LF347DT

{
  "schema_version": 1,
  "type": "component",
  "slug": "lf347dt",
  "title": "LF347DT",
  "brief": "STMicroelectronics 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",
    "lf347dt"
  ],
  "component": {
    "mpn": "LF347DT",
    "manufacturer": "STMicroelectronics",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Op-amp/Cmp",
    "subcategory": "FET InputAmplifiers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/7a1ed7a077edb4e6222d417c8192c947.pdf",
    "parts": {
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      "lbr": "lf347dt.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "OUT1",
        "type": "output",
        "description": "Output of op-amp 1."
      },
      {
        "number": "2",
        "name": "IN1-",
        "type": "input",
        "description": "Inverting input of op-amp 1. High-impedance JFET input."
      },
      {
        "number": "3",
        "name": "IN1+",
        "type": "input",
        "description": "Non-inverting input of op-amp 1. High-impedance JFET input."
      },
      {
        "number": "4",
        "name": "VCC+",
        "type": "power_in",
        "description": "Positive supply voltage. Absolute maximum +/-18 V (LF347: split supplies typ. +/-15 V). Shared by all four amplifiers."
      },
      {
        "number": "5",
        "name": "IN2+",
        "type": "input",
        "description": "Non-inverting input of op-amp 2. High-impedance JFET input."
      },
      {
        "number": "6",
        "name": "IN2-",
        "type": "input",
        "description": "Inverting input of op-amp 2. High-impedance JFET input."
      },
      {
        "number": "7",
        "name": "OUT2",
        "type": "output",
        "description": "Output of op-amp 2."
      },
      {
        "number": "8",
        "name": "OUT3",
        "type": "output",
        "description": "Output of op-amp 3."
      },
      {
        "number": "9",
        "name": "IN3-",
        "type": "input",
        "description": "Inverting input of op-amp 3. High-impedance JFET input."
      },
      {
        "number": "10",
        "name": "IN3+",
        "type": "input",
        "description": "Non-inverting input of op-amp 3. High-impedance JFET input."
      },
      {
        "number": "11",
        "name": "VCC-",
        "type": "power_in",
        "description": "Negative supply voltage. Absolute maximum +/-18 V (LF347: split supplies typ. +/-15 V). Shared by all four amplifiers."
      },
      {
        "number": "12",
        "name": "IN4+",
        "type": "input",
        "description": "Non-inverting input of op-amp 4. High-impedance JFET input."
      },
      {
        "number": "13",
        "name": "IN4-",
        "type": "input",
        "description": "Inverting input of op-amp 4. High-impedance JFET input."
      },
      {
        "number": "14",
        "name": "OUT4",
        "type": "output",
        "description": "Output of op-amp 4."
      }
    ],
    "provenance": {
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        "described": 14,
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        "refuses_to_fabricate": true
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "SOIC-14",
      "Category": "Op-amp/Cmp",
      "Pins": "14"
    },
    "characteristics": {
      "version": 1,
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        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -18,
          "typ": null,
          "max": 18,
          "conditions": "",
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        {
          "name": "Input voltage",
          "symbol": "Vi",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -15,
          "typ": null,
          "max": 15,
          "conditions": "Must not exceed supply voltage or 15 V, whichever is less",
          "source_page": 2,
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        },
        {
          "name": "Differential input voltage",
          "symbol": "Vid",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "Non-inverting input with respect to inverting input",
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          "name": "Power dissipation",
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          "max": 680,
          "conditions": "",
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        {
          "name": "Operating free-air temperature range (LF347)",
          "symbol": "Toper",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": 0,
          "typ": null,
          "max": 70,
          "conditions": "LF347",
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        },
        {
          "name": "Storage temperature range",
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          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
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          "name": "Input offset voltage",
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          "min": null,
          "typ": 3,
          "max": 10,
          "conditions": "Rs = 10kΩ, Tamb = 25°C",
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          "kind": "electrical",
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          "min": null,
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          "name": "Input offset current",
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          "kind": "electrical",
          "unit": "nA",
          "min": null,
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        },
        {
          "name": "Input bias current",
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          "kind": "electrical",
          "unit": "pA",
          "min": null,
          "typ": 20,
          "max": 200,
