ADS8548SPMR

{
  "slug": "ads8548spmr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Analog To Digital Converters (ADC), LQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "data acquisition",
    "ads8548spmr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ads8548spmr.kicad_sym",
    "ads8548spmr.kicad_mod",
    "ads8548spmr.glb",
    "ads8548spmr.step",
    "ads8548spmr.lbr",
    "docs/hero.png",
    "docs/ads8548spmr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ads8548spmr-hero.glb",
    "ads8548spmr-hero.overlay.json"
  ],
  "component": {
    "mpn": "ADS8548SPMR",
    "manufacturer": "Texas Instruments",
    "package": "LQFP-64(10x10)",
    "pin_count": 64,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ads8548",
    "parts": {
      "symbol": "ads8548spmr.kicad_sym",
      "footprint": "ads8548spmr.kicad_mod",
      "model_3d": "ads8548spmr-hero.glb",
      "model_3d_plain": "ads8548spmr.glb",
      "model_3d_step": "ads8548spmr-etched.step",
      "model_3d_step_plain": "ads8548spmr.step",
      "lbr": "ads8548spmr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2670869",
      "digikey": "ADS8548SPMR-ND",
      "mouser": "595-ADS8548SPMR"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T07:16:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ADS8548SPMR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-ADS8548SPMR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "HVSS",
        "type": "power_in",
        "description": "Negative supply voltage for the analog inputs; decouple according to Power Supply Recommendations section."
      },
      {
        "number": "2",
        "name": "CH_D1",
        "type": "input",
        "description": "Analog input of channel D1; input voltage range controlled by RANGE pin in hardware mode or CONFIG bit C19 (RANGE_D) in software mode."
      },
      {
        "number": "3",
        "name": "REFDN",
        "type": "passive",
        "description": "Decoupling capacitor input for reference of channel pair D; connect to decoupling capacitor and AGND according to Power Supply Recommendations section."
      },
      {
        "number": "4",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power supply; decouple according to Power Supply Recommendations section."
      },
      {
        "number": "5",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground; connect to the analog ground plane."
      },
      {
        "number": "6",
        "name": "REFDP",
        "type": "passive",
        "description": "Decoupling capacitor input for channel pair D reference; connect to decoupling capacitor according to Power Supply Recommendations section."
      },
      {
        "number": "7",
        "name": "CH_D0",
        "type": "input",
        "description": "Analog input of channel D0; input voltage range controlled by RANGE pin in hardware mode or CONFIG bit C19 (RANGE_D) in software mode."
      },
      {
        "number": "8",
        "name": "PAR/SER",
        "type": "input",
        "description": "Interface mode selection input; when low, parallel interface is selected; when high, serial interface is enabled."
      },
      {
        "number": "9",
        "name": "STBY",
        "type": "input",
        "description": "Standby mode input in hardware mode; when low, entire device is powered down including conversion clock and reference; when high, device operates in normal mode."
      },
      {
        "number": "10",
        "name": "RESET",
        "type": "input",
        "description": "Reset input, active high; aborts ongoing conversions and resets Configuration register (CONFIG) to 000003FFh; valid reset pulse must be at least 50 ns long."
      },
      {
        "number": "11",
        "name": "REFEN/WR",
        "type": "input",
        "description": "Internal reference enable input in hardware mode; when high, internal reference is enabled; when low, external reference is applied at REFIO; write input in software mode."
      },
      {
        "number": "12",
        "name": "RD",
        "type": "input",
        "description": "Read data input; when low, parallel data output is enabled (if CS = 0); when high, data output is disabled; must be connected to DGND in serial mode."
      },
      {
        "number": "13",
        "name": "CS/FS",
        "type": "input",
        "description": "Chip-select input in parallel mode (when low, interface enabled; when high, disabled); frame synchronization input in serial mode with falling edge controlling frame transfer."
      },
      {
        "number": "14",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power supply; decouple according to Power Supply Recommendations section."
      },
      {
        "number": "15",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground; connect to the analog ground plane."
      },
      {
        "number": "16",
        "name": "DB15/SDO_D",
        "type": "output",
        "description": "Data bit 15 (MSB) in parallel mode and serial data output for channel pair D (output is sign extension for ADS8528 and ADS8548); when SEL_CD = 1, data from channel pair D available; when SEL_CD = 0, tie to DGND."
      },
      {
        "number": "17",
        "name": "DB14/SDO_C",
        "type": "output",
        "description": "Data bit 14 in parallel mode and serial data output for channel pair C (output is sign extension for ADS8528 and ADS8548); when SEL_CD = 1, pin is data output for channel pair C; when SEL_CD = 0, tie to DGND."
      },
      {
        "number": "18",
        "name": "DB13/SDO_B",
        "type": "output",
        "description": "Data bit 13 in parallel mode and serial data output for channel pair B (output is sign extension for ADS8528, MSB for ADS8548); when SEL_B = 1, data output for channel pair B; when SEL_B = 0, tie to DGND."
