."
      },
      {
        "number": "12",
        "name": "VIN6",
        "type": "input",
        "description": "Single-ended analog input channel 6 with input range 0 V to REFIN."
      },
      {
        "number": "13",
        "name": "VIN4",
        "type": "input",
        "description": "Single-ended analog input channel 4 with input range 0 V to REFIN."
      },
      {
        "number": "14",
        "name": "VIN2",
        "type": "input",
        "description": "Single-ended analog input channel 2 with input range 0 V to REFIN."
      },
      {
        "number": "15",
        "name": "AS",
        "type": "input",
        "description": "Address select logic input that selects one of three I2C addresses depending on the voltage applied (AGND, VDD, or float)."
      },
      {
        "number": "16",
        "name": "CONVST",
        "type": "input",
        "description": "Edge-triggered convert start input; the rising edge powers up the part (power-up time 1 µs) and the falling edge starts a conversion."
      },
      {
        "number": "17",
        "name": "ALERT/BUSY",
        "type": "output",
        "description": "Open-drain digital output selectable as ALERT (out-of-range indicator) or BUSY (active while a conversion is in progress)."
      },
      {
        "number": "18",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Serial bus bidirectional data line; open-drain output with an external pull-up resistor required."
      },
      {
        "number": "19",
        "name": "SCL",
        "type": "input",
        "description": "Serial bus clock input; open-drain with an external pull-up resistor required."
      },
      {
        "number": "20",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground reference point for all circuitry on the device; all analog input signals should be referred to this AGND voltage."
      }
    ],
    "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 exact MPN AD7997BRUZ-1 does not appear in the ordering guide. The listed Pb-free RU-20 TSSOP var"
        ],
        "pages_sent": 10,
        "cost_usd": 0.0252,
        "at": "2026-10-30T22:34:11"
      },
      "datasheet": {
        "url": "https://www.analog.com/media/en/technical-documentation/data-sheets/AD7997_7998.pdf",
        "pages": 32,
        "sha256": "081ef00889049a99",
        "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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        "centre_offset_mm": 0,
        "footprint_binding": "identity",
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        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
        "file": "ad7997bruz-1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
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  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices",
      "Package": "TSSOP-20",
      "Category": "Data Converters",
      "Pins": "20"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "081ef00889049a997c874ac9e8f67185d617ec1d2fa2209a05983c752f0bc959",
      "rows": [
        {
          "name": "Signal to Noise + Distortion (SINAD)",
          "symbol": "SINAD",
          "kind": "electrical",
          "unit": "dB",
          "min": 61,
          "typ": null,
          "max": null,
          "conditions": "FIN = 10 kHz for fSCL 1.7 to 3.4 MHz; FIN = 1 kHz for fSCL up to 400 kHz",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Total Harmonic Distortion (THD)",
          "symbol": "THD",
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          "min": null,
          "typ": null,
          "max": -75,
          "conditions": "FIN = 10 kHz for fSCL 1.7 to 3.4 MHz; FIN = 1 kHz for fSCL up to 400 kHz",
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        {
          "name": "Peak Harmonic or Spurious Noise (SFDR)",
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          "conditions": "FIN = 10 kHz for fSCL 1.7 to 3.4 MHz; FIN = 1 kHz for fSCL up to 400 kHz",
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        },
        {
          "name": "Aperture Delay",
          "symbol": "",
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          "unit": "ns",
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        {
          "name": "Integral Nonlinearity",
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        {
          "name": "Differential Nonlinearity",
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          "typ": null,
          "max": 0.5,
          "conditions": "Guaranteed no missed codes to 10 bits",
          "source_page": 3,
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        {
          "name": "Offset Error",
          "symbol": "",
          "kind": "electrical",
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        {
          "name": "Offset Error",
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        {
          "name": "Offset Error Match",
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        {
          "name": "Gain Error",
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        {
          "name": "Gain Error Match",
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          "typ": null,
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          "source_page": 3,
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        },
        {
          "name": "DC Leakage Current (analog input)",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
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        {
          "name": "REFIN Input Voltage Range",
          "symbol": "",
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          "conditions": "Range 1.2 V to VDD; maximum is VDD, not numeric",
          "source_page": 3,
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        {
          "name": "DC Leakage Current (REFIN)",
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          "source": "datasheet"
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          "name": "Input Capacitance (SDA, SCL)",
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        {
          "name": "t10 Fall time of SDA signal",
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        {
          "name": "t10 Fall time of SDA signal",
          "symbol": "t10",
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          "min": 10,
          "typ": null,
          "max": 80,
          "conditions": "High speed mode, CB = 100 pF max",
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          "source": "datasheet"
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        {
          "name": "t10 Fall time of SDA signal",
          "symbol": "t10",
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        {
          "name": "t11 Rise time of SCL signal",
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        {
          "name": "t11 Rise time of SCL signal",
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          "conditions": "Fast mode; min printed as 20 + 0.1 CB, not numeric",
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        {
          "name": "t11 Rise time of SCL signal",
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        {
          "name": "t11 Rise time of SCL signal",
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          "typ": null,
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          "conditions": "High speed mode, CB = 400 pF max",
          "source_page": 8,
          "source": "datasheet"
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        {
          "name": "t11A Rise time of SCL after repeated start and after ACK bit",
          "symbol": "t11A",
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          "source_page": 8,
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        {
          "name": "t11A Rise time of SCL after repeated start and after ACK bit",
          "symbol": "t11A",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "Fast mode; min printed as 20 + 0.1 CB, not numeric",
          "source_page": 8,
          "source": "datasheet"
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        {
          "name": "t11A Rise time of SCL after repeated start and after ACK bit",
          "symbol": "t11A",
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          "typ": null,
          "max": 80,
          "conditions": "High speed mode, CB = 100 pF max",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "t11A Rise time of SCL after repeated start and after ACK bit",
          "symbol": "t11A",
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          "max": 160,
          "conditions": "High speed mode, CB = 400 pF max",
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          "source": "datasheet"
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        {
          "name": "t12 Fall time of SCL signal",
          "symbol": "t12",
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        {
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        {
          "name": "Pulse width of suppressed spike",
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        {
          "name": "VDD to GND",
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          "name": "Reference Input Voltage to GND",
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