CA-IS3720HS

{
  "slug": "ca-is3720hs",
  "version": "0.1.0",
  "type": "component",
  "description": "Chipanalog Digital Isolators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface ics",
    "ca-is3720hs",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ca-is3720hs.kicad_sym",
    "ca-is3720hs.kicad_mod",
    "ca-is3720hs.glb",
    "ca-is3720hs.step",
    "ca-is3720hs.lbr",
    "docs/hero.png",
    "docs/ca-is3720hs-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ca-is3720hs-hero.glb",
    "ca-is3720hs-hero.overlay.json",
    "ca-is3720hs-etched.glb"
  ],
  "component": {
    "mpn": "CA-IS3720HS",
    "manufacturer": "Chipanalog",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Interface ICs",
    "subcategory": "Digital Isolators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/7a41728767d8cfd8a0e142f700d570d7.pdf",
    "parts": {
      "symbol": "ca-is3720hs.kicad_sym",
      "footprint": "ca-is3720hs.kicad_mod",
      "model_3d": "ca-is3720hs-hero.glb",
      "model_3d_plain": "ca-is3720hs-etched.glb",
      "model_3d_step": "ca-is3720hs-etched.step",
      "model_3d_step_plain": "ca-is3720hs.step",
      "lbr": "ca-is3720hs.lbr"
    },
    "distributor_links": {
      "lcsc": "C428882"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T10:38:51Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDDA",
        "type": "power_in",
        "description": "A-side supply voltage; recommended operating range is 2.375 V to 5.5 V, and the absolute maximum is 6.0 V referenced to GNDA."
      },
      {
        "number": "2",
        "name": "VI1",
        "type": "input",
        "description": "A-side logic input of channel 1 with Schmitt-trigger thresholds (VIH 2.0 V min, VIL 0.8 V max); input voltage must stay between -0.5 V and VDDA+0.5 V (absolute maximum, not to exceed 6 V)."
      },
      {
        "number": "3",
        "name": "VI2",
        "type": "input",
        "description": "A-side logic input of channel 2 with Schmitt-trigger thresholds (VIH 2.0 V min, VIL 0.8 V max); input voltage must stay between -0.5 V and VDDA+0.5 V (absolute maximum, not to exceed 6 V)."
      },
      {
        "number": "4",
        "name": "GNDA",
        "type": "power_in",
        "description": "A-side ground reference; all A-side signals and VDDA are referenced to this pin and it is isolated from GNDB."
      },
      {
        "number": "5",
        "name": "GNDB",
        "type": "power_in",
        "description": "B-side ground reference for VDDB and the B-side outputs, isolated from GNDA by the isolation barrier."
      },
      {
        "number": "6",
        "name": "VO2",
        "type": "output",
        "description": "B-side logic output of channel 2 following VI2; rated IOH of -4 mA at VDDO = 5 V (-2 mA at 3.3 V, -1 mA at 2.5 V) and IOL of 4 mA at 5 V, with default output state set by the H suffix (high) on input power loss."
      },
      {
        "number": "7",
        "name": "VO1",
        "type": "output",
        "description": "B-side logic output of channel 1 following VI1; rated IOH of -4 mA at VDDO = 5 V (-2 mA at 3.3 V, -1 mA at 2.5 V) and IOL of 4 mA at 5 V, with default output state set by the H suffix (high) on input power loss."
      },
      {
        "number": "8",
        "name": "VDDB",
        "type": "power_in",
        "description": "B-side supply voltage; recommended operating range is 2.375 V to 5.5 V, and the absolute maximum is 6.0 V referenced to GNDB."
      }
    ],
    "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 6-2 labels pin 7 as 'VI1/VO1/NC' and cites 'CA-IS3720/21 A侧逻辑输入' for it, which conflicts with ; Table 6-2 pin 2 and pin 3 list multiple function names for the family; the CA-IS3720 assignments (VI; The datasheet text for the 8-pin CA-IS3720 figure is partly garbled in extraction; the supply and gr"
        ],
        "pages_sent": 25,
        "cost_usd": 0.1148,
        "at": "2026-10-21T10:33:36"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/7a41728767d8cfd8a0e142f700d570d7.pdf",
        "pages": 25,
        "sha256": "e0570f476c6a89dd",
        "source_tier": "lcsc"
      },
      "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": "ca-is3720hs.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ca-is3720hs-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3637b4b72afbbe49d42462a21e33791602b31d2ac92bbbda2c31616df7dc870c",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}