component
ADUM3470ARSZ
Public Made by Adomby adom
Analog Devices Digital Isolators, SSOP-20-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "adum3470arsz",
"version": "0.1.0",
"type": "component",
"description": "Analog Devices Digital Isolators, SSOP-20-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"communication interface chip-uart-485-232",
"adum3470arsz",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
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"path": "docs/hero.png"
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"docs/adum3470arsz-datasheet.pdf",
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"viewers/footprint.html",
"adum3470arsz-hero.glb",
"adum3470arsz-hero.overlay.json",
"adum3470arsz-etched.glb"
],
"component": {
"mpn": "ADUM3470ARSZ",
"manufacturer": "Analog Devices",
"package": "SSOP-20-208mil",
"pin_count": 20,
"category": "Communication Interface Chip/UART/485/232",
"subcategory": "Digital Isolators",
"datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/ADuM3470_3471_3472_3473_3474.pdf",
"parts": {
"symbol": "adum3470arsz.kicad_sym",
"footprint": "adum3470arsz.kicad_mod",
"model_3d": "adum3470arsz-hero.glb",
"model_3d_plain": "adum3470arsz-etched.glb",
"model_3d_step": "adum3470arsz-etched.step",
"model_3d_step_plain": "adum3470arsz.step",
"lbr": "adum3470arsz.lbr"
},
"distributor_links": {
"lcsc": "C660866",
"digikey": "ADUM3470ARSZ-ND",
"mouser": "584-ADUM3470ARSZ"
},
"distributor_check": {
"checked_at": "2026-10-31T18:41:38Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "ADUM3470ARSZ-ND",
"status": "found"
},
"mouser": {
"pn": "584-ADUM3470ARSZ",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "X1",
"type": "output",
"description": "Transformer Driver Output 1."
},
{
"number": "2",
"name": "GND1",
"type": "power_in",
"description": "Ground reference for the primary side of the isolator; internally connected to pin 10 and both should be tied to a common ground."
},
{
"number": "3",
"name": "NC",
"type": "unconnected",
"description": "No internal connection."
},
{
"number": "4",
"name": "X2",
"type": "output",
"description": "Transformer Driver Output 2."
},
{
"number": "5",
"name": "VIA",
"type": "input",
"description": "Logic Input A."
},
{
"number": "6",
"name": "VIB",
"type": "input",
"description": "Logic Input B."
},
{
"number": "7",
"name": "VIC",
"type": "input",
"description": "Logic Input C."
},
{
"number": "8",
"name": "VID",
"type": "input",
"description": "Logic Input D."
},
{
"number": "9",
"name": "VDDA",
"type": "power_in",
"description": "Supply voltage for the primary side, 3.0 V to 5.5 V; connect a 0.1 µF bypass capacitor from VDDA to GND1."
},
{
"number": "10",
"name": "GND1",
"type": "power_in",
"description": "Ground reference for the primary side of the isolator; internally connected to pin 2 and both should be tied to a common ground."
},
{
"number": "11",
"name": "GND2",
"type": "power_in",
"description": "Ground reference for the secondary side of the isolator; internally connected to pin 19 and both should be tied to a common ground."
},
{
"number": "12",
"name": "OC",
"type": "input",
"description": "Oscillator control pin: tied to VDD2 for open-loop (unregulated) mode, or connect a resistor to GND2 to run the secondary controller at 200 kHz to 1 MHz."
},
{
"number": "13",
"name": "VOD",
"type": "output",
"description": "Logic Output D."
},
{
"number": "14",
"name": "VOC",
"type": "output",
"description": "Logic Output C."
},
{
"number": "15",
"name": "VOB",
"type": "output",
"description": "Logic Output B."
},
{
"number": "16",
"name": "VOA",
"type": "output",
"description": "Logic Output A."
},
{
"number": "17",
"name": "FB",
"type": "input",
"description": "Feedback input from the secondary output voltage VISO via a resistor divider setting VFB to the 1.25 V reference (VISO = VFB × (R1 + R2)/R2); the divider is required even in open-loop mode for soft start."
},
{
"number": "18",
"name": "VDD2",
"type": "power_in",
"description": "Internal supply for the secondary side controller and Side 2 data channels; regulated to 5.0 V when VREG is sufficiently supplied, otherwise 3.0 V to 5.5 V, with a 0.1 µF bypass capacitor to GND2."
},
{
"number": "19",
"name": "GND2",
"type": "power_in",
"description": "Ground reference for the secondary side of the isolator; internally connected to pin 11 and both should be tied to a common ground."
},
{
"number": "20",
"name": "VREG",
"type": "power_in",
"description": "Input of the internal regulator powering the secondary side controller and Side 2 data channels; should be 5.5 V to 15 V to regulate VDD2 to 5.0 V."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: VDD2 can be an internally regulated 5.0 V output or an external 3.0–5.5 V supply input; classified a; X1/X2 transformer driver outputs are classified as output; datasheet does not state the electrical t"
],
"pages_sent": 16,
"cost_usd": 0.1789,
"at": "2026-10-31T18:41:22"
},
"datasheet": {
"url": "https://www.analog.com/media/en/technical-documentation/data-sheets/ADuM3470_3471_3472_3473_3474.pdf",
"pages": 34,
"sha256": "f9c7011f1ea8066b",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 20,
"described": 20,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
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"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
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7.2,
2.1
],
"zmin_mm": 0.0,
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"footprint_binding": "identity",
"sha256": "c9a01a276d0b4d9561efd58f2fcee56f52c1b6ab464ea7a0380cab4e87a924e6",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "adum3470arsz-etched.step",
"role": "eda",
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"sha256": "083435396aa913f04201ddfa31214680fa8cbabc56f76e6c2d3776f256009e8d",
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}
}