component
ADS131M08IRSNR
Public Made by Adomby adom
Texas Instruments Analog To Digital Converters (ADC), QFN-32(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"type": "component",
"slug": "ads131m08irsnr",
"title": "ADS131M08IRSNR",
"brief": "Texas Instruments Analog To Digital Converters (ADC), QFN-32(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
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],
"component": {
"mpn": "ADS131M08IRSNR",
"manufacturer": "Texas Instruments",
"package": "QFN-32(4x4)",
"pin_count": 33,
"category": "Data Acquisition",
"subcategory": "Analog To Digital Converters (ADC)",
"datasheet": "https://www.ti.com/cn/lit/gpn/ads131m08",
"parts": {
"symbol": "ads131m08irsnr.kicad_sym",
"footprint": "ads131m08irsnr.kicad_mod",
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"model_3d_step": "ads131m08irsnr-etched.step",
"model_3d_step_plain": "ads131m08irsnr.step",
"lbr": "ads131m08irsnr.lbr"
},
"distributor_links": {
"lcsc": "C5124126",
"digikey": "296-ADS131M08IRSNRTR-ND",
"mouser": "595-ADS131M08IRSNR"
},
"distributor_check": {
"checked_at": "2026-10-01T02:48:15Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-ADS131M08IRSNRTR-ND",
"status": "found",
"lifecycle": "Active"
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"pn": "595-ADS131M08IRSNR",
"status": "found"
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},
"pins": [
{
"number": "1",
"name": "AIN2P",
"type": "input",
"description": "Positive differential analog input 2; input voltage range AGND - 1.3V to AVDD when gain is 1-4, or AGND - 1.3V to AVDD - 1.8V when gain is 8-128."
},
{
"number": "2",
"name": "AIN2N",
"type": "input",
"description": "Negative differential analog input 2; input voltage range AGND - 1.3V to AVDD when gain is 1-4, or AGND - 1.3V to AVDD - 1.8V when gain is 8-128."
},
{
"number": "3",
"name": "AIN3N",
"type": "input",
"description": "Negative differential analog input 3; input voltage range AGND - 1.3V to AVDD when gain is 1-4, or AGND - 1.3V to AVDD - 1.8V when gain is 8-128."
},
{
"number": "4",
"name": "AIN3P",
"type": "input",
"description": "Positive differential analog input 3; input voltage range AGND - 1.3V to AVDD when gain is 1-4, or AGND - 1.3V to AVDD - 1.8V when gain is 8-128."
},
{
"number": "5",
"name": "AIN4P",
"type": "input",
"description": "Positive differential analog input 4; input voltage range AGND - 1.3V to AVDD when gain is 1-4, or AGND - 1.3V to AVDD - 1.8V when gain is 8-128."
},
{
"number": "6",
"name": "AIN4N",
"type": "input",
"description": "Negative differential analog input 4; input voltage range AGND - 1.3V to AVDD when gain is 1-4, or AGND - 1.3V to AVDD - 1.8V when gain is 8-128."
},
{
"number": "7",
"name": "AIN5N",
"type": "input",
"description": "Negative differential analog input 5; input voltage range AGND - 1.3V to AVDD when gain is 1-4, or AGND - 1.3V to AVDD - 1.8V when gain is 8-128."
},
{
"number": "8",
"name": "AIN5P",
"type": "input",
"description": "Positive differential analog input 5; input voltage range AGND - 1.3V to AVDD when gain is 1-4, or AGND - 1.3V to AVDD - 1.8V when gain is 8-128."
},
{
"number": "9",
"name": "AIN6P",
"type": "input",
"description": "Positive differential analog input 6; input voltage range AGND - 1.3V to AVDD when gain is 1-4, or AGND - 1.3V to AVDD - 1.8V when gain is 8-128."
},
{
"number": "10",
"name": "AIN6N",
"type": "input",
"description": "Negative differential analog input 6; input voltage range AGND - 1.3V to AVDD when gain is 1-4, or AGND - 1.3V to AVDD - 1.8V when gain is 8-128."
},
{
"number": "11",
"name": "AIN7N",
"type": "input",
"description": "Negative differential analog input 7; input voltage range AGND - 1.3V to AVDD when gain is 1-4, or AGND - 1.3V to AVDD - 1.8V when gain is 8-128."
