LHA5115SGQL

{
  "slug": "lha5115sgql",
  "version": "0.1.0",
  "type": "component",
  "description": "Legendsemi Analog To Digital Converters (ADC), QFN-40-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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    "data acquisition",
    "lha5115sgql",
    "factory-2.0.0",
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  "component": {
    "mpn": "LHA5115SGQL",
    "manufacturer": "Legendsemi",
    "package": "QFN-40-EP(6x6)",
    "pin_count": 41,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/591e0b8249007309496c6e86162fa69b.pdf",
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    "distributor_links": {
      "lcsc": "C42459211"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T17:48:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VINCOM",
        "type": "input",
        "description": "Voltage input common; the reference for single-ended inputs, and it must be connected to analog ground."
      },
      {
        "number": "2",
        "name": "VIN0",
        "type": "input",
        "description": "Voltage input 0, referenced to VINCOM in single-ended mode or as the positive input of a differential pair with VIN1; inputs are ±10 V bipolar."
      },
      {
        "number": "3",
        "name": "VIN1",
        "type": "input",
        "description": "Voltage input 1, referenced to VINCOM in single-ended mode or as the negative input of a differential pair with VIN0; inputs are ±10 V bipolar."
      },
      {
        "number": "4",
        "name": "VIN2",
        "type": "input",
        "description": "Voltage input 2, referenced to VINCOM in single-ended mode or as the positive input of a differential pair with VIN3; inputs are ±10 V bipolar."
      },
      {
        "number": "5",
        "name": "VIN3",
        "type": "input",
        "description": "Voltage input 3, referenced to VINCOM in single-ended mode or as the negative input of a differential pair with VIN2; inputs are ±10 V bipolar."
      },
      {
        "number": "6",
        "name": "REFOUT",
        "type": "output",
        "description": "Internal reference buffered output at 2.5 V with respect to AVSS; decouple to AVSS with a 0.1 µF capacitor."
      },
      {
        "number": "7",
        "name": "REGCAPA",
        "type": "output",
        "description": "Analog LDO regulator output; decouple to AVSS with a 1 µF and a 0.1 µF capacitor."
      },
      {
        "number": "8",
        "name": "AVSS",
        "type": "power_in",
        "description": "Negative analog supply, ranging from −2.75 V to 0 V and nominally set to 0 V."
      },
      {
        "number": "9",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog supply voltage, ranging from 3.0 V to 5.5 V with respect to AVSS."
      },
      {
        "number": "10",
        "name": "DNC",
        "type": "unconnected",
        "description": "Do not connect; nothing may be connected to this pin, and it is internally connected to AVSS."
      },
      {
        "number": "11",
        "name": "VBIAS−",
        "type": "input",
        "description": "Voltage bias negative that sets the bias voltage for the voltage input AFE; connect to AVSS."
      },
      {
        "number": "12",
        "name": "XTAL1",
        "type": "input",
        "description": "Input 1 for the crystal oscillator."
      },
      {
        "number": "13",
        "name": "XTAL2/CLKIO",
        "type": "bidirectional",
        "description": "Input 2 for crystal or clock input/output; its function is set by the CLOCKSEL bit in the ADC Mode Register."
      },
      {
        "number": "14",
        "name": "DOUT/RDY",
        "type": "output",
        "description": "Serial data output and data-ready output; it is tristated when CS is high and goes low to flag conversion completion when CS is low and no register is being read."
      },
      {
        "number": "15",
        "name": "DIN",
        "type": "input",
        "description": "Serial data input to the ADC input shift register, clocked in on the SCLK rising edge."
      },
      {
        "number": "16",
        "name": "SCLK",
        "type": "input",
        "description": "Serial clock input for data transfers to and from the ADC, with a Schmitt-triggered input."
      },
      {
        "number": "17",
        "name": "CS",
        "type": "input",
        "description": "Active-low chip select; it can be hardwired low for 3-wire operation, and DOUT/RDY is tristated when CS is high."
      },
      {
        "number": "18",
        "name": "ERROR",
        "type": "bidirectional",
        "description": "Error input/output or general-purpose output, referenced between IOVDD and DGND, with function selected by the ERR_EN bits in the GPIOCON register."
      },
      {
        "number": "19",
        "name": "SYNC",
        "type": "input",
        "description": "Synchronization input that allows digital filter and modulator synchronization when using multiple devices."
      },
      {
        "number": "20",
        "name": "IOVDD",
        "type": "power_in",
        "description": "Digital input/output supply, ranging from 2 V to 5.5 V nominal and independent of AVDD; if AVSS is set to −2.5 V, IOVDD must not exceed 3.6 V."
      },
      {
        "number": "21",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "22",
        "name": "REGCAPD",
        "type": "output",
        "description": "Digital LDO regulator output, for decoupling only; decouple to DGND with a 1 µF capacitor."
