LHA7724SEQG

{
  "slug": "lha7724seqg",
  "version": "0.1.0",
  "type": "component",
  "description": "Legendsemi Analog To Digital Converters (ADC), QFN-24-EP(4x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "data acquisition",
    "lha7724seqg",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lha7724seqg.kicad_sym",
    "lha7724seqg.kicad_mod",
    "lha7724seqg.glb",
    "lha7724seqg.step",
    "lha7724seqg.lbr",
    "docs/hero.png",
    "docs/lha7724seqg-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lha7724seqg-hero.glb",
    "lha7724seqg-hero.overlay.json",
    "lha7724seqg-etched.glb"
  ],
  "component": {
    "mpn": "LHA7724SEQG",
    "manufacturer": "Legendsemi",
    "package": "QFN-24-EP(4x5)",
    "pin_count": 25,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/9bde5d57f2729a0c32ffa90027e9ea33.pdf",
    "parts": {
      "symbol": "lha7724seqg.kicad_sym",
      "footprint": "lha7724seqg.kicad_mod",
      "model_3d": "lha7724seqg-hero.glb",
      "model_3d_plain": "lha7724seqg-etched.glb",
      "model_3d_step": "lha7724seqg-etched.step",
      "model_3d_step_plain": "lha7724seqg.step",
      "lbr": "lha7724seqg.lbr"
    },
    "distributor_links": {
      "lcsc": "C42459080"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T12:10:38Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "DRDY",
        "type": "output",
        "description": "Active-low data-ready output, driven low when new conversion data is ready to be retrieved."
      },
      {
        "number": "2",
        "name": "DOUT",
        "type": "tri_state",
        "description": "Serial interface data output, shifted out on SCLK falling edge and high-impedance when CS is high."
      },
      {
        "number": "3",
        "name": "DIN",
        "type": "input",
        "description": "Serial interface data input, shifted in on SCLK rising edge."
      },
      {
        "number": "4",
        "name": "CS",
        "type": "input",
        "description": "Active-low serial interface chip select."
      },
      {
        "number": "5",
        "name": "SYNC",
        "type": "input",
        "description": "Synchronization input, active on the rising edge."
      },
      {
        "number": "6",
        "name": "MFLAG",
        "type": "output",
        "description": "Modulator input-range overflow flag output, set high under over-range conditions."
      },
      {
        "number": "7",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground, connect to the digital ground plane."
      },
      {
        "number": "8",
        "name": "AVSS",
        "type": "power_in",
        "description": "Negative analog supply, 0 V to -2.6 V relative to DGND."
      },
      {
        "number": "9",
        "name": "REGCAPA",
        "type": "passive",
        "description": "Analog regulator capacitor pin; connect a capacitor of 100 nF or more (X7R)."
      },
      {
        "number": "10",
        "name": "AINP2",
        "type": "input",
        "description": "Positive analog input 2."
      },
      {
        "number": "11",
        "name": "AINN2",
        "type": "input",
        "description": "Negative analog input 2."
      },
      {
        "number": "12",
        "name": "AINP1",
        "type": "input",
        "description": "Positive analog input 1."
      },
      {
        "number": "13",
        "name": "AINN1",
        "type": "input",
        "description": "Negative analog input 1."
      },
      {
        "number": "14",
        "name": "AVDD",
        "type": "power_in",
        "description": "Positive analog supply, AVSS + 4.5 V to AVSS + 5.5 V."
      },
      {
        "number": "15",
        "name": "AVSS",
        "type": "power_in",
        "description": "Negative analog supply, 0 V to -2.6 V relative to DGND."
      },
      {
        "number": "16",
        "name": "VREFN",
        "type": "input",
        "description": "Negative reference input, AVSS - 0.1 V to VREFP - 1 V."
      },
      {
        "number": "17",
        "name": "VREFP",
        "type": "input",
        "description": "Positive reference input, VREFN + 1 V to AVDD + 0.1 V."
      },
      {
        "number": "18",
        "name": "PWDN",
        "type": "input",
        "description": "Active-low power-down input."
      },
      {
        "number": "19",
        "name": "RESET",
        "type": "input",
        "description": "Active-low reset input; hold low at least 2/fCLK to force a reset."
      },
      {
        "number": "20",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital supply, 1.65 V to 3.6 V."
      },
      {
        "number": "21",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground, connect to the digital ground plane."
      },
      {
        "number": "22",
        "name": "REGCAPD",
        "type": "power_out",
        "description": "1.8 V regulator output; connect a 1 uF capacitor to DGND."
      },
      {
        "number": "23",
        "name": "CLK",
        "type": "input",
        "description": "Master clock input, 8.192 MHz specified (1 to 8.192 MHz)."
      },
      {
        "number": "24",
        "name": "SCLK",
        "type": "input",
        "description": "Serial interface clock input; hold low when inactive."
      },
      {
        "number": "25",
        "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-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Thermal pad has no printed pin number; 'EP' is a placeholder. Datasheet says it is floating (浮空); ty; REGCAPA description says to connect the capacitor 'from CAPP to CAPN', but no such pins exist in the; Package figure (page 11/39 drawing) was not in the supplied text. The 24-pin QFN 5x4 mm is taken fro"
        ],
        "pages_sent": 26,
        "cost_usd": 0.221,
        "at": "2026-10-23T12:10:21"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/9bde5d57f2729a0c32ffa90027e9ea33.pdf",
        "pages": 39,
        "sha256": "fe3fc1d90c234ff8",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 25,
        "described": 25,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lha7724seqg.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          5.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dd34955bd2f41c7d5d4f45257df2b8077e42f694598de69e58ad55ad191eecae",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lha7724seqg-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          5.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ed32fd5440f4d9c73184ab538e5a949cbe3fb380a3af174c9e6de88356a130aa",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}