},
{
"number": "12",
"name": "AIN7P",
"type": "input",
"description": "Positive differential analog input 7; input voltage range AGND - 1.3V to AVDD when gain is 1-4, or AGND - 1.3V to AVDD - 1.8V when gain is 8-128."
},
{
"number": "13",
"name": "AGND",
"type": "power_in",
"description": "Analog ground supply; connect to system ground plane."
},
{
"number": "14",
"name": "REFIN",
"type": "input",
"description": "External reference voltage input; accepts 1.1V to 1.3V; do not place capacitance on REFIN if current-detect mode is used."
},
{
"number": "15",
"name": "AVDD",
"type": "power_in",
"description": "Analog power supply 2.7V to 3.6V in normal operating mode; connect 1-µF capacitor to AGND."
},
{
"number": "16",
"name": "SYNC/RESET",
"type": "input",
"description": "Conversion synchronization or system reset input; active low; controls ADC conversion timing and device reset."
},
{
"number": "17",
"name": "CS",
"type": "input",
"description": "Serial interface chip select input; active low; initiates SPI communication frame."
},
{
"number": "18",
"name": "DRDY",
"type": "output",
"description": "Data ready output; active low pulse indicates new ADC conversion data available for readout."
},
{
"number": "19",
"name": "SCLK",
"type": "input",
"description": "Serial clock input for SPI communication; clocks data in and out of the ADC."
},
{
"number": "20",
"name": "DOUT",
"type": "output",
"description": "Serial data output from SPI interface; transmits ADC conversion data and status information."
},
{
"number": "21",
"name": "DIN",
"type": "input",
"description": "Serial data input for SPI communication; receives register addresses and command/data words."
},
{
"number": "22",
"name": "XTAL2",
"type": "output",
"description": "Crystal oscillator excitation output or external clock input for crystal or external clock source."
},
{
"number": "23",
"name": "XTAL1/CLKIN",
"type": "input",
"description": "Master clock input or crystal oscillator input; frequency 0.3MHz to 8.4MHz for high-resolution mode."
},
{
"number": "24",
"name": "CAP",
"type": "output",
"description": "Digital LDO regulator output; connect 220-nF bypass capacitor to DGND."
},
{
"number": "25",
"name": "DGND",
"type": "power_in",
"description": "Digital ground supply; connect to system ground plane."
},
{
"number": "26",
"name": "DVDD",
"type": "power_in",
"description": "Digital power supply 2.7V to 3.6V; connect 1-µF capacitor to DGND."
},
{
"number": "27",
"name": "NC",
"type": "unconnected",
"description": "No connection; leave unconnected or connect to AGND."
},
{
"number": "28",
"name": "AGND",
"type": "power_in",
"description": "Analog ground supply; connect to system ground plane."
},
{
"number": "29",
"name": "AIN0P",
"type": "input",
"description": "Positive differential analog input 0; input voltage range AGND - 1.3V to AVDD when gain is 1-4, or AGND - 1.3V to AVDD - 1.8V when gain is 8-128."
},
{
"number": "30",
"name": "AIN0N",
"type": "input",
"description": "Negative differential analog input 0; input voltage range AGND - 1.3V to AVDD when gain is 1-4, or AGND - 1.3V to AVDD - 1.8V when gain is 8-128."
},
{
"number": "31",
"name": "AIN1N",
"type": "input",
"description": "Negative differential analog input 1; input voltage range AGND - 1.3V to AVDD when gain is 1-4, or AGND - 1.3V to AVDD - 1.8V when gain is 8-128."
},
{
"number": "32",
"name": "AIN1P",
"type": "input",
"description": "Positive differential analog input 1; input voltage range AGND - 1.3V to AVDD when gain is 1-4, or AGND - 1.3V to AVDD - 1.8V when gain is 8-128."
},
{
"number": "33",
"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": {
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"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": [
"extractor flagged: Thermal pad (exposed pad on underside) is present but unnumbered in WQFN package; datasheet page 5 s; Analog input voltage ranges vary based on device gain setting; descriptions reflect recommended oper",
"exposed pad 33 added from the footprint"
],
"pages_sent": 18,
"cost_usd": 0.1717,
"at": "2026-10-01T02:47:58"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/ads131m08",
"pages": 119,
"sha256": "b5b15a08a7950103",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 33,
"described": 33,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
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},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "QFN-32(4x4)",
"Category": "Data Acquisition",
"Pins": "33"
}
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"email": "[email protected]"
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