GS8740-TR

{
  "schema_version": 1,
  "type": "component",
  "slug": "gs8740-tr",
  "title": "GS8740-TR",
  "brief": "Gainsil Comparators, SOT-23-5. 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",
    "gs8740-tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "GS8740-TR",
    "manufacturer": "Gainsil",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Operational Amplifier/Comparator",
    "subcategory": "Comparators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/668640228ec4d71b6489d93e076138dc.pdf",
    "parts": {
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      "footprint": "gs8740-tr.kicad_mod",
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      "model_3d_plain": "gs8740-tr-etched.glb",
      "model_3d_step": "gs8740-tr-etched.step",
      "model_3d_step_plain": "gs8740-tr.step",
      "lbr": "gs8740-tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C5179667"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T19:59:35Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "output",
        "description": "Comparator output, rail-to-rail and CMOS/TTL-compatible."
      },
      {
        "number": "2",
        "name": "VSS",
        "type": "power_in",
        "description": "Negative supply (ground in single-supply operation); supply range VDD to VSS is 2.7V to 5.5V, absolute maximum 7.5V."
      },
      {
        "number": "3",
        "name": "IN+",
        "type": "input",
        "description": "Non-inverting comparator input, rail-to-rail with common-mode range VSS-0.1V to VDD+0.1V."
      },
      {
        "number": "4",
        "name": "IN-",
        "type": "input",
        "description": "Inverting comparator input, rail-to-rail with common-mode range VSS-0.1V to VDD+0.1V."
      },
      {
        "number": "5",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply, 2.7V to 5.5V, with a 0.1uF ceramic bypass capacitor placed close to the pin."
      }
    ],
    "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+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The GS8740-TR is the SOT23-5 single comparator, so I used the GS8740 pinout from the Figure 1 diagra",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 14,
        "cost_usd": 0.2361,
        "at": "2026-10-22T19:58:29"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/668640228ec4d71b6489d93e076138dc.pdf",
        "pages": 14,
        "sha256": "2991e5366948a26a",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "gs8740-tr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "gs8740-tr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c45c6530149c519f6201130cb8328aa3595ffdf3bf59d8c7699dec9256899e64",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Gainsil",
      "Package": "SOT-23-5",
      "Category": "Operational Amplifier/Comparator",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "2991e5366948a26a77a8f750995061901e8fc9dfaf4cfaf9527175ddfc83429f",
      "rows": [
        {
          "name": "Input Offset Voltage",
          "symbol": "VOS",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 0.4,
          "max": 5,
          "conditions": "VCM = 0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Common-Mode Rejection Ratio",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 60,
          "typ": 78,
          "max": null,
          "conditions": "VS = 5V, VCM = 0V to 5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Rejection Ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 59,
          "typ": 77,
          "max": null,
          "conditions": "VS = +2.7V to +5.5V, VCM = 0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Voltage Range (min)",
          "symbol": "VS",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Short-Circuit Current (source)",
          "symbol": "ISOURCE",
          "kind": "electrical",
          "unit": "mA",
          "min": 21,
          "typ": 35,
          "max": null,
          "conditions": "VS = 5V, Out to VS/2",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Short-Circuit Current (sink)",
          "symbol": "ISINK",
          "kind": "electrical",
          "unit": "mA",
          "min": 20,
          "typ": 36,
          "max": null,
          "conditions": "VS = 5V, Out to VS/2",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Voltage",
          "symbol": "VDD to Vss",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7.5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Analog Input Voltage",
          "symbol": "IN+ or IN-",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "Vss-0.5V to VDD+0.5V (offsets relative to rails)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 160,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "soldering, 10sec",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance SOT23-5",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 190,
          "max": null,
          "conditions": "TA=+25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "ESD HBM",
          "symbol": "HBM",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "ESD MM",
          "symbol": "MM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input Bias Current",
          "symbol": "IB",
          "kind": "electrical",
          "unit": "pA",
          "min": null,
          "typ": 6,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input Offset Current",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "pA",
          "min": null,
          "typ": 4,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input Hysteresis",
          "symbol": "Vhys",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 2.7,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current / Comparator",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 155,
          "max": null,
          "conditions": "VS = +3V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Propagation Delay (Low to High)",
          "symbol": "TdLH",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 21,
          "max": null,
          "conditions": "VS = 3V, Overdrive = 100mV",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Propagation Delay (High to Low)",
          "symbol": "TdHL",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "VS = 3V, Overdrive = 100mV",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "gs8740-tr"
  ],
  "discovery_pitch": "GS8740-TR (Gainsil) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "viewers/footprint.html",
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  "visibility": {
    "public": true
  }
}