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Ray Set visibility: public 72adf17 4h ago
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{
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  "type": "component",
  "slug": "ads8661ipwr",
  "title": "ADS8661IPWR",
  "brief": "Texas Instruments Analog To Digital Converters (ADC), TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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  "component": {
    "mpn": "ADS8661IPWR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://www.ti.com/lit/ds/symlink/ads8661.pdf",
    "parts": {
      "symbol": "ads8661ipwr.kicad_sym",
      "footprint": "ads8661ipwr.kicad_mod",
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      "model_3d_plain": "ads8661ipwr-etched.glb",
      "model_3d_step": "ads8661ipwr-etched.step",
      "model_3d_step_plain": "ads8661ipwr.step",
      "lbr": "ads8661ipwr.lbr"
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    "distributor_links": {
      "lcsc": "C2669876",
      "digikey": "296-45425-2-ND",
      "mouser": "595-ADS8661IPWR"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T23:59:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-45425-2-ND",
        "status": "found"
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      "mouser": {
        "pn": "595-ADS8661IPWR",
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    },
    "pins": [
      {
        "number": "1",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground pin. Decouple with the DVDD pin."
      },
      {
        "number": "2",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog supply pin. Decouple with the AGND pin."
      },
      {
        "number": "3",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground pin. Decouple with the AVDD pin."
      },
      {
        "number": "4",
        "name": "REFIO",
        "type": "bidirectional",
        "description": "Internal reference output and external reference input pin. Decouple with REFGND."
      },
      {
        "number": "5",
        "name": "REFGND",
        "type": "power_in",
        "description": "Reference ground pin; short to the analog ground plane. Decouple with the REFIO and REFCAP pins."
      },
      {
        "number": "6",
        "name": "REFCAP",
        "type": "output",
        "description": "ADC reference buffer decoupling capacitor pin. Decouple with the REFGND pin."
      },
      {
        "number": "7",
        "name": "AIN_P",
        "type": "input",
        "description": "Analog input: positive. Decouple with the AIN_GND pin."
      },
      {
        "number": "8",
        "name": "AIN_GND",
        "type": "input",
        "description": "Analog input: negative. Decouple with the AIN_P pin."
      },
      {
        "number": "9",
        "name": "RST",
        "type": "input",
        "description": "Active low logic input to reset the device."
      },
      {
        "number": "10",
        "name": "SDI",
        "type": "input",
        "description": "Dual function: data input pin for serial communication, which also receives chain data in daisy-chain mode."
      },
      {
        "number": "11",
        "name": "CONVST/CS",
        "type": "input",
        "description": "Dual-functionality pin: active high CONVST starts conversion on a rising edge, and active low CS takes control of the data bus while SDO-x go to tri-state when CS is high."
      },
      {
        "number": "12",
        "name": "SCLK",
        "type": "input",
        "description": "Serial communication clock input pin for the serial interface; all system-synchronous data transfer protocols are timed with respect to SCLK."
      },
      {
        "number": "13",
        "name": "SDO-0",
        "type": "output",
        "description": "Serial communication data output 0."
      },
      {
        "number": "14",
        "name": "ALARM/SDO-1/GPO",
        "type": "output",
        "description": "Multi-function output pin that serves as an active high alarm, data output 1 for serial communication, or general-purpose output."
      },
      {
        "number": "15",
        "name": "RVS",
        "type": "output",
        "description": "Multi-function output pin for the serial interface; with CS high it reflects the internal ADCST status, and with CS low its behavior depends on the output protocol selected."
      },
      {
        "number": "16",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital supply pin. Decouple with the DGND pin."
