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Ray Set visibility: public 9cbd2e7 4d ago
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  "type": "component",
  "slug": "ads8166irhbr",
  "title": "ADS8166IRHBR",
  "brief": "Texas Instruments Analog To Digital Converters (ADC), VQFN-32-EP(5x5). Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "data acquisition",
    "ads8166irhbr",
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  "component": {
    "mpn": "ADS8166IRHBR",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-32-EP(5x5)",
    "pin_count": 33,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ads8166",
    "parts": {
      "symbol": "ads8166irhbr.kicad_sym",
      "footprint": "ads8166irhbr.kicad_mod",
      "model_3d": "ads8166irhbr-hero.glb",
      "model_3d_plain": "ads8166irhbr-etched.glb",
      "model_3d_step": "ads8166irhbr-etched.step",
      "model_3d_step_plain": "ads8166irhbr.step",
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    "distributor_links": {
      "lcsc": "C1543345"
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    "distributor_check": {
      "checked_at": "2026-10-21T18:07:57Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
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    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground connection; 0V reference potential."
      },
      {
        "number": "2",
        "name": "DECAP",
        "type": "power_in",
        "description": "Decoupling capacitor pin; connect 1µF capacitor to GND for internal power supply."
      },
      {
        "number": "3",
        "name": "REFIO",
        "type": "bidirectional",
        "description": "External reference voltage input or internal 4.096V reference output; connect 1µF capacitor to GND."
      },
      {
        "number": "4",
        "name": "REFM",
        "type": "power_in",
        "description": "Reference ground potential; short externally to GND."
      },
      {
        "number": "5",
        "name": "REFP",
        "type": "bidirectional",
        "description": "Reference buffer output and ADC reference input; short pins 5 and 6 together."
      },
      {
        "number": "6",
        "name": "REFP",
        "type": "bidirectional",
        "description": "Reference buffer output and ADC reference input; short pins 5 and 6 together."
      },
      {
        "number": "7",
        "name": "REFby2",
        "type": "output",
        "description": "Analog output equal to half the REFP voltage; connect 1µF capacitor to GND."
      },
      {
        "number": "8",
        "name": "AIN-COM",
        "type": "input",
        "description": "Common analog input for pseudo-differential or single-ended reference configurations."
      },
      {
        "number": "9",
        "name": "AIN0",
        "type": "input",
        "description": "Analog input channel 0."
      },
      {
        "number": "10",
        "name": "AIN1",
        "type": "input",
        "description": "Analog input channel 1."
      },
      {
        "number": "11",
        "name": "AIN2",
        "type": "input",
        "description": "Analog input channel 2."
      },
      {
        "number": "12",
        "name": "AIN3",
        "type": "input",
        "description": "Analog input channel 3."
      },
      {
        "number": "13",
        "name": "AIN4",
        "type": "input",
        "description": "Analog input channel 4."
      },
      {
        "number": "14",
        "name": "AIN5",
        "type": "input",
        "description": "Analog input channel 5."
      },
      {
        "number": "15",
        "name": "AIN6",
        "type": "input",
        "description": "Analog input channel 6."
      },
      {
        "number": "16",
        "name": "AIN7",
        "type": "input",
        "description": "Analog input channel 7."
      },
      {
        "number": "17",
        "name": "ADC-INP",
        "type": "input",
        "description": "Positive ADC analog input."
      },
      {
        "number": "18",
        "name": "MUXOUT-P",
        "type": "output",
        "description": "Multiplexer positive analog output."
      },
      {
        "number": "19",
        "name": "MUXOUT-M",
        "type": "output",
        "description": "Multiplexer negative analog output."
      },
      {
        "number": "20",
        "name": "ADC-INM",
        "type": "input",
        "description": "Negative ADC analog input."
      },
      {
        "number": "21",
        "name": "GND",
        "type": "power_in",
        "description": "Ground connection; 0V reference potential."
      },
      {
        "number": "22",
        "name": "ALERT",
        "type": "output",
        "description": "Digital alert output, active high; logical OR of enabled channel comparator flags."
      },
      {
        "number": "23",
        "name": "CS",
        "type": "input",
        "description": "Chip select input, active low; device starts conversion on CS rising edge, SDO-x go high-impedance when CS high."
      },
      {
        "number": "24",
        "name": "SDI",
        "type": "input",
        "description": "Serial data input; transfers commands and configuration data into device via SPI."
      },
      {
        "number": "25",
        "name": "SCLK",
        "type": "input",
        "description": "Serial interface clock input; all data transfers synchronized to SCLK edges."
      },
      {
        "number": "26",
        "name": "SDO-0",
        "type": "tri_state",
        "description": "Serial data output 0; high-impedance when CS is high."
      },
      {
        "number": "27",
        "name": "SDO-1/SEQSTS",
        "type": "tri_state",
        "description": "Serial data output 1 or sequence status indicator; high-impedance when CS is high."
      },
      {
        "number": "28",
        "name": "READY",
        "type": "output",
        "description": "Multifunction output; reflects conversion status when CS high, protocol-dependent output when CS low."
      },
      {
        "number": "29",
        "name": "RST",
        "type": "input",
        "description": "Asynchronous reset input, active low; resets device to default register state."
      },
      {
        "number": "30",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital interface power supply; connect 1µF capacitor to GND."
      },
      {
        "number": "31",
        "name": "GND",
        "type": "power_in",
        "description": "Ground connection; 0V reference potential."
      },
      {
        "number": "32",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power supply, 3V to 5.5V range; connect 1µF capacitor to GND."