          "conditions": "Tamb = 25°C",
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        {
          "name": "Input bias current",
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          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "Tmin ≤ Tamb ≤ Tmax",
          "source_page": 3,
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        },
        {
          "name": "Large signal voltage gain",
          "symbol": "Avd",
          "kind": "electrical",
          "unit": "V/mV",
          "min": 50,
          "typ": 200,
          "max": null,
          "conditions": "RL = 2kΩ, Vo = ±10V, Tamb = 25°C",
          "source_page": 3,
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        {
          "name": "Large signal voltage gain",
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          "kind": "electrical",
          "unit": "V/mV",
          "min": 25,
          "typ": null,
          "max": null,
          "conditions": "RL = 2kΩ, Vo = ±10V, Tmin ≤ Tamb ≤ Tmax",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage rejection ratio",
          "symbol": "SVR",
          "kind": "electrical",
          "unit": "dB",
          "min": 80,
          "typ": 86,
          "max": null,
          "conditions": "RS = 10kΩ, Tamb = 25°C",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Supply voltage rejection ratio",
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          "source_page": 3,
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        {
          "name": "Supply current, per amp, no load",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
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          "typ": 1.4,
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          "conditions": "Tamb = 25°C",
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        {
          "name": "Input common mode voltage range",
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          "kind": "electrical",
          "unit": "V",
          "min": -12,
          "typ": null,
          "max": 15,
          "conditions": "",
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          "name": "Common mode rejection ratio",
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          "kind": "electrical",
          "unit": "dB",
          "min": 70,
          "typ": 86,
          "max": null,
          "conditions": "RS = 10kΩ, Tamb = 25°C",
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          "name": "Common mode rejection ratio",
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          "min": 70,
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          "max": null,
          "conditions": "RS = 10kΩ, Tmin ≤ Tamb ≤ Tmax",
          "source_page": 3,
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        {
          "name": "Output short-circuit current",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "mA",
          "min": 10,
          "typ": 40,
          "max": 60,
          "conditions": "Tamb = 25°C",
          "source_page": 3,
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          "name": "Output short-circuit current",
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          "conditions": "Tmin ≤ Tamb ≤ Tmax",
          "source_page": 3,
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          "name": "Output voltage swing (±Vopp)",
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          "kind": "electrical",
          "unit": "V",
          "min": 10,
          "typ": 12,
          "max": null,
          "conditions": "Tamb = 25°C, RL = 2kΩ",
          "source_page": 3,
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        {
          "name": "Output voltage swing (±Vopp)",
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          "kind": "electrical",
          "unit": "V",
          "min": 12,
          "typ": 13.5,
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          "source_page": 3,
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        {
          "name": "Output voltage swing (±Vopp)",
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          "kind": "electrical",
          "unit": "V",
          "min": 10,
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          "source_page": 3,
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        {
          "name": "Output voltage swing (±Vopp)",
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          "kind": "electrical",
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          "min": 12,
          "typ": null,
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          "conditions": "Tmin ≤ Tamb ≤ Tmax, RL = 10kΩ",
          "source_page": 3,
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        },
        {
          "name": "Slew rate",
          "symbol": "SR",
          "kind": "electrical",
          "unit": "V/µs",
          "min": 12,
          "typ": 16,
          "max": null,
          "conditions": "Vi = 10V, RL = 2kΩ, CL = 100pF, Tamb = 25°C, unity gain",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Gain bandwidth product",
          "symbol": "GBP",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 2.5,
          "max": 4,
          "conditions": "f = 100kHz, Tamb = 25°C, Vin = 10mV, RL = 2kΩ, CL = 100pF",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
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  },
  "variants": [
    {
      "mpn": "LF347DTD",
      "kind": "packaging"
    },
    {
      "mpn": "LF347DT",
      "kind": "packaging"
    },
    {
      "mpn": "LF347DTN",
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  "updated_at": "2026-09-24T23:55:29.476Z"
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