component
CM2219-QFNTR
Public Made by Adomby adom
CIMO Analog To Digital Converters (ADC), QFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "cm2219-qfntr",
"version": "0.1.0",
"type": "component",
"description": "CIMO Analog To Digital Converters (ADC), QFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"data acquisition",
"cm2219-qfntr",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
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"README.md",
"cm2219-qfntr.kicad_sym",
"cm2219-qfntr.kicad_mod",
"cm2219-qfntr.glb",
"cm2219-qfntr.step",
"cm2219-qfntr.lbr",
"docs/hero.png",
"docs/cm2219-qfntr-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"cm2219-qfntr-hero.glb",
"cm2219-qfntr-hero.overlay.json",
"cm2219-qfntr-etched.glb"
],
"component": {
"mpn": "CM2219-QFNTR",
"manufacturer": "CIMO",
"package": "QFN-20-EP(4x4)",
"pin_count": 21,
"category": "Data Acquisition",
"subcategory": "Analog To Digital Converters (ADC)",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604438098956861440",
"parts": {
"symbol": "cm2219-qfntr.kicad_sym",
"footprint": "cm2219-qfntr.kicad_mod",
"model_3d": "cm2219-qfntr-hero.glb",
"model_3d_plain": "cm2219-qfntr-etched.glb",
"model_3d_step": "cm2219-qfntr-etched.step",
"model_3d_step_plain": "cm2219-qfntr.step",
"lbr": "cm2219-qfntr.lbr"
},
"distributor_links": {
"lcsc": "C42382207"
},
"distributor_check": {
"checked_at": "2026-10-18T06:39:57Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "VDD",
"type": "power_in",
"description": "Power supply, typically 4.5 V to 5.5 V; decouple with 10 μF and 100 nF capacitors."
},
{
"number": "2",
"name": "REF",
"type": "bidirectional",
"description": "Reference input/output: outputs 4.096 V when the internal reference is enabled, buffers REFIN (max VDD-0.5 V) when the buffer is enabled, or accepts an external reference of 0.5 V to VDD; must be decoupled with 10 μF placed as close to the pin as possible."
},
{
"number": "3",
"name": "REFIN",
"type": "bidirectional",
"description": "Internal unbuffered reference output when the internal reference is used (decouple with 0.1 μF), or external reference input of 0.5 V to 4.096 V that is buffered out on REF."
},
{
"number": "4",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "5",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "6",
"name": "IN4",
"type": "passive",
"description": "Analog input channel 4; in unipolar mode the positive input must stay between -0.1 V and VREF+0.1 V."
},
{
"number": "7",
"name": "IN5",
"type": "passive",
"description": "Analog input channel 5; in unipolar mode the positive input must stay between -0.1 V and VREF+0.1 V."
},
{
"number": "8",
"name": "IN6",
"type": "passive",
"description": "Analog input channel 6; in unipolar mode the positive input must stay between -0.1 V and VREF+0.1 V."
},
{
"number": "9",
"name": "IN7",
"type": "passive",
"description": "Analog input channel 7; in unipolar mode the positive input must stay between -0.1 V and VREF+0.1 V."
},
{
"number": "10",
"name": "COM",
"type": "passive",
"description": "Common input to which all IN[7:0] can be referenced; connect to 0 V or VREF/2, with COM limited to 0.1 V of ground (unipolar) or VREF/2 ±0.1 V (pseudo-bipolar)."
},
{
"number": "11",
"name": "CNV",
"type": "input",
"description": "Conversion input: a rising edge starts a conversion, and low level enables the SDO output as chip select."
},
{
"number": "12",
"name": "DIN",
"type": "input",
"description": "SPI serial data input used to write the 14-bit configuration register, sampled on SCK rising edges."
},
{
"number": "13",
"name": "SCK",
"type": "input",
"description": "SPI serial clock input."
},
{
"number": "14",
"name": "SDO",
"type": "output",
"description": "SPI serial data output; forced to high impedance when CNV is high."
},
{
"number": "15",
"name": "VIO",
"type": "power_in",
"description": "Digital interface supply, normally the same as the host interface supply (1.8 V, 2.5 V, 3 V or 5 V); electrical specification allows 1.8 V to VDD+0.3 V."
},
{
"number": "16",
"name": "IN0",
"type": "passive",
"description": "Analog input channel 0; in unipolar mode the positive input must stay between -0.1 V and VREF+0.1 V."
},
{
"number": "17",
"name": "IN1",
"type": "passive",
"description": "Analog input channel 1; in unipolar mode the positive input must stay between -0.1 V and VREF+0.1 V."
},
{
"number": "18",
"name": "IN2",
"type": "passive",
"description": "Analog input channel 2; in unipolar mode the positive input must stay between -0.1 V and VREF+0.1 V."
},
{
"number": "19",
"name": "IN3",
"type": "passive",
"description": "Analog input channel 3; in unipolar mode the positive input must stay between -0.1 V and VREF+0.1 V."
},
{
"number": "20",
"name": "VDD",
"type": "power_in",
"description": "Power supply, typically 4.5 V to 5.5 V; decouple with 10 μF and 100 nF capacitors."
},
{
"number": "21",
"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": [
"exposed pad 21 added from the footprint",
"dropped thermal pad ['EP'] absent from footprint"
],
"pages_sent": 29,
"cost_usd": 0.1189,
"at": "2026-10-18T06:37:38"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604438098956861440",
"pages": 29,
"sha256": "fccccf31d7653135",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 21,
"described": 21,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
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"units": "mm",
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"seat": "z = 0",
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],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "c9476a1612023de37f27b4972110ab6ac6dc0eaf5ac48957a2e1c497650082a5",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "cm2219-qfntr-etched.step",
"role": "eda",
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}
}