main
Ray Set visibility: public 1004d0d 10d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "ba2901sf-e2",
  "title": "BA2901SF-E2",
  "brief": "ROHM Semicon Comparators, SOP-14. 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",
    "amplifiers-comparators",
    "ba2901sf-e2",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "BA2901SF-E2",
    "manufacturer": "ROHM Semicon",
    "package": "SOP-14",
    "pin_count": 14,
    "category": "Amplifiers/Comparators",
    "subcategory": "Comparators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590225503324823552",
    "parts": {
      "symbol": "ba2901sf-e2.kicad_sym",
      "footprint": "ba2901sf-e2.kicad_mod",
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      "model_3d_step": "ba2901sf-e2-etched.step",
      "model_3d_step_plain": "ba2901sf-e2.step",
      "lbr": "ba2901sf-e2.lbr"
    },
    "distributor_links": {
      "lcsc": "C2983919"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T08:50:05Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OUT2",
        "type": "output",
        "description": "Open-collector output of comparator channel 2, with ground-sense operation as stated for the device's inputs and outputs."
      },
      {
        "number": "2",
        "name": "OUT1",
        "type": "output",
        "description": "Open-collector output of comparator channel 1, with ground-sense operation as stated for the device's inputs and outputs."
      },
      {
        "number": "3",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply pin; the device operates from +2.0V to +36.0V single supply or ±1.0V to ±18.0V split supply, with 36V absolute maximum VCC-VEE."
      },
      {
        "number": "4",
        "name": "-IN1",
        "type": "input",
        "description": "Inverting input of comparator channel 1; the input common-mode range is (VEE-0.3)V to (VEE+36)V, and input current is limited to 10mA absolute maximum."
      },
      {
        "number": "5",
        "name": "+IN1",
        "type": "input",
        "description": "Non-inverting input of comparator channel 1; the input common-mode range is (VEE-0.3)V to (VEE+36)V, and input current is limited to 10mA absolute maximum."
      },
      {
        "number": "6",
        "name": "-IN2",
        "type": "input",
        "description": "Inverting input of comparator channel 2; the input common-mode range is (VEE-0.3)V to (VEE+36)V, and input current is limited to 10mA absolute maximum."
      },
      {
        "number": "7",
        "name": "+IN2",
        "type": "input",
        "description": "Non-inverting input of comparator channel 2; the input common-mode range is (VEE-0.3)V to (VEE+36)V, and input current is limited to 10mA absolute maximum."
      },
      {
        "number": "8",
        "name": "-IN3",
        "type": "input",
        "description": "Inverting input of comparator channel 3; the input common-mode range is (VEE-0.3)V to (VEE+36)V, and input current is limited to 10mA absolute maximum."
      },
      {
        "number": "9",
        "name": "+IN3",
        "type": "input",
        "description": "Non-inverting input of comparator channel 3; the input common-mode range is (VEE-0.3)V to (VEE+36)V, and input current is limited to 10mA absolute maximum."
      },
      {
        "number": "10",
        "name": "-IN4",
        "type": "input",
        "description": "Inverting input of comparator channel 4; the input common-mode range is (VEE-0.3)V to (VEE+36)V, and input current is limited to 10mA absolute maximum."
      },
      {
        "number": "11",
        "name": "+IN4",
        "type": "input",
        "description": "Non-inverting input of comparator channel 4; the input common-mode range is (VEE-0.3)V to (VEE+36)V, and input current is limited to 10mA absolute maximum."
      },
      {
        "number": "12",
        "name": "VEE",
        "type": "power_in",
        "description": "Negative supply pin (ground in single-supply use); the input common-mode range is referenced to VEE, so inputs must stay above VEE-0.3V."
      },
      {
        "number": "13",
        "name": "OUT4",
        "type": "output",
        "description": "Open-collector output of comparator channel 4, with ground-sense operation as stated for the device's inputs and outputs."
      },
      {
        "number": "14",
        "name": "OUT3",
        "type": "output",
        "description": "Open-collector output of comparator channel 3, with ground-sense operation as stated for the device's inputs and outputs."
