component
MAX31865AAP+T
Public Made by Adomby adom
Analog Devices Inc Maxim Integrated Analog To Digital Converters (ADC), SSOP-20-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"component": {
"mpn": "MAX31865AAP+T",
"manufacturer": "Analog Devices Inc Maxim Integrated",
"package": "SSOP-20-208mil",
"pin_count": 20,
"category": "Data Acquisition",
"subcategory": "Analog To Digital Converters (ADC)",
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"lcsc": "C779509",
"digikey": "MAX31865AAP+TTR-ND",
"mouser": "700-MAX31865AAP+T"
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"pn": "MAX31865AAP+TTR-ND",
"status": "found"
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"pins": [
{
"number": "1",
"name": "DRDY",
"type": "output",
"description": "Active-low, push-pull data-ready output that goes low when a new conversion result is in the data register and returns high after a read of the RTD resistance data register."
},
{
"number": "2",
"name": "DVDD",
"type": "power_in",
"description": "Digital supply voltage input; connect to a 3.3V supply and bypass to DGND with a 0.1µF capacitor."
},
{
"number": "3",
"name": "VDD",
"type": "power_in",
"description": "Analog supply voltage input; connect to a 3.3V supply and bypass to GND1 with a 0.1µF capacitor."
},
{
"number": "4",
"name": "BIAS",
"type": "power_out",
"description": "Bias voltage output (VBIAS) that can be disabled through the configuration register to reduce power dissipation when no conversions are running; connect to REFIN+."
},
{
"number": "5",
"name": "REFIN+",
"type": "input",
"description": "Positive reference voltage input; connect to BIAS and connect the reference resistor between REFIN+ and REFIN-."
},
{
"number": "6",
"name": "REFIN-",
"type": "input",
"description": "Negative reference voltage input; connect the reference resistor between REFIN+ and REFIN-."
},
{
"number": "7",
"name": "ISENSOR",
"type": "passive",
"description": "Low side of RREF; connect to REFIN-."
},
{
"number": "8",
"name": "FORCE+",
"type": "passive",
"description": "High-side RTD drive; connect to FORCE2 when using the 3-wire connection and is protected to ±45V."
},
{
"number": "9",
"name": "FORCE2",
"type": "passive",
"description": "Positive input used only in 3-wire mode; connect to FORCE+ for 3-wire, or to ground for 2-wire or 4-wire, and is protected to ±45V."
},
{
"number": "10",
"name": "RTDIN+",
"type": "input",
"description": "Positive RTD input, protected to ±45V."
},
{
"number": "11",
"name": "RTDIN-",
"type": "input",
"description": "Negative RTD input, protected to ±45V."
},
{
"number": "12",
"name": "FORCE-",
"type": "passive",
"description": "Low-side RTD return, protected to ±45V."
},
{
"number": "13",
"name": "GND2",
"type": "power_in",
"description": "Analog ground; connect to GND1."
},
{
"number": "14",
"name": "SDI",
"type": "input",
"description": "Serial-data input for the SPI-compatible interface."
},
{
"number": "15",
"name": "SCLK",
"type": "input",
"description": "Serial-data clock input for the SPI-compatible interface."
},
{
"number": "16",
"name": "CS",
"type": "input",
"description": "Active-low chip select; set CS low to enable the serial interface."
},
{
"number": "17",
"name": "SDO",
"type": "output",
"description": "Serial-data output for the SPI-compatible interface."
},
{
"number": "18",
"name": "DGND",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "19",
"name": "GND1",
"type": "power_in",
"description": "Analog ground; connect to GND2."
},
{
"number": "20",
"name": "N.C.",
"type": "unconnected",
"description": "Do not connect."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
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"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
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"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The datasheet lists the SSOP as '20 SSOP' with package code A20+1 (outline 21-0056) but does not pri; Pin types for analog terminals (ISENSOR, FORCE+, FORCE2, FORCE-) and BIAS were chosen from the funct"
],
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"at": "2026-10-18T02:08:51"
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"pages": 26,
"sha256": "88f540410eb8c2ac",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 20,
"described": 20,
"cites_pages": true,
"refuses_to_fabricate": true
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