CA-IS3730HW

{
  "schema_version": 1,
  "type": "component",
  "slug": "ca-is3730hw",
  "title": "CA-IS3730HW",
  "brief": "Chipanalog Digital Isolators, SOIC-16-300mil. 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",
    "signal isolation devices",
    "ca-is3730hw",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CA-IS3730HW",
    "manufacturer": "Chipanalog",
    "package": "SOIC-16-300mil",
    "pin_count": 16,
    "category": "Signal Isolation Devices",
    "subcategory": "Digital Isolators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602993966610591744",
    "parts": {
      "symbol": "ca-is3730hw.kicad_sym",
      "footprint": "ca-is3730hw.kicad_mod",
      "model_3d": "ca-is3730hw-hero.glb",
      "model_3d_plain": "ca-is3730hw-etched.glb",
      "model_3d_step": "ca-is3730hw-etched.step",
      "model_3d_step_plain": "ca-is3730hw.step",
      "lbr": "ca-is3730hw.lbr"
    },
    "distributor_links": {
      "lcsc": "C7422572"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T14:27:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDDA",
        "type": "power_in",
        "description": "Side-A supply voltage, recommended range 2.375 V to 5.5 V, with a 1 µF bypass capacitor placed within 2 mm of the pin per the typical application circuit."
      },
      {
        "number": "2",
        "name": "GNDA",
        "type": "power_in",
        "description": "Side-A ground reference point for the A-side supply and logic inputs."
      },
      {
        "number": "3",
        "name": "VI1",
        "type": "input",
        "description": "Side-A logic input, channel 1; Schmitt-trigger input with VIH minimum 2.0 V and VIL maximum 0.8 V, TTL-compatible."
      },
      {
        "number": "4",
        "name": "VI2",
        "type": "input",
        "description": "Side-A logic input, channel 2; Schmitt-trigger input with VIH minimum 2.0 V and VIL maximum 0.8 V, TTL-compatible."
      },
      {
        "number": "5",
        "name": "VI3",
        "type": "input",
        "description": "Side-A logic input, channel 3 on the CA-IS3730 (this pin is the side-A logic output VO3 on the CA-IS3731); Schmitt-trigger input with VIH minimum 2.0 V and VIL maximum 0.8 V."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; may be left floating, tied to VDD, or tied to GND."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC1/ENA2 in the pin table; on the CA-IS3730 this pin has no internal connection, and the ENA enable function applies only to the CA-IS3731."
      },
      {
        "number": "8",
        "name": "GNDA",
        "type": "power_in",
        "description": "Side-A ground reference point for the A-side supply and logic."
      },
      {
        "number": "9",
        "name": "GNDB",
        "type": "power_in",
        "description": "Side-B ground reference point for the B-side supply and logic."
      },
      {
        "number": "10",
        "name": "ENB",
        "type": "input",
        "description": "Side-B output enable, active high or floating; internally pulled up to local VDD, and a low level places the B-side outputs in high impedance, so tie to a defined logic level in noisy environments."
      },
      {
        "number": "11",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; may be left floating, tied to VDD, or tied to GND."
      },
      {
        "number": "12",
        "name": "VO3",
        "type": "output",
        "description": "Side-B logic output, channel 3 on the CA-IS3730 (this pin is the side-B logic input VI3 on the CA-IS3731); outputs follow the input state when enabled and go high impedance when ENB is low."
      },
      {
        "number": "13",
        "name": "VO2",
        "type": "output",
        "description": "Side-B logic output, channel 2; typical output impedance about 50 Ω with rail-to-rail output swing."
      },
      {
        "number": "14",
        "name": "VO1",
        "type": "output",
        "description": "Side-B logic output, channel 1; typical output impedance about 50 Ω with rail-to-rail output swing."
      },
      {
        "number": "15",
        "name": "GNDB",
        "type": "power_in",
        "description": "Side-B ground reference point for the B-side supply and logic."
      },
      {
        "number": "16",
        "name": "VDDB",
        "type": "power_in",
        "description": "Side-B supply voltage, recommended range 2.375 V to 5.5 V, with a 1 µF bypass capacitor placed within 2 mm of the pin per the typical application circuit."