      },
      {
        "number": "23",
        "name": "GPIO0",
        "type": "bidirectional",
        "description": "General-purpose input/output 0, with logic levels referred to AVDD and AVSS."
      },
      {
        "number": "24",
        "name": "GPIO1",
        "type": "bidirectional",
        "description": "General-purpose input/output 1, with logic levels referred to AVDD and AVSS."
      },
      {
        "number": "25",
        "name": "GPO2",
        "type": "output",
        "description": "General-purpose output 2, with logic levels referred to AVDD and AVSS."
      },
      {
        "number": "26",
        "name": "VIN4",
        "type": "input",
        "description": "Voltage input 4, referenced to VINCOM in single-ended mode or as the positive input of a differential pair with VIN5; inputs are ±10 V bipolar."
      },
      {
        "number": "27",
        "name": "VIN5",
        "type": "input",
        "description": "Voltage input 5, referenced to VINCOM in single-ended mode or as the negative input of a differential pair with VIN4; inputs are ±10 V bipolar."
      },
      {
        "number": "28",
        "name": "VIN6",
        "type": "input",
        "description": "Voltage input 6, referenced to VINCOM in single-ended mode or as the positive input of a differential pair with VIN7; inputs are ±10 V bipolar."
      },
      {
        "number": "29",
        "name": "VIN7",
        "type": "input",
        "description": "Voltage input 7, referenced to VINCOM in single-ended mode or as the negative input of a differential pair with VIN6; inputs are ±10 V bipolar."
      },
      {
        "number": "30",
        "name": "VIN8",
        "type": "input",
        "description": "Voltage input 8, referenced to VINCOM in single-ended mode or as the positive input of a differential pair with VIN9; inputs are ±10 V bipolar."
      },
      {
        "number": "31",
        "name": "VIN9",
        "type": "input",
        "description": "Voltage input 9, referenced to VINCOM in single-ended mode or as the negative input of a differential pair with VIN8; inputs are ±10 V bipolar."
      },
      {
        "number": "32",
        "name": "VIN10",
        "type": "input",
        "description": "Voltage input 10, referenced to VINCOM in single-ended mode or as the positive input of a differential pair with VIN11; inputs are ±10 V bipolar."
      },
      {
        "number": "33",
        "name": "VIN11",
        "type": "input",
        "description": "Voltage input 11, referenced to VINCOM in single-ended mode or as the negative input of a differential pair with VIN10; inputs are ±10 V bipolar."
      },
      {
        "number": "34",
        "name": "VIN12",
        "type": "input",
        "description": "Voltage input 12, referenced to VINCOM in single-ended mode or as the positive input of a differential pair with VIN13; inputs are ±10 V bipolar."
      },
      {
        "number": "35",
        "name": "VIN13",
        "type": "input",
        "description": "Voltage input 13, referenced to VINCOM in single-ended mode or as the negative input of a differential pair with VIN12; inputs are ±10 V bipolar."
      },
      {
        "number": "36",
        "name": "VIN14",
        "type": "input",
        "description": "Voltage input 14, referenced to VINCOM in single-ended mode or as the positive input of a differential pair with VIN15; inputs are ±10 V bipolar."
      },
      {
        "number": "37",
        "name": "VIN15",
        "type": "input",
        "description": "Voltage input 15, referenced to VINCOM in single-ended mode or as the negative input of a differential pair with VIN14; inputs are ±10 V bipolar."
      },
      {
        "number": "38",
        "name": "GPO3",
        "type": "output",
        "description": "General-purpose output 3, with logic levels referred to AVDD and AVSS."
      },
      {
        "number": "39",
        "name": "REF−",
        "type": "input",
        "description": "Reference input negative terminal; the REF- voltage can span from AVSS to AVDD − 1 V and is selected through the REF_SELx bits."
      },
      {
        "number": "40",
        "name": "REF+",
        "type": "input",
        "description": "Reference input positive terminal for an external reference applied between REF+ and REF-; the datasheet states the REF+ voltage can span from AVDD to AVSS + 1 V and is selected through the REF_SELx bits."
      },
      {
        "number": "41",
        "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: DNC is marked 'Do Not Connect' in the datasheet and is internally tied to AVSS; typed as unconnected; Datasheet type is AI/DI (analog input / digital input); typed as bidirectional because it doubles as; Datasheet type is DO; typed as output. The pin is tristated when CS is high, so tri_state may be mor",
          "exposed pad 41 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint",
          "1/41 pins cited to the wrong page (name found elsewhere): ['12:XTAL1@p10']"
        ],
        "pages_sent": 15,
        "cost_usd": 0.115,
        "at": "2026-10-20T17:46:52"
      },
      "datasheet": {
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        "pages": 48,
        "sha256": "18d520ec3a3bbaa9",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 41,
        "described": 41,
        "cites_pages": true,
        "refuses_to_fabricate": true
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