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Ray Set visibility: public e9bf1bc 1d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "adum1241arsz",
  "title": "ADUM1241ARSZ",
  "brief": "Analog Devices Digital Isolators, SSOP-20-208mil. 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",
    "communication interface chip-uart-485-232",
    "adum1241arsz",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ADUM1241ARSZ",
    "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/adum1240-adum1241-adum1245-adum1246.pdf",
    "parts": {
      "symbol": "adum1241arsz.kicad_sym",
      "footprint": "adum1241arsz.kicad_mod",
      "model_3d": "adum1241arsz-hero.glb",
      "model_3d_plain": "adum1241arsz-etched.glb",
      "model_3d_step": "adum1241arsz-etched.step",
      "model_3d_step_plain": "adum1241arsz.step",
      "lbr": "adum1241arsz.lbr"
    },
    "distributor_links": {
      "lcsc": "C660284",
      "digikey": "505-ADUM1241ARSZ-ND",
      "mouser": "584-ADUM1241ARSZ"
    },
    "distributor_check": {
      "checked_at": "2026-11-02T16:52:12Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "505-ADUM1241ARSZ-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "584-ADUM1241ARSZ",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD1",
        "type": "power_in",
        "description": "Supply voltage for isolator Side 1 (2.25 V to 3.6 V); connect a ceramic bypass capacitor of 0.01 µF to 0.1 µF between VDD1 and GND1."
      },
      {
        "number": "2",
        "name": "GND1",
        "type": "power_in",
        "description": "Ground reference for isolator Side 1; pin 2 and pin 10 are internally connected, and connecting both to GND1 is recommended."
      },
      {
        "number": "3",
        "name": "NIC",
        "type": "unconnected",
        "description": "Not internally connected; leave this pin floating."
      },
      {
        "number": "4",
        "name": "NIC",
        "type": "unconnected",
        "description": "Not internally connected; leave this pin floating."
      },
      {
        "number": "5",
        "name": "VOA",
        "type": "output",
        "description": "Logic Output A."
      },
      {
        "number": "6",
        "name": "VIB",
        "type": "input",
        "description": "Logic Input B."
      },
      {
        "number": "7",
        "name": "EN1",
        "type": "input",
        "description": "Refresh and watchdog enable 1; connecting to GND1 enables input/output refresh and watchdog for Side 1, while tying to VDD1 disables them for lowest power operation, and EN1 and EN2 must be set to the same logic state."
      },
      {
        "number": "8",
        "name": "NIC",
        "type": "unconnected",
        "description": "Not internally connected; leave this pin floating."
      },
      {
        "number": "9",
        "name": "NIC",
        "type": "unconnected",
        "description": "Not internally connected; leave this pin floating."
      },
      {
        "number": "10",
        "name": "GND1",
        "type": "power_in",
        "description": "Ground reference for isolator Side 1; pin 2 and pin 10 are internally connected, and connecting both to GND1 is recommended."
      },
      {
        "number": "11",
        "name": "GND2",
        "type": "power_in",
        "description": "Ground reference for isolator Side 2; pin 11 and pin 19 are internally connected, and connecting both to GND2 is recommended."
      },
      {
        "number": "12",
        "name": "NIC",
        "type": "unconnected",
        "description": "Not internally connected; leave this pin floating."
      },
      {
        "number": "13",
        "name": "NIC",
        "type": "unconnected",
        "description": "Not internally connected; leave this pin floating."
      },
      {
        "number": "14",
        "name": "EN2",
        "type": "input",
        "description": "Refresh and watchdog enable 2; connecting to GND2 enables input/output refresh and watchdog for Side 2, while tying to VDD2 disables them for lowest power operation, and EN1 and EN2 must be set to the same logic state."
      },
      {
        "number": "15",
        "name": "VOB",
        "type": "output",
        "description": "Logic Output B."
      },
      {
        "number": "16",
        "name": "VIA",
        "type": "input",
        "description": "Logic Input A."
      },
      {
        "number": "17",
        "name": "NIC",
        "type": "unconnected",
        "description": "Not internally connected; leave this pin floating."
      },
      {
        "number": "18",
        "name": "NIC",
        "type": "unconnected",
        "description": "Not internally connected; leave this pin floating."
      },
      {
        "number": "19",
        "name": "GND2",
        "type": "power_in",
        "description": "Ground reference for isolator Side 2; pin 11 and pin 19 are internally connected, and connecting both to GND2 is recommended."
      },
      {
        "number": "20",
        "name": "VDD2",
        "type": "power_in",
        "description": "Supply voltage for isolator Side 2 (2.25 V to 3.6 V); connect a ceramic bypass capacitor of 0.01 µF to 0.1 µF between VDD2 and GND2."