      },
      {
        "number": "EP",
        "name": "Thermal Pad",
        "type": "power_in",
        "description": "Exposed thermal pad; connect to GND."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ads8166",
        "pages": 86,
        "sha256": "fa97ed7844ff4a62",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    },
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      "footprint": "viewers/footprint.html"
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  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VQFN-32-EP(5x5)",
      "Category": "Data Acquisition",
      "Pins": "33"
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    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "fa97ed7844ff4a6269f2e1ebd4c4ee3fa612aa983f5e45e72d5d600976596e41",
      "rows": [
        {
          "name": "AVDD supply, internal reference",
          "symbol": "AVDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": 5,
          "max": 5.5,
          "conditions": "Internal reference",
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        {
          "name": "AVDD supply, external reference",
          "symbol": "AVDD",
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          "min": 3,
          "typ": 5,
          "max": 5.5,
          "conditions": "External reference",
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        {
          "name": "DVDD supply, operating",
          "symbol": "DVDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.65,
          "typ": 3,
          "max": 5.5,
          "conditions": "Operating",
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        {
          "name": "DVDD supply, specified throughput",
          "symbol": "DVDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.35,
          "typ": 3,
          "max": 5.5,
          "conditions": "Specified throughput",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Absolute input voltage, AINx to REFM (single-ended)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.1,
          "typ": null,
          "max": null,
          "conditions": "AINx to REFM and CHx_CHy_CFG = 00b; max printed as VREF + 0.1",
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        {
          "name": "Absolute input voltage, AINy to REFM",
          "symbol": "VIN",
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          "unit": "V",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "AINy to REFM and CHx_CHy_CFG = 01b",
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        {
          "name": "Absolute input voltage, AIN-COM (single-ended)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "REFIO input voltage",
          "symbol": "VREFIO",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.5,
          "typ": null,
          "max": null,
          "conditions": "REFIO configured as input pin; max printed as AVDD - 0.3",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Ambient temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": 25,
          "max": 125,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input current to any pin except supply pins",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "AVDD to GND",
          "symbol": "AVDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "DVDD to GND",
          "symbol": "DVDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "MUX input on-channel leakage current",
          "symbol": "ILMUX_ON",
          "kind": "electrical",
          "unit": "nA",
          "min": -750,
          "typ": 10,
          "max": 750,
          "conditions": "REFM < VIN < REFP",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Integral nonlinearity",
          "symbol": "INL",
          "kind": "electrical",
          "unit": "LSB",
          "min": -0.8,
          "typ": 0.35,
          "max": 0.8,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Differential nonlinearity",
          "symbol": "DNL",
          "kind": "electrical",
          "unit": "LSB",
          "min": -0.5,
          "typ": 0.2,
          "max": 0.5,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input offset error",
          "symbol": "VOS",
          "kind": "electrical",
          "unit": "LSB",
          "min": -10,
          "typ": 0.5,
          "max": 10,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input offset error match",
          "symbol": "",
          "kind": "electrical",
          "unit": "LSB",
          "min": -1,
          "typ": 0.5,
          "max": 1,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Gain error",
          "symbol": "GE",
          "kind": "electrical",
          "unit": "%FSR",
          "min": -0.06,
          "typ": 0.002,
          "max": 0.06,
          "conditions": "Referred to REFIO",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Gain error match",
          "symbol": "",
          "kind": "electrical",
          "unit": "%FSR",
          "min": -0.005,
          "typ": 0.0025,
          "max": 0.005,
          "conditions": "Referred to REFIO",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Gain error thermal drift",
          "symbol": "dGE/dT",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -1,
          "typ": 1,
          "max": 1,
          "conditions": "Referred to REFIO",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Signal-to-noise + distortion",
          "symbol": "SINAD",
          "kind": "electrical",
          "unit": "dB",
          "min": 91.6,
          "typ": 93.5,
          "max": null,
          "conditions": "fIN = 2kHz",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Signal-to-noise ratio",
          "symbol": "SNR",
          "kind": "electrical",
          "unit": "dB",
          "min": 91.8,
          "typ": 93.6,
          "max": null,
          "conditions": "fIN = 2kHz",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Reference buffer offset voltage",
          "symbol": "VRO",
          "kind": "electrical",
          "unit": "µV",
          "min": -250,
          "typ": null,
          "max": 250,
          "conditions": "VRO = VREFP − VREFIO, TA = 25°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "External series resistance (REFP decoupling)",
          "symbol": "RESR",
          "kind": "electrical",
          "unit": "Ω",
          "min": 0,
          "typ": null,
          "max": 1.3,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "REFIO output voltage",
          "symbol": "VREFIO",
          "kind": "electrical",
          "unit": "V",
          "min": 4.091,
          "typ": 4.096,
          "max": 4.101,
          "conditions": "TA = 25°C, REFIO configured as output pin",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Internal reference temperature drift",
          "symbol": "dVREFIO/dT",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": 4,
          "max": 18,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "REFIO input current",
          "symbol": "IREFIO",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "REFIO configured as input pin",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Analog supply current, ADS8166",
          "symbol": "IAVDD",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3,
          "max": 4.1,
          "conditions": "ADS8166, AVDD = 5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "SCLK high time",
          "symbol": "tph_CK",
          "kind": "timing",
          "unit": "tCLK",
          "min": 0.45,
          "typ": null,
          "max": 0.55,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "SCLK low time",
          "symbol": "tpl_CK",
          "kind": "timing",
          "unit": "tCLK",
          "min": 0.45,
          "typ": null,
          "max": 0.55,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Time offset: READY falling to next data valid on SDO",
          "symbol": "toff_STRDO_f",
          "kind": "timing",
          "unit": "ns",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Time offset: READY rising to next data valid on SDO",
          "symbol": "toff_STRDO_r",
          "kind": "timing",
          "unit": "ns",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
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