component
LHA5115SGQL
Public Made by Adomby adom
Legendsemi Analog To Digital Converters (ADC), QFN-40-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "LHA5115SGQL",
"brief": "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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"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",
"parts": {
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"lbr": "lha5115sgql.lbr"
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"distributor_links": {
"lcsc": "C42459211"
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"distributor_check": {
"checked_at": "2026-10-20T17:48:47Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
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"mouser": {
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},
"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)."
}
],
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"primary_model": "claude-haiku-5-5",
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"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"
},
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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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"metadata": {
"specs": {
"Manufacturer": "Legendsemi",
"Package": "QFN-40-EP(6x6)",
"Category": "Data Acquisition",
"Pins": "41"
},
"characteristics": {
"version": 1,
"source": "datasheet",
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"name": "Differential Input Voltage Range",
"symbol": "",
"kind": "electrical",
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"min": -20,
"typ": null,
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"conditions": "Specified performance",
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"source": "datasheet"
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{
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{
"name": "Gain Error",
"symbol": "",
"kind": "tolerance",
"unit": "% FS",
"min": -0.05,
"typ": null,
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"source_page": 6,
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{
"name": "Gain Drift",
"symbol": "",
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{
"name": "Integral Nonlinearity (INL)",
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"min": -0.001,
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{
"name": "Normal Mode Rejection",
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"unit": "dB",
"min": 71,
"typ": 90,
"max": null,
"conditions": "50 Hz ±1 Hz and 60 Hz ±1 Hz, internal clock, 20 SPS ODR (postfilter)",
"source_page": 6,
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{
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"min": 85,
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"source_page": 6,
"source": "datasheet"
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{
"name": "ADC Output Data Rate (ODR)",
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"min": 2.5,
"typ": null,
"max": 125000,
"conditions": "One channel, see Table 16",
"source_page": 6,
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{
"name": "Initial Accuracy REFOUT",
"symbol": "",
"kind": "tolerance",
"unit": "%",
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"conditions": "REFOUT, TA = 25°C",
"source_page": 6,
"source": "datasheet"
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{
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"kind": "temperature_coefficient",
"unit": "ppm/°C",
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"source_page": 6,
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{
"name": "Reference Temperature Coefficient (+12 value)",
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"kind": "temperature_coefficient",
"unit": "ppm/°C",
"min": null,
"typ": null,
"max": 12,
"conditions": "",
"source_page": 6,
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{
"name": "Reference Load Current",
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{
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"conditions": "Buffers disabled",
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