AD7091R-8BCPZ

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  "type": "component",
  "slug": "ad7091r-8bcpz",
  "title": "AD7091R-8BCPZ",
  "brief": "Analog Devices Pre-ordered Chips, LFCSP-24(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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  "component": {
    "mpn": "AD7091R-8BCPZ",
    "manufacturer": "Analog Devices",
    "package": "LFCSP-24(4x4)",
    "pin_count": 25,
    "category": "Interface ICs",
    "subcategory": "Pre-ordered Chips",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/AD7091R-2_7091R-4_7091R-8.pdf",
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      "model_3d_step_plain": "ad7091r-8bcpz.step",
      "lbr": "ad7091r-8bcpz.lbr"
    },
    "distributor_links": {
      "lcsc": "C578385",
      "digikey": "505-AD7091R-8BCPZ-ND",
      "mouser": "584-AD7091R-8BCPZ"
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    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply input with a 2.7 V to 5.25 V range, to be decoupled to GND."
      },
      {
        "number": "2",
        "name": "REGCAP",
        "type": "passive",
        "description": "Internal regulator output decoupling pin, to be decoupled separately to GND with a 1.0 µF capacitor."
      },
      {
        "number": "3",
        "name": "REFIN/REFOUT",
        "type": "bidirectional",
        "description": "2.5 V voltage reference output, decoupled to GND (typically 2.2 µF), or overdriven by an external reference of 1.0 V to VDD."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Chip ground pin, the ground reference point for all circuitry on the AD7091R-8."
      },
      {
        "number": "5",
        "name": "MUXOUT",
        "type": "output",
        "description": "Multiplexer output; tie directly to ADCIN if no external filtering or buffering is needed, otherwise tie the conditioning network output to ADCIN."
      },
      {
        "number": "6",
        "name": "VIN0",
        "type": "input",
        "description": "Single-ended analog input 0 with a range of 0 V to VREF."
      },
      {
        "number": "7",
        "name": "VIN2",
        "type": "input",
        "description": "Single-ended analog input 2 with a range of 0 V to VREF."
      },
      {
        "number": "8",
        "name": "ALERT/BUSY/GPO0",
        "type": "output",
        "description": "Configurable alert output (conversion result outside limits), BUSY indicator during conversion, or general-purpose digital output; open-drain when used as ALERT or BUSY."
      },
      {
        "number": "9",
        "name": "VIN4",
        "type": "input",
        "description": "Single-ended analog input 4 with a range of 0 V to VREF."
      },
      {
        "number": "10",
        "name": "VIN6",
        "type": "input",
        "description": "Single-ended analog input 6 with a range of 0 V to VREF."
      },
      {
        "number": "11",
        "name": "VIN7",
        "type": "input",
        "description": "Single-ended analog input 7 with a range of 0 V to VREF."
      },
      {
        "number": "12",
        "name": "VIN5",
        "type": "input",
        "description": "Single-ended analog input 5 with a range of 0 V to VREF."
      },
      {
        "number": "13",
        "name": "GPO1",
        "type": "output",
        "description": "General-purpose digital output."
      },
      {
        "number": "14",
        "name": "VIN3",
        "type": "input",
        "description": "Single-ended analog input 3 with a range of 0 V to VREF."
      },
      {
        "number": "15",
        "name": "VIN1",
        "type": "input",
        "description": "Single-ended analog input 1 with a range of 0 V to VREF."
      },
      {
        "number": "16",
        "name": "ADCIN",
        "type": "input",
        "description": "ADC input giving access to the on-chip track-and-hold; tie to MUXOUT if no external filtering or buffering is required."
      },
      {
        "number": "17",
        "name": "GND",
        "type": "power_in",
        "description": "Chip ground pin, the ground reference point for all circuitry on the AD7091R-8."
      },
      {
        "number": "18",
        "name": "SDI",
        "type": "input",
        "description": "Serial data input for writing the on-chip control registers, clocked on the rising edge of SCLK, MSB first."
      },
      {
        "number": "19",
        "name": "SDO",
        "type": "output",
        "description": "Serial data output; conversion data clocked out MSB first on the falling edge of SCLK, with 13 SCLKs required to access the data."
      },
      {
        "number": "20",
        "name": "SCLK",
        "type": "input",
        "description": "Serial clock input."
      },
      {
        "number": "21",
        "name": "CONVST",
        "type": "input",
        "description": "Edge-triggered convert start input; the falling edge puts the track-and-hold into hold mode and initiates a conversion."
      },
      {
        "number": "22",
        "name": "VDRIVE",
        "type": "power_in",
        "description": "Logic power supply input setting the interface voltage, 1.8 V to 5.25 V, decoupled to GND with typically 10 µF and 0.1 µF."
      },
      {
        "number": "23",
        "name": "CS",
        "type": "input",
        "description": "Chip select input; when held low the serial bus is enabled and CS frames the output data on the SPI."
      },
      {
        "number": "24",
        "name": "RESET",
        "type": "input",
        "description": "Logic reset input."
      },
      {
        "number": "25",
        "name": "EPAD",
        "type": "passive",
        "description": "Exposed pad, not connected internally; recommended to be soldered to GND."
      }
    ],
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: EPAD is not connected internally per datasheet; typed passive, with soldering to GND only recommende; Pin types for REFIN/REFOUT, REGCAP and MUXOUT are inferred from the descriptions, because the datash"
        ],
        "pages_sent": 18,
        "cost_usd": 0.2004,
        "at": "2026-10-31T09:25:44"
      },
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        "pages": 39,
        "sha256": "9c0395b23368e515",
        "source_tier": "mfr"
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        "described": 25,
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        "refuses_to_fabricate": true
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  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices",
      "Package": "LFCSP-24(4x4)",
      "Category": "Interface ICs",
      "Pins": "25"
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          "name": "Integral Nonlinearity",
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          "conditions": "Guaranteed no missing codes to 12 bits",
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        {
          "name": "Offset Error",
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          "conditions": "TA = 25°C",
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        {
          "name": "Offset Error Matching",
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        {
          "name": "Gain Error",
          "symbol": "",
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        {
          "name": "Gain Error Matching",
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        {
          "name": "Gain Error Drift",
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        {
          "name": "Input Voltage Range (lower bound)",
          "symbol": "",
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          "min": 0,
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          "conditions": "At ADCIN; upper limit is VREF",
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          "name": "DC Leakage Current",
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          "name": "Input Capacitance",
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          "name": "Multiplexer On Resistance",
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          "name": "Multiplexer On Resistance",
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          "name": "Internal Reference Output",
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          "unit": "V",
          "min": 2.49,
          "typ": 2.5,
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          "conditions": "Internal reference output, TA = 25°C",
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          "name": "Reference Power-On Time",
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          "symbol": "VOL",
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          "conditions": "ISINK = 200 µA",
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          "name": "Conversion Time",
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          "conditions": "Full-scale step input",
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          "name": "Junction Temperature",
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          "name": "ESD Human Body Model",
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        {
          "name": "ESD Field Induced Charged Device Model",
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        {
          "name": "Thermal Resistance Junction-to-Ambient, 24-Lead LFCSP",
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          "kind": "thermal",
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