      }
    ],
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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": [],
        "pages_sent": 21,
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        "at": "2026-11-05T23:59:39"
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        "pages": 72,
        "sha256": "f743878a6234825a",
        "source_tier": "mfr"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
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        "refuses_to_fabricate": true
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        "extents_mm": [
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  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TSSOP-16",
      "Category": "Data Acquisition",
      "Pins": "16"
    },
    "characteristics": {
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      "datasheet_sha256": "f743878a6234825a6f882edfb5757afb6c37b1442d1fd84ee6c34ecb75436979",
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          "name": "Analog input voltage AIN_P, AIN_GND to GND",
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          "name": "Analog input voltage AIN_P, AIN_GND to GND",
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          "name": "Storage temperature",
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          "name": "Analog supply voltage",
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          "name": "Full-scale input span (AIN_P to AIN_GND)",
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          "name": "Full-scale input span (AIN_P to AIN_GND)",
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          "kind": "electrical",
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          "min": -10.24,
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          "conditions": "Input range = ±2.5 × VREF",
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          "source": "datasheet"
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          "name": "Full-scale input span (AIN_P to AIN_GND)",
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          "min": -6.144,
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          "name": "Full-scale input span (AIN_P to AIN_GND)",
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          "conditions": "Input range = ±1.25 × VREF",
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          "source": "datasheet"
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          "name": "Full-scale input span (AIN_P to AIN_GND)",
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          "conditions": "Input range = ±0.625 × VREF",
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          "source": "datasheet"
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          "name": "Full-scale input span (AIN_P to AIN_GND)",
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          "name": "Full-scale input span (AIN_P to AIN_GND)",
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          "source": "datasheet"
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          "name": "Full-scale input span (AIN_P to AIN_GND)",
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          "name": "Full-scale input span (AIN_P to AIN_GND)",
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          "source": "datasheet"
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        {
          "name": "AIN_GND operating input range",
          "symbol": "",
          "kind": "electrical",
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          "min": -0.1,
          "typ": 0,
          "max": 0.1,
          "conditions": "All input ranges",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input impedance",
          "symbol": "RIN",
          "kind": "electrical",
          "unit": "MΩ",
          "min": 1.02,
          "typ": 1.2,
          "max": 1.38,
          "conditions": "At TA = 25°C, Input range = ±3 × VREF",
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        {
          "name": "Input impedance",
          "symbol": "RIN",
          "kind": "electrical",
          "unit": "MΩ",
          "min": 0.85,
          "typ": 1,
          "max": 1.15,
          "conditions": "At TA = 25°C, Input range = ±2.5 × VREF",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Input overvoltage protection voltage",
          "symbol": "VOVP",
          "kind": "electrical",
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          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "AVDD = 5 V, all input ranges",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Input overvoltage protection voltage",
          "symbol": "VOVP",
          "kind": "electrical",
          "unit": "V",
          "min": -15,
          "typ": null,
          "max": 15,
          "conditions": "AVDD = floating, all input ranges",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Differential nonlinearity",
          "symbol": "DNL",
          "kind": "electrical",
          "unit": "LSB",
          "min": -0.35,
          "typ": 0.1,
          "max": 0.35,
          "conditions": "All input ranges",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Integral nonlinearity",
          "symbol": "INL",
          "kind": "electrical",
          "unit": "LSB",
          "min": -0.35,
          "typ": 0.15,
          "max": 0.35,
          "conditions": "All input ranges",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Offset error, bipolar ranges",
          "symbol": "EO",
          "kind": "electrical",
          "unit": "mV",
          "min": -1,
          "typ": 0.2,
          "max": 1,
          "conditions": "At TA = 25°C, all bipolar ranges",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Offset error, unipolar ranges",
          "symbol": "EO",
          "kind": "electrical",
          "unit": "mV",
          "min": -2,
          "typ": 0.2,
          "max": 2,
          "conditions": "At TA = 25°C, all unipolar ranges",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Offset error drift with temperature",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -3,
          "typ": 0.75,
          "max": 3,
          "conditions": "All input ranges",
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          "source": "datasheet"
        },
        {
          "name": "Gain error",
          "symbol": "EG",
          "kind": "electrical",
          "unit": "%FSR",
          "min": -0.025,
          "typ": 0.01,
          "max": 0.025,
          "conditions": "At TA = 25°C, all input ranges",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Gain error drift with temperature",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -5,
          "typ": 1,
          "max": 5,
          "conditions": "All input ranges",
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          "source": "datasheet"
        },
        {
          "name": "Signal-to-noise ratio",
          "symbol": "SNR",
          "kind": "electrical",
          "unit": "dB",
          "min": 73,
          "typ": 73.5,
          "max": null,
          "conditions": "All input ranges",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Signal-to-noise + distortion",
          "symbol": "SINAD",
          "kind": "electrical",
          "unit": "dB",
          "min": 72.9,
          "typ": 73.4,
          "max": null,
          "conditions": "All input ranges",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Internal reference voltage on REFIO pin",
          "symbol": "VREFIO",
          "kind": "electrical",
          "unit": "V",
          "min": 4.095,
          "typ": 4.096,
          "max": 4.097,
          "conditions": "At TA = 25°C",
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          "source": "datasheet"
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        {
          "name": "Reference voltage to the ADC on REFCAP pin",
          "symbol": "VREFCAP",
          "kind": "electrical",
          "unit": "V",
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          "typ": 4.096,
          "max": 4.097,
          "conditions": "At TA = 25°C",
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          "source": "datasheet"
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        {
          "name": "External reference voltage on REFIO",
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          "kind": "electrical",
          "unit": "V",
          "min": 4.046,
          "typ": 4.096,
          "max": 4.146,
          "conditions": "REFIO pin configured as an input",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Analog power-supply voltage",
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          "min": 4.75,
          "typ": 5,
          "max": 5.25,
          "conditions": "",
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        {
          "name": "Digital power-supply voltage, operating range",
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          "min": 1.65,
          "typ": 3.3,
          "max": null,
          "conditions": "Operating range",
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          "source": "datasheet"
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        {
          "name": "Digital power-supply voltage, supply range for specified performance",
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          "kind": "electrical",
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          "min": 2.7,
          "typ": 3.3,
          "max": null,
          "conditions": "Supply range for specified performance",
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          "source": "datasheet"
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        {
          "name": "Junction-to-ambient thermal resistance",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 95.7,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-case (top) thermal resistance",
          "symbol": "RθJC(top)",
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