LF444CMX

{
  "schema_version": 1,
  "type": "component",
  "slug": "lf444cmx",
  "title": "LF444CMX",
  "brief": "Texas Instruments FET InputAmplifiers, SOIC-14. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "op-amp-cmp",
    "lf444cmx"
  ],
  "component": {
    "mpn": "LF444CMX",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Op-amp/Cmp",
    "subcategory": "FET InputAmplifiers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/lf444cmx.pdf",
    "parts": {
      "symbol": "lf444cmx.kicad_sym",
      "footprint": "lf444cmx.kicad_mod",
      "model_3d": "lf444cmx-etched.glb",
      "model_3d_plain": "lf444cmx.glb",
      "model_3d_step": "lf444cmx-etched.step",
      "model_3d_step_plain": "lf444cmx.step",
      "lbr": "lf444cmx.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "OUT1",
        "type": "output",
        "description": "Amplifier 1 output."
      },
      {
        "number": "2",
        "name": "IN1-",
        "type": "input",
        "description": "Amplifier 1 inverting input (JFET gate, ~10^12 Ω, 50 pA max bias)."
      },
      {
        "number": "3",
        "name": "IN1+",
        "type": "input",
        "description": "Amplifier 1 non-inverting input (JFET gate, ~10^12 Ω, 50 pA max bias)."
      },
      {
        "number": "4",
        "name": "V+",
        "type": "power_in",
        "description": "Positive supply rail (VCC). Absolute max ±18 V (LF444) / ±22 V (LF444A). Typical operation ±15 V. Supply current ~0.6 mA (all four amps)."
      },
      {
        "number": "5",
        "name": "IN2+",
        "type": "input",
        "description": "Amplifier 2 non-inverting input."
      },
      {
        "number": "6",
        "name": "IN2-",
        "type": "input",
        "description": "Amplifier 2 inverting input."
      },
      {
        "number": "7",
        "name": "OUT2",
        "type": "output",
        "description": "Amplifier 2 output."
      },
      {
        "number": "8",
        "name": "OUT3",
        "type": "output",
        "description": "Amplifier 3 output."
      },
      {
        "number": "9",
        "name": "IN3+",
        "type": "input",
        "description": "Amplifier 3 non-inverting input."
      },
      {
        "number": "10",
        "name": "IN3-",
        "type": "input",
        "description": "Amplifier 3 inverting input."
      },
      {
        "number": "11",
        "name": "V-",
        "type": "power_in",
        "description": "Negative supply rail (VEE). Absolute max ±18 V (LF444) / ±22 V (LF444A). Tie to GND for single-supply operation."
      },
      {
        "number": "12",
        "name": "IN4+",
        "type": "input",
        "description": "Amplifier 4 non-inverting input."
      },
      {
        "number": "13",
        "name": "IN4-",
        "type": "input",
        "description": "Amplifier 4 inverting input."
      },
      {
        "number": "14",
        "name": "OUT4",
        "type": "output",
        "description": "Amplifier 4 output."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/lf444cmx.pdf",
        "pages": 18,
        "sha256": "8be6c106cdaeeaf9",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.7,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lf444cmx-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "80f9075dfdb03b9cf96d94322f2b136b92f5083b7688a3a94d41fd266bea917c",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-14",
      "Category": "Op-amp/Cmp",
      "Pins": "14"
    }
  },
  "variants": [
    {
      "mpn": "LF444CMX",
      "kind": "packaging"
    },
    {
      "mpn": "LF444CMXCN",
      "kind": "packaging"
    },
    {
      "mpn": "LF444CMXMJ",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lf444cmx"
  ],
  "discovery_pitch": "LF444CMX (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "lf444cmx.kicad_sym",
    "lf444cmx.kicad_mod",
    "lf444cmx.glb",
    "lf444cmx.step",
    "lf444cmx.lbr",
    "docs/hero.png",
    "docs/lf444cmx-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T23:56:26.955Z"
}