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Ray Set visibility: public 679071b 9d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "rs8491xk",
  "title": "RS8491XK",
  "brief": "Jiangsu RUNIC Tech Operational Amplifier, SOIC-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",
    "operational amplifier-comparator",
    "rs8491xk",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "RS8491XK",
    "manufacturer": "Jiangsu RUNIC Tech",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Operational Amplifier/Comparator",
    "subcategory": "Operational Amplifier",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/4e7ecf19286f9038d3a445ca33b33581.pdf",
    "parts": {
      "symbol": "rs8491xk.kicad_sym",
      "footprint": "rs8491xk.kicad_mod",
      "model_3d": "rs8491xk-hero.glb",
      "model_3d_plain": "rs8491xk-etched.glb",
      "model_3d_step": "rs8491xk-etched.step",
      "model_3d_step_plain": "rs8491xk.step",
      "lbr": "rs8491xk.lbr"
    },
    "distributor_links": {
      "lcsc": "C20611915"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T16:37:11Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "+IN",
        "type": "input",
        "description": "Noninverting input of the amplifier, which also drives the internal guard buffer input."
      },
      {
        "number": "2",
        "name": "GRD",
        "type": "passive",
        "description": "Guard pin that is part of the integrated guard buffer and is used to route the guard ring around the sensitive inputs."
      },
      {
        "number": "3",
        "name": "IC",
        "type": "passive",
        "description": "Internal connection that must be connected to V- or left unconnected."
      },
      {
        "number": "4",
        "name": "V-",
        "type": "power_in",
        "description": "Negative supply voltage."
      },
      {
        "number": "5",
        "name": "V+",
        "type": "power_in",
        "description": "Positive supply voltage."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "output",
        "description": "Amplifier output, which has a rail-to-rail output stage."
      },
      {
        "number": "7",
        "name": "GRD",
        "type": "passive",
        "description": "Guard pin that is part of the integrated guard buffer and is used to route the guard ring around the sensitive inputs."
      },
      {
        "number": "8",
        "name": "-IN",
        "type": "input",
        "description": "Inverting input of the amplifier."
      }
    ],
    "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: The datasheet gives the I/O type of both GRD pins as '-', so they are classified here as passive. Th"
        ],
        "pages_sent": 19,
        "cost_usd": 0.0173,
        "at": "2026-10-28T16:37:01"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/4e7ecf19286f9038d3a445ca33b33581.pdf",
        "pages": 19,
        "sha256": "25ff542b30d2bfbe",
        "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": "rs8491xk.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "rs8491xk-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "849daf92b14c48a6a009c50919eb9abb844aebdf2a123352a335d9514e63dd05",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Jiangsu RUNIC Tech",
      "Package": "SOIC-8",
      "Category": "Operational Amplifier/Comparator",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "25ff542b30d2bfbe865c2aa65244c49ac4b799afa4f8519f7649443f856eccfa",
      "rows": [
        {
          "name": "Input Bias Current",
          "symbol": "IB",
          "kind": "electrical",
          "unit": "fA",
          "min": -200,
          "typ": 50,
          "max": 200,
          "conditions": "25°C, VS=5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input Offset Current",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "fA",
          "min": -200,
          "typ": 50,
          "max": 200,
          "conditions": "25°C, VS=5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input Offset Voltage",
          "symbol": "VOS",
          "kind": "electrical",
          "unit": "μV",
          "min": -400,
          "typ": 54,
          "max": 400,
          "conditions": "VCM=VS/2, 25°C, VS=5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input Offset Voltage",
          "symbol": "VOS",
          "kind": "electrical",
          "unit": "μV",
          "min": -1000,
          "typ": null,
          "max": 1000,
          "conditions": "VCM=1.5V to 3V, -40°C to 85°C, VS=5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input Offset Voltage",
          "symbol": "VOS",
          "kind": "electrical",
          "unit": "μV",
          "min": -600,
          "typ": null,
          "max": 600,
          "conditions": "VCM=0V to 3V, 25°C, VS=5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input Offset Voltage Average Drift",
          "symbol": "VOS TC",
          "kind": "temperature_coefficient",
          "unit": "μV/°C",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "VCM=1.5V to 3V, -40°C to 85°C, VS=5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Power-Supply Rejection Ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 83,
          "typ": 106,
          "max": null,
          "conditions": "VS=5V to 25V, 25°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Power-Supply Rejection Ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 70,
          "typ": null,
          "max": null,
          "conditions": "VS=5V to 25V, -40°C to 125°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Common-Mode Voltage Range",
          "symbol": "VCM",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 3,
          "conditions": "VS=5V, -40°C to 125°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Common-Mode Rejection Ratio",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 83,
          "typ": 102,
          "max": null,
          "conditions": "VCM=1.5V to 3.0V, 25°C, VS=5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Common-Mode Rejection Ratio",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 70,
          "typ": null,
          "max": null,
