ADC3421IRTQT

{
  "slug": "adc3421irtqt",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Analog To Digital Converters (ADC), QFN-56-EP(8x8). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "data acquisition",
    "adc3421irtqt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "adc3421irtqt.kicad_sym",
    "adc3421irtqt.kicad_mod",
    "adc3421irtqt.glb",
    "adc3421irtqt.step",
    "adc3421irtqt.lbr",
    "docs/hero.png",
    "docs/adc3421irtqt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "adc3421irtqt-hero.glb",
    "adc3421irtqt-hero.overlay.json"
  ],
  "component": {
    "mpn": "ADC3421IRTQT",
    "manufacturer": "Texas Instruments",
    "package": "QFN-56-EP(8x8)",
    "pin_count": 57,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://www.ti.com/cn/lit/gpn/adc3422",
    "parts": {
      "symbol": "adc3421irtqt.kicad_sym",
      "footprint": "adc3421irtqt.kicad_mod",
      "model_3d": "adc3421irtqt-hero.glb",
      "model_3d_plain": "adc3421irtqt.glb",
      "model_3d_step": "adc3421irtqt-etched.step",
      "model_3d_step_plain": "adc3421irtqt.step",
      "lbr": "adc3421irtqt.lbr"
    },
    "distributor_links": {
      "lcsc": "C2864896",
      "digikey": "296-43008-2-ND",
      "mouser": "595-ADC3421IRTQT"
    },
    "distributor_check": {
      "checked_at": "2026-10-12T10:03:23Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-43008-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-ADC3421IRTQT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "DA1P",
        "type": "output",
        "description": "Positive serial LVDS output for wire-1 of channel A; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "2",
        "name": "DA1M",
        "type": "output",
        "description": "Negative serial LVDS output for wire-1 of channel A; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "3",
        "name": "DA0P",
        "type": "output",
        "description": "Positive serial LVDS output for wire-0 of channel A; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "4",
        "name": "DA0M",
        "type": "output",
        "description": "Negative serial LVDS output for wire-0 of channel A; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "5",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital 1.8-V power supply; recommended range 1.7 V to 1.9 V."
      },
      {
        "number": "6",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog 1.8-V power supply; recommended range 1.7 V to 1.9 V."
      },
      {
        "number": "7",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog 1.8-V power supply; recommended range 1.7 V to 1.9 V."
      },
      {
        "number": "8",
        "name": "INAM",
        "type": "input",
        "description": "Negative differential analog input for channel A; input common-mode is VCM ± 0.025 V."
      },
      {
        "number": "9",
        "name": "INAP",
        "type": "input",
        "description": "Positive differential analog input for channel A; input common-mode is VCM ± 0.025 V."
      },
      {
        "number": "10",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog 1.8-V power supply; recommended range 1.7 V to 1.9 V."
      },
      {
        "number": "11",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog 1.8-V power supply; recommended range 1.7 V to 1.9 V."
      },
      {
        "number": "12",
        "name": "INBP",
        "type": "input",
        "description": "Positive differential analog input for channel B; input common-mode is VCM ± 0.025 V."
      },
      {
        "number": "13",
        "name": "INBM",
        "type": "input",
        "description": "Negative differential analog input for channel B; input common-mode is VCM ± 0.025 V."
      },
      {
        "number": "14",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog 1.8-V power supply; recommended range 1.7 V to 1.9 V."
      },
      {
        "number": "15",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog 1.8-V power supply; recommended range 1.7 V to 1.9 V."
      },
      {
        "number": "16",
        "name": "SCLK",
        "type": "input",
        "description": "Serial interface clock input with an internal 150-kΩ pulldown; absolute maximum is 3.9 V."
      },
      {
        "number": "17",
        "name": "SDATA",
        "type": "input",
        "description": "Serial interface data input with an internal 150-kΩ pulldown; absolute maximum is 3.9 V."
      },
      {
        "number": "18",
        "name": "SEN",
        "type": "input",
        "description": "Serial interface enable, active low, with an internal 150-kΩ pullup to AVDD; absolute maximum is 3.9 V."
      },
      {
        "number": "19",
        "name": "SDOUT",
        "type": "output",
        "description": "Serial interface data output."
      },
      {
        "number": "20",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog 1.8-V power supply; recommended range 1.7 V to 1.9 V."
      },
      {
        "number": "21",
        "name": "CLKM",
        "type": "input",
        "description": "Negative differential clock input for the ADC; input clock amplitude is 0.2 to 1.5 VPP for sine wave (ac-coupled) and common-mode is 0.95 V."
      },
      {
        "number": "22",
        "name": "CLKP",
        "type": "input",
        "description": "Positive differential clock input for the ADC; input clock amplitude is 0.2 to 1.5 VPP for sine wave (ac-coupled) and common-mode is 0.95 V."
      },
      {
        "number": "23",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog 1.8-V power supply; recommended range 1.7 V to 1.9 V."
      },
      {
        "number": "24",
        "name": "RESET",
        "type": "input",
        "description": "Hardware reset, active high, with an internal 150-kΩ pulldown; absolute maximum is 3.9 V."
      },
      {
        "number": "25",
        "name": "SYSREFP",
        "type": "input",
        "description": "Positive external SYSREF input; absolute range is -0.3 V to AVDD + 0.3 V."
