component
LTC1854CG#TRPBF
Public Made by Adomby adom
Analog Devices Analog To Digital Converters (ADC), SSOP-28-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"description": "Analog Devices Analog To Digital Converters (ADC), SSOP-28-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"data acquisition",
"ltc1854cg#trpbf",
"factory-2.0.0",
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"component": {
"mpn": "LTC1854CG#TRPBF",
"manufacturer": "Analog Devices",
"package": "SSOP-28-208mil",
"pin_count": 28,
"category": "Data Acquisition",
"subcategory": "Analog To Digital Converters (ADC)",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588908027197444096",
"parts": {
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"lbr": "ltc1854cg-trpbf.lbr"
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"distributor_links": {
"lcsc": "C678849",
"digikey": "LTC1854CG#TRPBF-ND",
"mouser": "584-LTC1854CG#TRPBF"
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"distributor_check": {
"checked_at": "2026-10-21T01:48:44Z",
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"status": "found",
"lifecycle": "Active"
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"pn": "584-LTC1854CG#TRPBF",
"status": "found",
"lifecycle": "Restricted Availability"
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},
"pins": [
{
"number": "1",
"name": "COM",
"type": "passive",
"description": "Common input is the negative reference point for all single-ended inputs and must be free of noise, typically tied to the analog ground plane; analog input range is ±10V with ±30V fault protection."
},
{
"number": "2",
"name": "CH0",
"type": "passive",
"description": "Analog MUX input CH0 accepts a ±10V input range and is fault protected to ±30V."
},
{
"number": "3",
"name": "CH1",
"type": "passive",
"description": "Analog MUX input CH1 accepts a ±10V input range and is fault protected to ±30V."
},
{
"number": "4",
"name": "CH2",
"type": "passive",
"description": "Analog MUX input CH2 accepts a ±10V input range and is fault protected to ±30V."
},
{
"number": "5",
"name": "CH3",
"type": "passive",
"description": "Analog MUX input CH3 accepts a ±10V input range and is fault protected to ±30V."
},
{
"number": "6",
"name": "CH4",
"type": "passive",
"description": "Analog MUX input CH4 accepts a ±10V input range and is fault protected to ±30V."
},
{
"number": "7",
"name": "CH5",
"type": "passive",
"description": "Analog MUX input CH5 accepts a ±10V input range and is fault protected to ±30V."
},
{
"number": "8",
"name": "CH6",
"type": "passive",
"description": "Analog MUX input CH6 accepts a ±10V input range and is fault protected to ±30V."
},
{
"number": "9",
"name": "CH7",
"type": "passive",
"description": "Analog MUX input CH7 accepts a ±10V input range and is fault protected to ±30V."
},
{
"number": "10",
"name": "MUXOUT+",
"type": "passive",
"description": "Positive MUX output must be connected to ADC+ for normal operation."
},
{
"number": "11",
"name": "MUXOUT–",
"type": "passive",
"description": "Negative MUX output must be connected to ADC- for normal operation."
},
{
"number": "12",
"name": "ADC+",
"type": "passive",
"description": "Positive analog input to the analog-to-digital converter, connected to MUXOUT+ for normal operation."
},
{
"number": "13",
"name": "ADC–",
"type": "passive",
"description": "Negative analog input to the analog-to-digital converter, connected to MUXOUT- for normal operation."
},
{
"number": "14",
"name": "AGND1",
"type": "power_in",
"description": "Analog ground."
},
{
"number": "15",
"name": "VREF",
"type": "power_out",
"description": "2.5V reference output that must be bypassed to analog ground with a 1µF tantalum capacitor."
},
{
"number": "16",
"name": "REFCOMP",
"type": "power_out",
"description": "Reference buffer output with nominal output voltage of 4.096V, bypassed to analog ground with a 10µF tantalum and a 0.1µF ceramic capacitor."
},
{
"number": "17",
"name": "AGND2",
"type": "power_in",
"description": "Analog ground."
},
{
"number": "18",
"name": "AGND3",
"type": "power_in",
"description": "Analog ground; this pin is the substrate connection."
},
{
"number": "19",
"name": "AVDD",
"type": "power_in",
"description": "5V analog supply, bypassed to analog ground with a 0.1µF ceramic and a 10µF tantalum capacitor."
},
{
"number": "20",
"name": "DVDD",
"type": "power_in",
"description": "5V digital supply, bypassed to digital ground with a 0.1µF ceramic and a 10µF tantalum capacitor."
},
{
"number": "21",
"name": "OVDD",
"type": "power_in",
"description": "Positive supply for the digital output buffers, specified from 3V to 5V and bypassed to digital ground with a 0.1µF ceramic and a 10µF tantalum capacitor."
},
{
"number": "22",
"name": "BUSY",
"type": "output",
"description": "Converter status output that is low while a conversion is in progress."
},
{
"number": "23",
"name": "SDO",
"type": "output",
"description": "Serial data output, enabled by RD low."
},
{
"number": "24",
"name": "DGND",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "25",
"name": "SDI",
"type": "input",
"description": "Serial data input, ignored when RD is high."
},
{
"number": "26",
"name": "SCK",
"type": "input",
"description": "Serial data clock, ignored when RD is high."
},
{
"number": "27",
"name": "RD",
"type": "input",
"description": "Active-low read input that enables the SDO output and the serial interface."
},
{
"number": "28",
"name": "CONVST",
"type": "input",
"description": "Conversion start input; the ADC starts a conversion on the rising edge of CONVST."
}
],
"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": [
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],
"pages_sent": 7,
"cost_usd": 0.0494,
"at": "2026-10-21T01:45:15"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588908027197444096",
"pages": 24,
"sha256": "b4b0460cd0e4ba75",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 28,
"described": 28,
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