          "conditions": "VCM=1.5V to 3.0V, -40°C to 125°C, VS=5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Open-Loop Voltage Gain",
          "symbol": "AOL",
          "kind": "electrical",
          "unit": "dB",
          "min": 110,
          "typ": 130,
          "max": null,
          "conditions": "RL=10kΩ to VCM, VOUT=0.2V to 4.3V, 25°C, VS=5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Open-Loop Voltage Gain",
          "symbol": "AOL",
          "kind": "electrical",
          "unit": "dB",
          "min": 105,
          "typ": null,
          "max": null,
          "conditions": "RL=10kΩ to VCM, VOUT=0.2V to 4.3V, -40°C to 125°C, VS=5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input Resistance",
          "symbol": "RIN",
          "kind": "electrical",
          "unit": "TΩ",
          "min": 20,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage High",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.92,
          "typ": null,
          "max": null,
          "conditions": "RL=2kΩ, 25°C, VS=5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage High",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.85,
          "typ": null,
          "max": null,
          "conditions": "RL=2kΩ, -40°C to 125°C, VS=5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage High",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.98,
          "typ": null,
          "max": null,
          "conditions": "RL=10kΩ, 25°C, VS=5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage High",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.95,
          "typ": null,
          "max": null,
          "conditions": "RL=10kΩ, -40°C to 125°C, VS=5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Low",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 133,
          "conditions": "RL=2kΩ, 25°C, VS=5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Low",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 160,
          "conditions": "RL=2kΩ, -40°C to 125°C, VS=5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Low",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 29,
          "conditions": "RL=10kΩ, 25°C, VS=5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Low",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "RL=10kΩ, -40°C to 125°C, VS=5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output Source Current",
          "symbol": "ISOURCE",
          "kind": "electrical",
          "unit": "mA",
          "min": 30,
          "typ": null,
          "max": null,
          "conditions": "25°C, VS=5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output Sink Current",
          "symbol": "ISINK",
          "kind": "electrical",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": null,
          "conditions": "25°C, VS=5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current Per Amplifier",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1,
          "max": 1.6,
          "conditions": "IOUT=0A, 25°C, VS=5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current Per Amplifier",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1.8,
          "conditions": "IOUT=0A, -40°C to 125°C, VS=5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Guard Offset Voltage",
          "symbol": "VGOS",
          "kind": "electrical",
          "unit": "μV",
          "min": -400,
          "typ": 75,
          "max": 400,
          "conditions": "VCM=1.5V to 3V, 25°C, VS=5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Guard Offset Voltage",
          "symbol": "VGOS",
          "kind": "electrical",
          "unit": "μV",
          "min": -800,
          "typ": null,
          "max": 800,
          "conditions": "VCM=1.5V to 3V, -40°C to 125°C, VS=5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Guard Offset Voltage",
          "symbol": "VGOS",
          "kind": "electrical",
          "unit": "μV",
          "min": -500,
          "typ": null,
          "max": 500,
          "conditions": "VCM=0.1V to 3V, 25°C, VS=5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Range",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.1,
          "typ": null,
          "max": 3,
          "conditions": "VGOS<±500μV, 25°C, VS=5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VS",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 5,
          "typ": null,
          "max": 25,
          "conditions": "Single-supply",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VS",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.5,
          "typ": null,
          "max": 12.5,
          "conditions": "Dual-supply, printed as ±2.5 to ±12.5",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.7,
          "typ": null,
          "max": 28,
          "conditions": "VS=(V+)-(V-)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Signal input pin current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "Signal input pin",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Signal output pin current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "Signal output pin",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "Free-air",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Package thermal impedance",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 110,
          "conditions": "SOIC-8(SOP8)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input Offset Voltage",
          "symbol": "VOS",
          "kind": "electrical",
          "unit": "μV",
          "min": -900,
          "typ": 100,
          "max": 900,
          "conditions": "VCM=VS/2, 25°C, VS=25V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input Offset Voltage",
          "symbol": "VOS",
          "kind": "electrical",
          "unit": "μV",
          "min": -2000,
          "typ": null,
          "max": 2000,
          "conditions": "VCM=1.5V to 21V, -40°C to 85°C, VS=25V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input Offset Voltage Average Drift",
          "symbol": "VOS TC",
          "kind": "temperature_coefficient",
          "unit": "μV/°C",
          "min": -3.5,
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