main
Ray Set visibility: public 81a71fc 14d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "cos129u",
  "title": "COS129U",
  "brief": "COSINE Instrumentation OpAmps, SOP-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",
    "cos129u",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "COS129U",
    "manufacturer": "COSINE",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Operational Amplifier/Comparator",
    "subcategory": "Instrumentation OpAmps",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/e8fb533d3f8893598a3383762d077604.pdf",
    "parts": {
      "symbol": "cos129u.kicad_sym",
      "footprint": "cos129u.kicad_mod",
      "model_3d": "cos129u-hero.glb",
      "model_3d_plain": "cos129u-etched.glb",
      "model_3d_step": "cos129u-etched.step",
      "model_3d_step_plain": "cos129u.step",
      "lbr": "cos129u.lbr"
    },
    "distributor_links": {
      "lcsc": "C5358243"
    },
    "distributor_check": {
      "checked_at": "2026-10-24T00:08:30Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RG",
        "type": "passive",
        "description": "Gain setting pin; for gains greater than 1, place a gain resistor between pin 1 and pin 8 (G = 1 + 49.4 kΩ/RG for COS129)."
      },
      {
        "number": "2",
        "name": "VIN-",
        "type": "power_in",
        "description": "Negative input."
      },
      {
        "number": "3",
        "name": "VIN+",
        "type": "power_in",
        "description": "Positive input."
      },
      {
        "number": "4",
        "name": "-VS",
        "type": "power_in",
        "description": "Negative supply; dual supply ±2.25V to ±18V."
      },
      {
        "number": "5",
        "name": "REF",
        "type": "input",
        "description": "Reference input; must be driven by low impedance or connected to ground."
      },
      {
        "number": "6",
        "name": "VOUT",
        "type": "output",
        "description": "Output."
      },
      {
        "number": "7",
        "name": "+VS",
        "type": "power_in",
        "description": "Positive supply; dual supply ±2.25V to ±18V."
      },
      {
        "number": "8",
        "name": "RG",
        "type": "passive",
        "description": "Gain setting pin; for gains greater than 1, place a gain resistor between pin 1 and pin 8."
      }
    ],
    "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",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pin configuration drawing is not in the extracted text. Pin numbers and names come from the pin "
        ],
        "pages_sent": 8,
        "cost_usd": 0.0523,
        "at": "2026-10-24T00:08:15"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/e8fb533d3f8893598a3383762d077604.pdf",
        "pages": 8,
        "sha256": "e35a1a4eec057f26",
        "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": "cos129u.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": "2026-10-24",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cos129u-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": "80f1ea2152add6f140f7e259bc46586c464e97eb2e82937af7b9984710538dd2",
        "checked": "2026-10-24",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "COSINE",
      "Package": "SOP-8",
      "Category": "Operational Amplifier/Comparator",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "e35a1a4eec057f26dd4b93959f27911bc76ae152972c6955912a200c60ad36bf",
      "rows": [
        {
          "name": "Input Offset Voltage (COS129U)",
          "symbol": "VOS",
          "kind": "electrical",
          "unit": "μV",
          "min": -50,
          "typ": 10,
          "max": 50,
          "conditions": "COS128U/129U; printed ±10 typ, ±50 max",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Offset Voltage Drift",
          "symbol": "ΔVOS/ΔT",
          "kind": "electrical",
          "unit": "μV/°C",
          "min": null,
          "typ": 0.2,
          "max": 1,
          "conditions": "-40 to 125°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Bias Current",
          "symbol": "IB",
          "kind": "electrical",
          "unit": "nA",
          "min": -10,
          "typ": 2,
          "max": 10,
          "conditions": "printed ±2 typ, ±10 max",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Offset Current",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "nA",
          "min": -10,
          "typ": 1,
          "max": 10,
          "conditions": "printed ±1 typ, ±10 max",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Gain Range",
          "symbol": "GR",
          "kind": "electrical",
          "unit": "V/V",
          "min": 1,
          "typ": null,
          "max": 10000,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Gain Error",
          "symbol": "GE",
          "kind": "electrical",
          "unit": "%",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "printed ±2",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Current",
          "symbol": "IOUT",
          "kind": "electrical",
          "unit": "mA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "VDROPOUT < 1.2 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Voltage Range",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2.25,
          "typ": null,
          "max": 18,
          "conditions": "printed ±2.25 to ±18",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current / Amplifier",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1,
          "max": 1.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Voltage +Vs to -Vs",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Differential Input Voltage Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -36,
          "typ": null,
          "max": 36,
          "conditions": "printed ±36",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output Current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range (absolute max table)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "ESD Susceptibility, HBM",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2000,
          "conditions": "HBM",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC Supply Voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.5,
          "typ": null,
          "max": 18,
          "conditions": "printed ±2.5V ~ ±18V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance Junction-to-ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 155,
          "max": null,
          "conditions": "SOP8",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Common-Mode Rejection Ratio",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 125,
          "max": null,
          "conditions": "G=100",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Short-Circuit Current",
          "symbol": "ISC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 24,
          "max": null,
          "conditions": "printed ±24",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Rejection Ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 120,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Gain Bandwidth Product",
          "symbol": "GBWP",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "CL=100pF, RL=10kΩ",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Slew Rate",
          "symbol": "SR",
          "kind": "electrical",
          "unit": "V/μs",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "CL=100pF, RL=10kΩ, Av=1",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Voltage Noise Density",
          "symbol": "en",
          "kind": "electrical",
          "unit": "nV/√Hz",
          "min": null,
          "typ": 8,
          "max": null,
          "conditions": "f=1kHz",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cos129u"
  ],
  "discovery_pitch": "COS129U (COSINE) 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",
    "cos129u.kicad_sym",
    "cos129u.kicad_mod",
    "cos129u.glb",
    "cos129u.step",
    "cos129u.lbr",
    "docs/hero.png",
    "docs/cos129u-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cos129u-hero.glb",
    "cos129u-hero.overlay.json",
    "cos129u-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}