component
AD7478AARMZ
Public Made by Adomby adom
Analog Devices Analog To Digital Converters (ADCs), MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627
{
"schema_version": 1,
"type": "component",
"slug": "ad7478aarmz",
"title": "AD7478AARMZ",
"brief": "Analog Devices Analog To Digital Converters (ADCs), MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"data converters",
"ad7478aarmz",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "AD7478AARMZ",
"manufacturer": "Analog Devices",
"package": "MSOP-8",
"pin_count": 8,
"category": "Data Converters",
"subcategory": "Analog To Digital Converters (ADCs)",
"datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/AD7476A_7477A_7478A.pdf",
"parts": {
"symbol": "ad7478aarmz.kicad_sym",
"footprint": "ad7478aarmz.kicad_mod",
"model_3d": "ad7478aarmz-hero.glb",
"model_3d_plain": "ad7478aarmz-etched.glb",
"model_3d_step": "ad7478aarmz-etched.step",
"model_3d_step_plain": "ad7478aarmz.step",
"lbr": "ad7478aarmz.lbr"
},
"distributor_links": {
"lcsc": "C651087",
"digikey": "AD7478AARMZ-ND",
"mouser": "584-AD7478AARMZ"
},
"distributor_check": {
"checked_at": "2026-10-30T15:53:00Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "AD7478AARMZ-ND",
"status": "found"
},
"mouser": {
"pn": "584-AD7478AARMZ",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "VDD",
"type": "power_in",
"description": "Power supply input; the VDD range is 2.35 V to 5.25 V and also sets the reference and the 0 V to VDD analog input range."
},
{
"number": "2",
"name": "SDATA",
"type": "output",
"description": "Serial data output carrying four leading zeros, 8 bits of conversion data MSB first, then four trailing zeros, clocked out on the falling edge of SCLK."
},
{
"number": "3",
"name": "CS",
"type": "input",
"description": "Active-low chip select that initiates conversions and frames the serial data transfer."
},
{
"number": "4",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "5",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "6",
"name": "SCLK",
"type": "input",
"description": "Serial clock input for accessing data from the part, also used as the clock source for the conversion process."
},
{
"number": "7",
"name": "GND",
"type": "power_in",
"description": "Analog ground reference point for all circuitry; refer all analog input signals to this voltage."
},
{
"number": "8",
"name": "VIN",
"type": "power_in",
"description": "Single-ended analog input channel with an input range of 0 V to VDD."
}
],
"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+vision",
"consensus_model": "claude-opus-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"vision extraction: provenance cannot be text-verified; needs consensus"
],
"pages_sent": 28,
"cost_usd": 0.9287,
"at": "2026-10-30T15:52:08"
},
"datasheet": {
"url": "https://www.analog.com/media/en/technical-documentation/data-sheets/AD7476A_7477A_7478A.pdf",
"pages": 28,
"sha256": "f7084789e08c0a5a",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 8,
"described": 8,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "ad7478aarmz.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4.9,
3,
0.95
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "847c4c5023fe1603fbd36900a5dcc4bd3901ba473f71d42c9a469f0236eaadf3",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ad7478aarmz-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4.9,
3,
0.95
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "efeaedb333ae92e115bdd66158c1103f090a1e286550824e8f97cf491a882864",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "RM-8",
"source_page": 26,
"D": {
"nom_mm": 3,
"range_mm": [
2.8,
3.2
]
},
"E1": {
"nom_mm": 3,
"range_mm": [
2.8,
3.2
]
},
"E": {
"nom_mm": 4.9,
"range_mm": [
4.65,
5.15
]
},
"e": {
"nom_mm": 0.65,
"range_mm": [
null,
null
]
},
"A": {
"nom_mm": 1.1,
"range_mm": [
null,
1.1
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "ad7478aarmz.step",
"verdict": "PASS",
"reasons": [
"height and body within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
},
"metadata": {
"specs": {
"Manufacturer": "Analog Devices",
"Package": "MSOP-8",
"Category": "Data Converters",
"Pins": "8"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "f7084789e08c0a5a8dd439319087211e679a6240e518fe57225c1a44edb498c9",
"rows": [
{
"name": "Supply voltage VDD",
"symbol": "VDD",
"kind": "recommended_operating",
"unit": "V",
"min": 2.35,
"typ": null,
"max": 5.25,
"conditions": "",
"source_page": 11,
"source": "datasheet"
},
{
"name": "VDD to GND",