      }
    ],
    "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's Pin Configuration table lists pin 1 as OUT2 and pin 2 as OUT1 (reverse of the expect; Page 3 pin table is the quad pinout shared by the SOP14 package of BA10339F, BA2901SF and BA2901F; i; The datasheet pages provided do not show a per-pin electrical table; pin descriptions are built from"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0142,
        "at": "2026-10-18T08:48:29"
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      "datasheet": {
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        "pages": 59,
        "sha256": "d03140fa0ae29b4f",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  "metadata": {
    "specs": {
      "Manufacturer": "ROHM Semicon",
      "Package": "SOP-14",
      "Category": "Amplifiers/Comparators",
      "Pins": "14"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "d03140fa0ae29b4fe231fdc5a6872b653e1c58e0043ccf05abc8c8e584a5463c",
      "rows": [
        {
          "name": "Input Offset Voltage (25°C)",
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          "unit": "mV",
          "min": null,
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          "max": 7,
          "conditions": "OUT=1.4V",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Input Offset Voltage (Full range)",
          "symbol": "VIO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 15,
          "conditions": "VCC=5 to 36V, OUT=1.4V",
          "source_page": 10,
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        },
        {
          "name": "Input Offset Current (25°C)",
          "symbol": "IIO",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 5,
          "max": 50,
          "conditions": "OUT=1.4V",
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        {
          "name": "Input Offset Current (Full range)",
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          "min": null,
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        },
        {
          "name": "Input Bias Current (25°C)",
          "symbol": "IB",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 50,
          "max": 250,
          "conditions": "OUT=1.4V",
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        {
          "name": "Input Bias Current (Full range)",
          "symbol": "IB",
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          "min": null,
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          "conditions": "OUT=1.4V",
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          "source": "datasheet"
        },
        {
          "name": "Input Common-mode Voltage Range (25°C)",
          "symbol": "VICM",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Large Signal Voltage Gain (25°C)",
          "symbol": "AV",
          "kind": "electrical",
          "unit": "V/mV",
          "min": 25,
          "typ": 100,
          "max": null,
          "conditions": "VCC=15V, OUT=1.4 to 11.4V",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Large Signal Voltage Gain (25°C, dB)",
          "symbol": "AV",
          "kind": "electrical",
          "unit": "dB",
          "min": 88,
          "typ": 100,
          "max": null,
          "conditions": "RL=15kΩ, VRL=15V",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Supply Current (25°C)",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.8,
          "max": 2,
          "conditions": "OUT=Open",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Supply Current (Full range)",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 2.5,
          "conditions": "OUT=Open, VCC=36V",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Output Sink Current (25°C)",
          "symbol": "ISINK",
          "kind": "electrical",
          "unit": "mA",
          "min": 6,
          "typ": 16,
          "max": null,
          "conditions": "+IN=0V, VIN=1V; OUT=1.5V",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Output Saturation Voltage (25°C)",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 150,
          "max": 400,
          "conditions": "+IN=0V, -IN=1V",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Output Saturation Voltage (Full range)",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 700,
          "conditions": "ISINK=4mA",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Output Leakage Current (Full range)",
          "symbol": "ILEAK",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "+IN=1V, -IN=0V OUT=36V",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage (VCC-VEE)",
          "symbol": "VCC-VEE",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation (SOP14)",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.61,
          "conditions": "To use above TA=25°C reduce 4.9mW (Note 14,16)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Differential Input Voltage",
          "symbol": "VID",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 36,
          "conditions": "Note 17",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "Input Current",
          "symbol": "II",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -10,
          "typ": null,
          "max": null,
          "conditions": "Note 18",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
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        },
        {
          "name": "Maximum Junction Temperature",
          "symbol": "Tjmax",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating Supply Voltage (single supply)",
          "symbol": "Vopr",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating Supply Voltage (split supply)",
          "symbol": "Vopr",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1,
          "typ": null,
          "max": 18,
          "conditions": "±1.0 to ±18.0 V split supply",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "Topr",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "BA2901S",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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