LM239ADT

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm239adt",
  "title": "LM239ADT",
  "brief": "STMicroelectronics Comparators, SOIC-14. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "op-amp-cmp",
    "lm239adt"
  ],
  "component": {
    "mpn": "LM239ADT",
    "manufacturer": "STMicroelectronics",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Op-amp/Cmp",
    "subcategory": "Comparators",
    "datasheet": "https://www.st.com/resource/en/datasheet/lm239adt.pdf",
    "parts": {
      "symbol": "lm239adt.kicad_sym",
      "footprint": "lm239adt.kicad_mod",
      "model_3d": "lm239adt-etched.glb",
      "model_3d_plain": "lm239adt.glb",
      "model_3d_step": "lm239adt-etched.step",
      "model_3d_step_plain": "lm239adt.step",
      "lbr": "lm239adt.lbr"
    },
    "distributor_links": {
      "lcsc": "C192734"
    },
    "pins": [
      {
        "number": "1",
        "name": "Output2",
        "type": "output",
        "description": "Open-collector output of comparator 2. Requires an external pull-up resistor to a positive rail (typ. ≤ Vcc+). Low output saturation voltage 250 mV typ at Isink = 4 mA; sink up to ~20 mA short-circuit to Vcc+."
      },
      {
        "number": "2",
        "name": "Output1",
        "type": "output",
        "description": "Open-collector output of comparator 1. Requires an external pull-up resistor. Same drive characteristics as Output2."
      },
      {
        "number": "3",
        "name": "VCC+",
        "type": "power_in",
        "description": "Positive supply rail. Single-supply operation 2 to 36 V, or +Vcc in a split ±1 to ±18 V supply. Typ quiescent current 1.1 mA independent of Vcc."
      },
      {
        "number": "4",
        "name": "Inverting input 1",
        "type": "input",
        "description": "Inverting (-) input of comparator 1. Common-mode range includes ground: 0 to (Vcc+ − 1.5) V. Input bias current 25 nA typ; input offset ±1 mV typ (±2 mV max for A grade)."
      },
      {
        "number": "5",
        "name": "Non-inverting input 1",
        "type": "input",
        "description": "Non-inverting (+) input of comparator 1. Common-mode range 0 to (Vcc+ − 1.5) V; differential input voltage rating ±36 V."
      },
      {
        "number": "6",
        "name": "Inverting input 2",
        "type": "input",
        "description": "Inverting (-) input of comparator 2. Same electrical characteristics as input 1."
      },
      {
        "number": "7",
        "name": "Non-inverting input 2",
        "type": "input",
        "description": "Non-inverting (+) input of comparator 2."
      },
      {
        "number": "8",
        "name": "Inverting input 3",
        "type": "input",
        "description": "Inverting (-) input of comparator 3."
      },
      {
        "number": "9",
        "name": "Non-inverting input 3",
        "type": "input",
        "description": "Non-inverting (+) input of comparator 3."
      },
      {
        "number": "10",
        "name": "Inverting input 4",
        "type": "input",
        "description": "Inverting (-) input of comparator 4."
      },
      {
        "number": "11",
        "name": "Non-inverting input 4",
        "type": "input",
        "description": "Non-inverting (+) input of comparator 4."
      },
      {
        "number": "12",
        "name": "VCC-",
        "type": "power_in",
        "description": "Negative supply / ground rail. Tie to GND in single-supply operation, or to −Vcc in a split ±1 to ±18 V supply."
      },
      {
        "number": "13",
        "name": "Output4",
        "type": "output",
        "description": "Open-collector output of comparator 4. Requires external pull-up."
      },
      {
        "number": "14",
        "name": "Output3",
        "type": "output",
        "description": "Open-collector output of comparator 3. Requires external pull-up."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.st.com/resource/en/datasheet/lm239adt.pdf",
        "pages": 19,
        "sha256": "5adc47258717f516",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -3.81
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-14_3.9x8.7mm_P1.27mm@sha256:a885b619b22880c9",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "lm239adt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          8.7,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm239adt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          8.7,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ed8b10044002dbb50bb7409987172eeb0686475a9d7e4b0b62c4e1fd0de2f9c0",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "SOIC-14",
      "Category": "Op-amp/Cmp",
      "Pins": "14"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm239adt"
  ],
  "discovery_pitch": "LM239ADT (STMicroelectronics) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm239adt.kicad_sym",
    "lm239adt.kicad_mod",
    "lm239adt.glb",
    "lm239adt.step",
    "lm239adt-etched.step",
    "lm239adt.lbr",
    "docs/hero.png",
    "docs/lm239adt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "LM239ADT",
      "kind": "packaging"
    },
    {
      "mpn": "LM239ADTD",
      "kind": "packaging"
    },
    {
      "mpn": "LM239ADTPT",
      "kind": "packaging"
    },
    {
      "mpn": "LM239ADTQT",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T00:07:10.566Z"
}