      }
    ],
    "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": [
          "extractor flagged: Table 6-1 lists pin 7 as NC1/ENA2 (ENA logic input) and the top-view diagram shows ENA, but the tabl; Dual-function pins (VI3/VO3). Assignments above follow the CA-IS3730 column of Table 6-1 (pin 5 = si; The top-view pin diagram text in the extracted datasheet is garbled, so pin numbers were taken from "
        ],
        "pages_sent": 25,
        "cost_usd": 0.1256,
        "at": "2026-10-18T14:25:33"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602993966610591744",
        "pages": 25,
        "sha256": "3334f70aba2bcfaf",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ca-is3730hw.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ca-is3730hw-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "272ea97a89d4aaa8f01dd6fa0fb8b0fd313e4f4438687bda09a5adfff4e0c59c",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Chipanalog",
      "Package": "SOIC-16-300mil",
      "Category": "Signal Isolation Devices",
      "Pins": "16"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "3334f70aba2bcfafa265c7cb2e871ef054e633c2fb3a97915243643d5a3deb9a",
      "rows": [
        {
          "name": "VDDA, VDDB supply voltage (absolute maximum)",
          "symbol": "VDDA, VDDB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input voltage Ax, Bx, ENx",
          "symbol": "Vin",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "Max printed as VDD+0.5 V; note 3: must not exceed 7 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VDDA, VDDB supply voltage (recommended)",
          "symbol": "VDDA, VDDB",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.375,
          "typ": 3.3,
          "max": 5.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VDD undervoltage threshold, rising (UVLO+)",
          "symbol": "VDD(UVLO+)",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.95,
          "typ": 2.24,
          "max": 2.375,
          "conditions": "VDD rising",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VDD undervoltage threshold, falling (UVLO-)",
          "symbol": "VDD(UVLO-)",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.88,
          "typ": 2.1,
          "max": 2.325,
          "conditions": "VDD falling",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "UVLO hysteresis",
          "symbol": "VHYS(UVLO)",
          "kind": "recommended_operating",
          "unit": "mV",
          "min": 70,
          "typ": 140,
          "max": 250,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High-level output current, VDDO = 5 V",
          "symbol": "IOH",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": -4,
          "typ": null,
          "max": null,
          "conditions": "VDDO = 5 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High-level output current, VDDO = 3.3 V",
          "symbol": "IOH",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": -2,
          "typ": null,
          "max": null,
          "conditions": "VDDO = 3.3 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High-level output current, VDDO = 2.5 V",
          "symbol": "IOH",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": -1,
          "typ": null,
          "max": null,
          "conditions": "VDDO = 2.5 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Low-level output current, VDDO = 5 V",
          "symbol": "IOL",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "VDDO = 5 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Low-level output current, VDDO = 3.3 V",
          "symbol": "IOL",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "VDDO = 3.3 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Low-level output current, VDDO = 2.5 V",
          "symbol": "IOL",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VDDO = 2.5 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input threshold logic high",
          "symbol": "VIH",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input threshold logic low",
          "symbol": "VIL",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Signaling data rate (recommended)",
          "symbol": "DR",
          "kind": "recommended_operating",
          "unit": "Mbps",
          "min": 0,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Ambient temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": 27,
          "max": 125,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum power dissipation (CA-IS3730)",
          "symbol": "PD",
          "kind": "thermal",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 252,
          "conditions": "VDDA = VDDB = 5.5 V, CL = 15 pF, TJ = 150°C, input 75MHz 50% duty square wave",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum power dissipation, side A (CA-IS3730)",
          "symbol": "PDA",
          "kind": "thermal",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 27,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum power dissipation, side B (CA-IS3730)",
          "symbol": "PDB",
          "kind": "thermal",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 225,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output voltage logic low",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.2,
          "max": 0.4,
          "conditions": "IOL = 4mA; 图 8-2",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input threshold logic high",
          "symbol": "VIT+(IN)",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input threshold logic low",
          "symbol": "VIT-(IN)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input high-level leakage current",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "VIH = VDDA at Ax or Bx or ENx",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input low-level leakage current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "µA",
          "min": -20,
          "typ": null,
          "max": null,
          "conditions": "VIL = 0 V at Ax or Bx",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Common-mode transient immunity",
          "symbol": "CMTI",
          "kind": "electrical",
          "unit": "kV/µs",
          "min": 100,
          "typ": 150,
          "max": null,
          "conditions": "VI = VDDI1 or 0 V, VCM = 1200 V; 图 8-4",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Output impedance tolerance",
          "symbol": "ZO",
          "kind": "tolerance",
          "unit": "%",
          "min": -40,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Data rate",
          "symbol": "DR",
          "kind": "timing",
          "unit": "Mbps",
          "min": 0,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Minimum pulse width",
          "symbol": "PWmin",
          "kind": "timing",
          "unit": "ns",
          "min": 5,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay",
          "symbol": "tPLH, tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": 5,
          "typ": 12,
          "max": 15,
          "conditions": "图 8-1",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Pulse width distortion",
          "symbol": "PWD",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 0.2,
          "max": 4.5,
          "conditions": "|tPLH - tPHL|",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Channel-to-channel output skew, same direction",
          "symbol": "tsk(o)",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 0.4,
          "max": 2.5,
          "conditions": "Same-direction channels",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Part-to-part channel output skew",
          "symbol": "tsk(pp)",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 2,
          "max": 4,
          "conditions": "",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Output rise time",
          "symbol": "tr",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 2.5,
          "max": 4,
          "conditions": "图 8-1",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Output fall time",
          "symbol": "tf",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 2.5,
          "max": 4,
          "conditions": "图 8-1",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Disable propagation delay, output high to high-Z",
          "symbol": "tPHZ",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 8,
          "max": 13,
          "conditions": "图 8-2",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Disable propagation delay, output low to high-Z",
          "symbol": "tPLZ",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 8,
          "max": 17,
          "conditions": "图 8-2",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Enable propagation delay, output high-Z to high (CA-IS373xH)",
          "symbol": "tPZH",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 15,
          "max": 30,
          "conditions": "CA-IS373xH; 图 8-2",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Enable propagation delay, output high-Z to low (CA-IS373xH)",
          "symbol": "tPZL",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 15,
          "max": 30,
          "conditions": "CA-IS373xH; 图 8-2",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Default output delay from input supply UVLO",
          "symbol": "tDO",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 0.1,
          "max": 0.3,
          "conditions": "图 8-3",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Startup time",
          "symbol": "tSU",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 15,
          "max": 40,
          "conditions": "",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Supply current IDDA, enable off (CA-IS3730H, VIN = VDDA)",
          "symbol": "IDDA",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.2,
          "max": 2.6,
          "conditions": "ENB = 0 V; VIN = VDDA (CA-IS3730H)",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Supply current IDDB, enable off (CA-IS3730H, VIN = VDDA)",
          "symbol": "IDDB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2.1,
          "max": 3.8,
          "conditions": "ENB = 0 V; VIN = VDDA (CA-IS3730H)",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Supply current IDDA, enable off (CA-IS3730H, VIN = 0 V)",
          "symbol": "IDDA",
          "kind": "electrical",
          "unit": "mA",
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