      }
    ],
    "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": [],
        "pages_sent": 10,
        "cost_usd": 0.0213,
        "at": "2026-11-02T16:52:04"
      },
      "datasheet": {
        "url": "https://www.analog.com/media/en/technical-documentation/data-sheets/adum1240-adum1241-adum1245-adum1246.pdf",
        "pages": 23,
        "sha256": "45fcde7a76f1bf6b",
        "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": [
      {
        "file": "adum1241arsz.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          7.2,
          2.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c9a01a276d0b4d9561efd58f2fcee56f52c1b6ab464ea7a0380cab4e87a924e6",
        "checked": "2026-11-02",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "adum1241arsz-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          7.2,
          2.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e08382f99d59f29e246173e551273a7d18c919025ffd02043d7e7729ba221c81",
        "checked": "2026-11-02",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices",
      "Package": "SSOP-20-208mil",
      "Category": "Communication Interface Chip/UART/485/232",
      "Pins": "20"
    },
    "appearance": {
      "housing": {
        "quote": "In accordance with DIN EN IEC 60747-17 (VDE 0884-17), each ADuM1240/ADuM1241/ADuM1245/ADuM1246 is proof tested by applying an insulation test voltage ≥1050 V peak for 1 second (partial discharge detec",
        "page": 8,
        "doc": "ds.pdf",
        "material": "pC"
      },
      "version": 1,
      "datasheet_sha256": "45fcde7a76f1bf6b73ee3e7872cd827e1e340f34bef649bc2378a64e8075e093"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "45fcde7a76f1bf6b73ee3e7872cd827e1e340f34bef649bc2378a64e8075e093",
      "rows": [
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          "name": "Propagation Delay",
          "symbol": "tPHL, tPLH",
          "kind": "timing",
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          "max": 180,
          "conditions": "50% input to 50% output",
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          "name": "Change vs. Temperature (propagation delay)",
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          "unit": "ps/°C",
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          "name": "Pulse Width Distortion",
          "symbol": "PWD",
          "kind": "timing",
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          "max": 8,
          "conditions": "|tPLH − tPHL|",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Propagation Delay Skew",
          "symbol": "tPSK",
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          "source": "datasheet"
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          "name": "Channel Matching Codirectional",
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          "kind": "timing",
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          "name": "Channel Matching Opposing Direction",
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          "source": "datasheet"
        },
        {
          "name": "Supply Current ADuM1241/ADuM1246 side 1",
          "symbol": "IDD1",
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          "max": 450,
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          "source": "datasheet"
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        {
          "name": "Supply Current ADuM1241/ADuM1246 side 2",
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          "typ": 306,
          "max": 450,
          "conditions": "2 Mbps, no load",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Positive Threshold Voltage",
          "symbol": "VT+",
          "kind": "electrical",
          "unit": "V",
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        {
          "name": "Negative Going Threshold Voltage",
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          "typ": 1.2,
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          "source": "datasheet"
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        {
          "name": "Input Hysteresis",
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        {
          "name": "Undervoltage Lockout, VDD1 or VDD2",
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          "conditions": "0 V ≤ VIx ≤ VDDx1",
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          "source": "datasheet"
        },
        {
          "name": "Quiescent Input Supply Current",
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          "conditions": "ENX low",
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          "name": "Quiescent Output Supply Current",
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          "conditions": "ENX low",
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          "source": "datasheet"
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        {
          "name": "Quiescent Input Supply Current (Refresh Off)",
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          "unit": "µA",
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          "source": "datasheet"
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        {
          "name": "Quiescent Output Supply Current (Refresh Off)",
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        {
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          "typ": 60,
          "max": null,
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          "name": "Output Rise Time/Fall Time",
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          "conditions": "10% to 90%",
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          "source": "datasheet"
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        {
          "name": "Common-Mode Transient Immunity",
          "symbol": "|CM|",
          "kind": "electrical",
          "unit": "kV/µs",
          "min": 25,
          "typ": 40,
          "max": null,
          "conditions": "VIx = VDDx1, VCM = 1000 V, transient magnitude = 800 V",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "Refresh Rate",
          "symbol": "fr",
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          "conditions": "",
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          "source": "datasheet"
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        {
          "name": "Propagation Delay 2.5 V",
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          "max": 180,
          "conditions": "50% input to 50% output",
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          "source": "datasheet"
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        {
          "name": "Change vs. Temperature (propagation delay 2.5 V)",
          "symbol": "",
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          "source": "datasheet"
        },
        {
          "name": "Pulse Width Distortion 2.5 V",
          "symbol": "PWD",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 12,
          "conditions": "|tPLH − tPHL|",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Minimum Pulse Width 2.5 V",
          "symbol": "PW",
          "kind": "timing",
          "unit": "ns",
          "min": 500,
          "typ": null,
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          "conditions": "Within PWD limit",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Propagation Delay Skew 2.5 V",
          "symbol": "tPSK",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
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          "conditions": "",
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          "source": "datasheet"
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        {
          "name": "Channel Matching Codirectional 2.5 V",
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          "kind": "timing",
          "unit": "ns",
          "min": null,
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        {
          "name": "Channel Matching Opposing Direction 2.5 V",
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          "source": "datasheet"
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        {
          "name": "Supply Current ADuM1241/ADuM1246 side 1 at 2.5 V",
          "symbol": "IDD1",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 240,
          "max": 375,
          "conditions": "2 Mbps, no load",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply Current ADuM1241/ADuM1246 side 2 at 2.5 V",
          "symbol": "IDD2",
          "kind": "electrical",
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          "conditions": "2 Mbps, no load",
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          "source": "datasheet"
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        {
          "name": "Input Current per Channel 2.5 V",
          "symbol": "II",
          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": 0.01,
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