main
Ray Set visibility: public 32c2d13 14d ago
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640
{
  "schema_version": 1,
  "type": "component",
  "slug": "lm2903bhqdrq1",
  "title": "LM2903BHQDRQ1",
  "brief": "Texas Instruments Comparators, 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",
    "lm2903bhqdrq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM2903BHQDRQ1",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Operational Amplifier/Comparator",
    "subcategory": "Comparators",
    "datasheet": "https://www.ti.com/lit/ds/symlink/lm2903bhqdrq1.pdf",
    "parts": {
      "symbol": "lm2903bhqdrq1.kicad_sym",
      "footprint": "lm2903bhqdrq1.kicad_mod",
      "model_3d": "lm2903bhqdrq1-hero.glb",
      "model_3d_plain": "lm2903bhqdrq1-etched.glb",
      "model_3d_step": "lm2903bhqdrq1-etched.step",
      "model_3d_step_plain": "lm2903bhqdrq1.step",
      "lbr": "lm2903bhqdrq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C7216543",
      "digikey": "296-LM2903BHQDRQ1TR-ND",
      "mouser": "595-LM2903BHQDRQ1"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T12:34:19Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-LM2903BHQDRQ1TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-LM2903BHQDRQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1OUT",
        "type": "output",
        "description": "Output pin of comparator 1 (open-collector output, can be connected to other open-collector outputs; max output voltage 38 V, sink current 25 mA for LM2903B-Q1)."
      },
      {
        "number": "2",
        "name": "1IN–",
        "type": "input",
        "description": "Negative input pin of comparator 1; input voltage range -0.3 V to 38 V for LM2903B-Q1."
      },
      {
        "number": "3",
        "name": "1IN+",
        "type": "input",
        "description": "Positive input pin of comparator 1; input voltage range -0.3 V to 38 V for LM2903B-Q1."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "5",
        "name": "2IN+",
        "type": "input",
        "description": "Positive input pin of comparator 2; input voltage range -0.3 V to 38 V for LM2903B-Q1."
      },
      {
        "number": "6",
        "name": "2IN-",
        "type": "input",
        "description": "Negative input pin of comparator 2; input voltage range -0.3 V to 38 V for LM2903B-Q1."
      },
      {
        "number": "7",
        "name": "2OUT",
        "type": "output",
        "description": "Output pin of comparator 2 (open-collector output, can be connected to other open-collector outputs; max output voltage 38 V, sink current 25 mA for LM2903B-Q1)."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply; specified 2 V to 36 V for LM2903B-Q1, absolute maximum 38 V."
      }
    ],
    "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: Pin types for outputs are classed as 'output' though the datasheet describes open-collector outputs;"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0938,
        "at": "2026-10-23T12:34:04"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/lm2903bhqdrq1.pdf",
        "pages": 44,
        "sha256": "69076f90eb22c00c",
        "source_tier": "mfr"
      },
      "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": "lm2903bhqdrq1.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": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm2903bhqdrq1-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": "c1402f54ae59151fda9eda49cc4f5f57924abe1067790237c01566e98fbf19d4",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-8",
      "Category": "Operational Amplifier/Comparator",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "69076f90eb22c00ca35e86d0636f4b8f5bcd07db2614de6c5203bc299ffe0fc4",
      "rows": [
        {
          "name": "Input offset voltage",
          "symbol": "VIO",
          "kind": "electrical",
          "unit": "mV",
          "min": -2.5,
          "typ": 0.37,
          "max": 2.5,
          "conditions": "VS = 5 to 36V, TA = 25°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input offset voltage",
          "symbol": "VIO",
          "kind": "electrical",
          "unit": "mV",
          "min": -4,
          "typ": null,
          "max": 4,
          "conditions": "VS = 5 to 36V, TA = –40°C to +125°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input bias current",
          "symbol": "IB",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": -3.5,
          "max": -25,
          "conditions": "TA = 25°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input bias current",
          "symbol": "IB",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": -50,
          "conditions": "TA = –40°C to +125°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input offset current",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "nA",
          "min": -10,
          "typ": 0.5,
          "max": 10,
          "conditions": "TA = 25°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input offset current",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "nA",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "TA = –40°C to +125°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Large signal differential voltage amplification",
          "symbol": "AVD",
          "kind": "electrical",
          "unit": "V/mV",
          "min": 50,
          "typ": 200,
          "max": null,
          "conditions": "VS = 15V, VO = 1.4V to 11.4V; RL ≥ 15k to (V+)",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Low level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 110,
          "max": 400,
          "conditions": "ISINK ≤ 4mA, VID = -1V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Low level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 550,