      },
      {
        "number": "19",
        "name": "DB12/SDO_A",
        "type": "output",
        "description": "Data bit 12 in parallel mode and serial data output for channel pair A (output is sign extension for ADS8528); when SEL_CD = 0, data from channel pair C also available; when SEL_CD = 0 and SEL_B = 0, SDO_A functions as single output for all eight channels."
      },
      {
        "number": "20",
        "name": "DB11/REFBUFEN",
        "type": "input",
        "description": "Data bit 11 in parallel mode (output is MSB for ADS8528); reference buffer enable input in hardware mode (when low, all internal reference buffers enabled; when high, disabled); connect to DGND or DVDD in software mode."
      },
      {
        "number": "21",
        "name": "DB10/SCLK",
        "type": "input",
        "description": "Data bit 10 in parallel mode; serial interface clock input."
      },
      {
        "number": "22",
        "name": "DB9/SDI",
        "type": "input",
        "description": "Data bit 9 in parallel mode; hardware mode connect to DGND; software mode serves as serial data input."
      },
      {
        "number": "23",
        "name": "DB8/DCEN",
        "type": "input",
        "description": "Data bit 8 in parallel mode; daisy-chain enable input in serial mode (when high, DB[3:0] serve as DCIN_[A:D]; if not used, connect to DGND)."
      },
      {
        "number": "24",
        "name": "DGND",
        "type": "power_in",
        "description": "Buffer I/O ground; connect to digital ground plane."
      },
      {
        "number": "25",
        "name": "DVDD",
        "type": "power_in",
        "description": "Buffer I/O supply; connect to digital supply and decouple according to Power Supply Recommendations section."
      },
      {
        "number": "26",
        "name": "DB7",
        "type": "passive",
        "description": "Data bit 7 in parallel mode; must be connected to DGND."
      },
      {
        "number": "27",
        "name": "DB6/SEL_B",
        "type": "input",
        "description": "Data bit 6 in parallel mode; select SDO_B input in serial mode (when low, SDO_B disabled; when high and SEL_CD = 0, data from channel pairs B and D available on SDO_B)."
      },
      {
        "number": "28",
        "name": "DB5/SEL_CD",
        "type": "input",
        "description": "Data bit 5 in parallel mode; select SDO_C and SDO_D input in serial mode (when high, data from C on SDO_C and D on SDO_D; when low, alternate multiplexing configuration)."
      },
      {
        "number": "29",
        "name": "DB4",
        "type": "passive",
        "description": "Data bit 4 in parallel mode; connect to DGND in serial mode."
      },
      {
        "number": "30",
        "name": "DB3/DCIN_A",
        "type": "input",
        "description": "Data bit 3 in parallel mode; daisy-chain data input for SDO_A of previous device when DCEN = 1; connect to DGND when DCEN = 0."
      },
      {
        "number": "31",
        "name": "DB2/DCIN_B",
        "type": "input",
        "description": "Data bit 2 in parallel mode; daisy-chain data input for SDO_B when DCEN = 1 and SEL_B = 1; connect to DGND when DCEN = 0."
      },
      {
        "number": "32",
        "name": "DB1/DCIN_C",
        "type": "input",
        "description": "Data bit 1 in parallel mode; daisy-chain data input for SDO_C when DCEN = 1 and SEL_CD = 1; connect to DGND when DCEN = 0."
      },
      {
        "number": "33",
        "name": "DB0/DCIN_D",
        "type": "input",
        "description": "Data bit 0 (LSB) in parallel mode; daisy-chain data input for SDO_D when DCEN = 1 and SEL_CD = 1; connect to DGND when DCEN = 0."
      },
      {
        "number": "34",
        "name": "RANGE/XCLK",
        "type": "input",
        "description": "Analog input voltage range select in hardware mode (low = ±4 VREF, high = ±2 VREF); external conversion clock input if CONFIG bit C29 = 1, or internal clock output if CONFIG bit C28 = 1, in software mode."
      },
      {
        "number": "35",
        "name": "BUSY/INT",
        "type": "output",
        "description": "Converter busy status output when CONFIG bit C27 = 0 (transitions high on conversion start, low pulse when channel pair conversion completes); interrupt output when C27 = 1 (transitions high after completion, remains high until next read)."
      },
      {
        "number": "36",
        "name": "ASLEEP",
        "type": "input",
        "description": "Auto-sleep enable input; when low, device operates in normal mode; when high, device functions in auto-sleep mode where conversion activated six clock cycles after CONVST pulse."
      },
      {
        "number": "37",
        "name": "CONVST_A",
        "type": "input",
        "description": "Conversion start of channel pair A; rising edge initiates simultaneous conversion of analog signals at CH_A[1:0] and resets internal channel state machine."
      },
      {
        "number": "38",
        "name": "CONVST_B",
        "type": "input",
        "description": "Conversion start of channel pair B; rising edge initiates simultaneous conversion of analog signals at CH_B[1:0]."
      },
      {
        "number": "39",
        "name": "CONVST_C",
        "type": "input",
        "description": "Conversion start of channel pair C; rising edge initiates simultaneous conversion of analog signals at CH_C[1:0]."