"symbol": "VDD",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Analog input voltage to GND",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Digital input voltage to GND",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Digital output voltage to GND",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Input current to any pin except supplies",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 10,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Operating temperature range (commercial, A grade)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "Commercial (A and B Grades)",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Storage temperature range",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Junction temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "ESD rating (all other models)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "kV",
"min": null,
"typ": null,
"max": 3.5,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Linearity error (integral nonlinearity), ±0.3 maximum",
"symbol": "INL",
"kind": "electrical",
"unit": "LSB",
"min": -0.3,
"typ": null,
"max": 0.3,
"conditions": "",
"source_page": 27,
"source": "datasheet"
},
{
"name": "SCLK frequency, A and B grades",
"symbol": "fSCLK",
"kind": "timing",
"unit": "kHz",
"min": 10,
"typ": null,
"max": null,
"conditions": "A, B grades",
"source_page": 8,
"source": "datasheet"
},
{
"name": "SCLK frequency maximum",
"symbol": "fSCLK",
"kind": "timing",
"unit": "MHz",
"min": null,
"typ": null,
"max": 20,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "CS pulse width",
"symbol": "t1",
"kind": "timing",
"unit": "ns",
"min": 10,
"typ": null,
"max": null,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "CS to SCLK setup time",
"symbol": "t2",
"kind": "timing",
"unit": "ns",
"min": 10,
"typ": null,
"max": null,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Delay from CS until SDATA three-state disabled",
"symbol": "t3",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 22,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Data access time after SCLK falling edge",
"symbol": "t4",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 40,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "SCLK low pulse width",
"symbol": "t5",
"kind": "timing",
"unit": "tSCLK",
"min": 0.4,
"typ": null,
"max": null,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "SCLK high pulse width",
"symbol": "t6",
"kind": "timing",
"unit": "tSCLK",
"min": 0.4,
"typ": null,
"max": null,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "SCLK to data valid hold time",
"symbol": "t7",
"kind": "timing",
"unit": "ns",
"min": 10,
"typ": null,
"max": null,
"conditions": "VDD ≤ 3.3 V",
"source_page": 8,
"source": "datasheet"
},
{
"name": "SCLK to data valid hold time",
"symbol": "t7",
"kind": "timing",
"unit": "ns",
"min": 9.5,
"typ": null,
"max": null,
"conditions": "3.3 V < VDD ≤ 3.6 V",
"source_page": 8,
"source": "datasheet"
},
{
"name": "SCLK to data valid hold time",
"symbol": "t7",
"kind": "timing",
"unit": "ns",
"min": 7,
"typ": null,
"max": null,
"conditions": "VDD > 3.6 V",
"source_page": 8,
"source": "datasheet"
},
{
"name": "SCLK falling edge to SDATA high impedance",
"symbol": "t8",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 36,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Quiet time between bus relinquish and start of next conversion",
"symbol": "tQUIET",
"kind": "timing",
"unit": "ns",
"min": 50,
"typ": null,
"max": null,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Power-up time from full power-down",
"symbol": "tPOWER-UP",
"kind": "timing",
"unit": "μs",
"min": null,
"typ": null,
"max": 1,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Thermal impedance junction to ambient (MSOP)",
"symbol": "θJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 205.9,
"max": null,
"conditions": "MSOP package",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Thermal impedance junction to case (MSOP)",
"symbol": "θJC",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 43.74,
"max": null,
"conditions": "MSOP package",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Lead temperature, reflow soldering",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": 235,
"max": null,
"conditions": "Reflow (10 sec to 30 sec)",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Pb-free temperature soldering, reflow",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": 255,
"max": null,
"conditions": "Pb-free reflow",
"source_page": 10,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"ad7478aarmz"
],
"discovery_pitch": "AD7478AARMZ (Analog Devices) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"ad7478aarmz.kicad_sym",
"ad7478aarmz.kicad_mod",
"ad7478aarmz.glb",
"ad7478aarmz.step",
"ad7478aarmz.lbr",
"docs/hero.png",
"docs/ad7478aarmz-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"ad7478aarmz-hero.glb",
"ad7478aarmz-hero.overlay.json",
"ad7478aarmz-etched.glb"
],
"visibility": {
"public": true
}
}