      },
      {
        "number": "26",
        "name": "SYSREFM",
        "type": "input",
        "description": "Negative external SYSREF input; absolute range is -0.3 V to AVDD + 0.3 V."
      },
      {
        "number": "27",
        "name": "VCM",
        "type": "output",
        "description": "Common-mode voltage for analog inputs, nominally 0.95 V."
      },
      {
        "number": "28",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog 1.8-V power supply; recommended range 1.7 V to 1.9 V."
      },
      {
        "number": "29",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog 1.8-V power supply; recommended range 1.7 V to 1.9 V."
      },
      {
        "number": "30",
        "name": "INCM",
        "type": "input",
        "description": "Negative differential analog input for channel C; input common-mode is VCM ± 0.025 V."
      },
      {
        "number": "31",
        "name": "INCP",
        "type": "input",
        "description": "Positive differential analog input for channel C; input common-mode is VCM ± 0.025 V."
      },
      {
        "number": "32",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog 1.8-V power supply; recommended range 1.7 V to 1.9 V."
      },
      {
        "number": "33",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog 1.8-V power supply; recommended range 1.7 V to 1.9 V."
      },
      {
        "number": "34",
        "name": "INDP",
        "type": "input",
        "description": "Positive differential analog input for channel D; input common-mode is VCM ± 0.025 V."
      },
      {
        "number": "35",
        "name": "INDM",
        "type": "input",
        "description": "Negative differential analog input for channel D; input common-mode is VCM ± 0.025 V."
      },
      {
        "number": "36",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog 1.8-V power supply; recommended range 1.7 V to 1.9 V."
      },
      {
        "number": "37",
        "name": "PDN",
        "type": "input",
        "description": "Power-down control, configurable via SPI, with an internal 150-kΩ pulldown; absolute maximum is 3.9 V."
      },
      {
        "number": "38",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital 1.8-V power supply; recommended range 1.7 V to 1.9 V."
      },
      {
        "number": "39",
        "name": "DD1P",
        "type": "output",
        "description": "Positive serial LVDS output for wire-1 of channel D; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "40",
        "name": "DD1M",
        "type": "output",
        "description": "Negative serial LVDS output for wire-1 of channel D; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "41",
        "name": "DD0P",
        "type": "output",
        "description": "Positive serial LVDS output for wire-0 of channel D; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "42",
        "name": "DD0M",
        "type": "output",
        "description": "Negative serial LVDS output for wire-0 of channel D; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "43",
        "name": "DC1P",
        "type": "output",
        "description": "Positive serial LVDS output for wire-1 of channel C; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "44",
        "name": "DC1M",
        "type": "output",
        "description": "Negative serial LVDS output for wire-1 of channel C; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "45",
        "name": "DC0P",
        "type": "output",
        "description": "Positive serial LVDS output for wire-0 of channel C; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "46",
        "name": "DC0M",
        "type": "output",
        "description": "Negative serial LVDS output for wire-0 of channel C; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "47",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital 1.8-V power supply; recommended range 1.7 V to 1.9 V."
      },
      {
        "number": "48",
        "name": "FCLKP",
        "type": "output",
        "description": "Positive frame clock output; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "49",
        "name": "FCLKM",
        "type": "output",
        "description": "Negative frame clock output; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "50",
        "name": "DCLKP",
        "type": "output",
        "description": "Positive bit clock output; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "51",
        "name": "DCLKM",
        "type": "output",
        "description": "Negative bit clock output; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "52",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital 1.8-V power supply; recommended range 1.7 V to 1.9 V."
      },
      {
        "number": "53",
        "name": "DB1P",
        "type": "output",
        "description": "Positive serial LVDS output for wire-1 of channel B; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "54",
        "name": "DB1M",
        "type": "output",
        "description": "Negative serial LVDS output for wire-1 of channel B; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "55",
        "name": "DB0P",
        "type": "output",
        "description": "Positive serial LVDS output for wire-0 of channel B; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "56",
        "name": "DB0M",
        "type": "output",
        "description": "Negative serial LVDS output for wire-0 of channel B; the single-ended load is specified as 100 Ω with at most 3.3 pF from each output pin to GND."
      },
      {
        "number": "57",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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 GND PowerPAD (exposed thermal pad on the package back side) is listed in the pin table as 'GND' ; Pin numbers and names come from the 'Pin Functions' table on page 4. The pin-diagram text on page 3 ; The datasheet describes the 'Digital outputs' load limits (100 Ω single-ended, 3.3 pF max) in sectio",
          "exposed pad 57 added from the footprint"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0915,
        "at": "2026-10-12T10:03:04"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/adc3422",
        "pages": 80,
        "sha256": "48d3d273984a8052",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 57,
        "described": 57,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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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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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "54eb482f12c9d8b70c1bfc78306a1c34f412f3556e225cbd097840e5abdb7981",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "adc3421irtqt-etched.step",
        "role": "eda",
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        "origin": "footprint origin = pad-pattern centre",
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        "extents_mm": [
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        "sha256": "21c394e8188c75b12658a3b1c648c0a6203bdc1433bd4cdfb53e1957ecc3b86f",
        "checked": "2026-10-12",
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  }
}