      },
      {
        "number": "40",
        "name": "CONVST_D",
        "type": "input",
        "description": "Conversion start of channel pair D; rising edge initiates simultaneous conversion of analog signals at CH_D[1:0]."
      },
      {
        "number": "41",
        "name": "HW/SW",
        "type": "input",
        "description": "Mode selection input; when low, hardware mode is selected and device functions according to external pin settings; when high, software mode is selected and configured via Configuration register."
      },
      {
        "number": "42",
        "name": "CH_A0",
        "type": "input",
        "description": "Analog input of channel A0 (master channel pair, always active); input voltage range controlled by RANGE pin in hardware mode or CONFIG bit C24 (RANGE_A) in software mode."
      },
      {
        "number": "43",
        "name": "REFAP",
        "type": "passive",
        "description": "Decoupling capacitor input for reference of channel pair A; connect to decoupling capacitor according to Power Supply Recommendations section."
      },
      {
        "number": "44",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground; connect to the analog ground plane."
      },
      {
        "number": "45",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power supply; decouple according to Power Supply Recommendations section."
      },
      {
        "number": "46",
        "name": "REFAN",
        "type": "passive",
        "description": "Decoupling capacitor input for reference of channel pair A; connect to decoupling capacitor and AGND according to Power Supply Recommendations section."
      },
      {
        "number": "47",
        "name": "CH_A1",
        "type": "input",
        "description": "Analog input of channel A1 (master channel pair, always active); input voltage range controlled by RANGE pin in hardware mode or CONFIG bit C24 (RANGE_A) in software mode."
      },
      {
        "number": "48",
        "name": "HVDD",
        "type": "power_in",
        "description": "Positive supply voltage for the analog inputs; decouple according to Power Supply Recommendations section."
      },
      {
        "number": "49",
        "name": "CH_B0",
        "type": "input",
        "description": "Analog input of channel B0; input voltage range controlled by RANGE pin in hardware mode or CONFIG bit C23 (RANGE_B) in software mode."
      },
      {
        "number": "50",
        "name": "REFBP",
        "type": "passive",
        "description": "Decoupling capacitor input for reference of channel pair B; connect to decoupling capacitor according to Power Supply Recommendations section."
      },
      {
        "number": "51",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground; connect to the analog ground plane."
      },
      {
        "number": "52",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power supply; decouple according to Power Supply Recommendations section."
      },
      {
        "number": "53",
        "name": "REFBN",
        "type": "passive",
        "description": "Decoupling capacitor input for reference of channel pair B; connect to decoupling capacitor and AGND according to Power Supply Recommendations section."
      },
      {
        "number": "54",
        "name": "CH_B1",
        "type": "input",
        "description": "Analog input of channel B1; input voltage range controlled by RANGE pin in hardware mode or CONFIG bit C23 (RANGE_B) in software mode."
      },
      {
        "number": "55",
        "name": "REFN",
        "type": "passive",
        "description": "Negative reference input/output pin; connect to decoupling capacitor and AGND according to Power Supply Recommendations section."
      },
      {
        "number": "56",
        "name": "REFIO",
        "type": "bidirectional",
        "description": "Reference voltage input/output; internal reference enabled by REFEN/WR pin in hardware mode or CONFIG bit C15 (REFEN) in software mode; output value controlled by internal DAC and CONFIG bits C[9:0]."
      },
      {
        "number": "57",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power supply; decouple according to Power Supply Recommendations section."
      },
      {
        "number": "58",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground; connect to the analog ground plane."
      },
      {
        "number": "59",
        "name": "CH_C1",
        "type": "input",
        "description": "Analog input of channel C1; input voltage range controlled by RANGE pin in hardware mode or CONFIG bit C21 (RANGE_C) in software mode."
      },
      {
        "number": "60",
        "name": "REFCN",
        "type": "passive",
        "description": "Decoupling capacitor input for reference of channel pair C; connect to decoupling capacitor and AGND according to Power Supply Recommendations section."
      },
      {
        "number": "61",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power supply; decouple according to Power Supply Recommendations section."
      },
      {
        "number": "62",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground; connect to the analog ground plane."
      },
      {
        "number": "63",
        "name": "REFCP",
        "type": "passive",
        "description": "Decoupling capacitor input for reference of channel pair C; connect to decoupling capacitor according to Power Supply Recommendations section."
      },
      {
        "number": "64",
        "name": "CH_C0",
        "type": "input",
        "description": "Analog input of channel C0; input voltage range controlled by RANGE pin in hardware mode or CONFIG bit C21 (RANGE_C) in software mode."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 15,
        "cost_usd": 0.3101,
        "at": "2026-10-07T07:15:47"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ads8548",
        "pages": 62,
        "sha256": "c3931541d3d34e55",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 64,
        "described": 64,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "role": "plain",
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        "units": "mm",
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        "seat": "z = 0",
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b0c827bc5c05552175d28affe44a5bd2ab45c9c36efff6ff07a74cc449b13db4",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ads8548spmr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "sha256": "d2172265b7ea0bc09c8da9df2ac2715d111d8f09c406e611ffef7066be497591",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}