          "conditions": "ISINK ≤ 4mA, VID = -1V, TA = –40°C to +125°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "High-level output leakage current",
          "symbol": "IOH-LKG",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 0.1,
          "max": 20,
          "conditions": "(V+) = VO = 5 V; VID = 1V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "High-level output leakage current",
          "symbol": "IOH-LKG",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 0.3,
          "max": 50,
          "conditions": "(V+) = VO = 36V; VID = 1V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Low level output current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": 6,
          "typ": 21,
          "max": null,
          "conditions": "VOL = 1.5V; VID = -1V; VS = 5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current (all comparators)",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 400,
          "max": 600,
          "conditions": "VS = 5 V, no load",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current (all comparators)",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 550,
          "max": 800,
          "conditions": "VS = 36 V, no load, TA = –40°C to +125°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay time, high-to-low; TTL input signal",
          "symbol": "tresponse",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 300,
          "max": null,
          "conditions": "TTL input with Vref = 1.4V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay time, high-to-low; small scale input signal",
          "symbol": "tresponse",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 1000,
          "max": null,
          "conditions": "Input overdrive = 5mV, Input step = 100mV",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 38,
          "conditions": "VS = (V+) – (V–)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Differential input voltage",
          "symbol": "VID",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -38,
          "typ": null,
          "max": 38,
          "conditions": "IN+ with respect to IN-",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input pins voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 38,
          "conditions": "IN+, IN–",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Current into input pins",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -50,
          "typ": null,
          "max": null,
          "conditions": "IN+, IN–",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output pin voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 38,
          "conditions": "OUT",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output sink current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 25,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating virtual-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": "ESD HBM",
          "symbol": "V(ESD)",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -2000,
          "typ": null,
          "max": 2000,
          "conditions": "Human body model, per AEC Q100-002",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ESD CDM",
          "symbol": "V(ESD)",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -1000,
          "typ": null,
          "max": 1000,
          "conditions": "Charged device model, per AEC Q100-011, all pins",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VS",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 36,
          "conditions": "VS = (V+) – (V–)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Ambient temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "LM2903B",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input voltage range",
          "symbol": "VIVR",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.1,
          "typ": null,
          "max": null,
          "conditions": "upper limit (V+) – 2 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-ambient thermal resistance",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 148.5,
          "max": null,
          "conditions": "D (SOIC), 8 pins",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-case (top) thermal resistance",
          "symbol": "RθJC(top)",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 90.2,
          "max": null,
          "conditions": "D (SOIC), 8 pins",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-board thermal resistance",
          "symbol": "RθJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 91.8,
          "max": null,
          "conditions": "D (SOIC), 8 pins",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-top characterization parameter",
          "symbol": "ψJT",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 38.5,
          "max": null,
          "conditions": "D (SOIC), 8 pins",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-board characterization parameter",
          "symbol": "ψJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 91.1,
          "max": null,
          "conditions": "D (SOIC), 8 pins",
          "source_page": 6,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm2903bhqdrq1"
  ],
  "discovery_pitch": "LM2903BHQDRQ1 (Texas Instruments) 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",
    "lm2903bhqdrq1.kicad_sym",
    "lm2903bhqdrq1.kicad_mod",
    "lm2903bhqdrq1.glb",
    "lm2903bhqdrq1.step",
    "lm2903bhqdrq1.lbr",
    "docs/hero.png",
    "docs/lm2903bhqdrq1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm2903bhqdrq1-hero.glb",
    "lm2903bhqdrq1-hero.overlay.json",
    "lm2903bhqdrq1-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}