opa551ua

{
  "slug": "opa551ua",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Operational Amplifier, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "op-amp-cmp",
    "opa551ua"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
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  "files": [
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    "README.md",
    "opa551ua.kicad_sym",
    "opa551ua.kicad_mod",
    "opa551ua.glb",
    "opa551ua.step",
    "opa551ua.lbr",
    "docs/hero.png",
    "docs/opa551ua-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "opa551ua-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "component": {
    "mpn": "OPA551UA",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Operational Amplifier",
    "datasheet": "https://www.ti.com/lit/ds/symlink/opa551ua.pdf",
    "parts": {
      "symbol": "opa551ua.kicad_sym",
      "footprint": "opa551ua.kicad_mod",
      "model_3d": "opa551ua-etched.glb",
      "model_3d_plain": "opa551ua.glb",
      "model_3d_step": "opa551ua-etched.step",
      "model_3d_step_plain": "opa551ua.step",
      "lbr": "opa551ua.lbr"
    },
    "pins": [
      {
        "number": "1",
        "name": "V-",
        "type": "power_in",
        "description": "Negative (lowest) power supply. Operating supply range ±4 V to ±30 V (8 V to 60 V between rails). Pins 1, 4, and 5 are internally connected for improved thermal performance; pin 4 must carry the primary V- supply current, pins 1 and 5 should be connected to a thermal mass rather than used as feedthroughs to V-."
      },
      {
        "number": "2",
        "name": "-IN",
        "type": "input",
        "description": "Inverting op-amp input. Common-mode range (V-)+2.5 V to (V+)-2.5 V; input bias current ±20 pA typ (±100 pA max). Internal clamp diodes protect against voltages beyond the rails; external input current must be limited to 5 mA."
      },
      {
        "number": "3",
        "name": "+IN",
        "type": "input",
        "description": "Noninverting op-amp input. Common-mode range (V-)+2.5 V to (V+)-2.5 V; input bias current ±20 pA typ. Internal clamp diodes protect against voltages beyond the rails; external input current must be limited to 5 mA."
      },
      {
        "number": "4",
        "name": "V-",
        "type": "power_in",
        "description": "Negative (lowest) power supply - primary current carrier for V-. Operating supply range ±4 V to ±30 V (8 V to 60 V total between rails). Bypass with 0.1 µF (and 10 µF) capacitor near the pin."
      },
      {
        "number": "5",
        "name": "V-",
        "type": "power_in",
        "description": "Negative (lowest) power supply. Internally tied to pins 1 and 4 for improved thermal performance. Should be connected to a thermal mass rather than used as a PCB feedthrough for V-."
      },
      {
        "number": "6",
        "name": "Out",
        "type": "output",
        "description": "Amplifier output. Swings to within ~2 V of the rails at 10 mA and ~3 V of the rails at 200 mA. Continuous output current up to ±200 mA; short-circuit current limited to approximately ±380 mA. Stable driving capacitive loads (see Figure 19 for allowed CL vs. gain)."
      },
      {
        "number": "7",
        "name": "V+",
        "type": "power_in",
        "description": "Positive (highest) power supply. Operating supply range ±4 V to ±30 V (8 V to 60 V total between rails). Quiescent current ±7 mA typ (±8.5 mA max). Bypass with 0.1 µF (and 10 µF) capacitor near the pin."
      },
      {
        "number": "8",
        "name": "Flag",
        "type": "output",
        "description": "Thermal-shutdown indicator (current-source output). Sources ~50 nA (1 µA max) during normal operation and 80-160 µA (120 µA typ) when the die exceeds ~160 °C and enters thermal shutdown (resets at ~140 °C). Compliance range V- to (V+)-1.5 V; an external pull-down resistor converts the current to a logic-level signal."
      }
    ],
    "provenance": {
      "rebuilt": "component block rebuilt 2026-10-05 from this page's own README pinout table and .kicad_sym (pins cross-checked), no re-extraction"
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "distributor_links": {
      "lcsc": "C2878170",
      "digikey": "OPA551UA-ND",
      "mouser": "595-OPA551UA"
    },
    "distributor_check": {
      "checked_at": "2026-10-05T19:13:20Z",
      "source": "Component Ocean /api/assign-pns + lcsc_map",
      "digikey": {
        "pn": "OPA551UA-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-OPA551UA",
        "status": "found"
      }
    },
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
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        "checked": "2026-10-07",
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        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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  },
  "metadata": {
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": null,
      "rows": [
        {
          "name": "Input offset voltage",
          "symbol": "VOS",
          "kind": "tolerance",
          "unit": "mV",
          "min": -3,
          "typ": 1,
          "max": 3,
          "conditions": "VCM = 0 V, IO = 0 mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input offset voltage over temperature",
          "symbol": "VOS",
          "kind": "tolerance",
          "unit": "mV",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "TJ = –40°C to 125°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input offset voltage vs power supply (PSRR)",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "µV/V",
          "min": null,
          "typ": 10,
          "max": 30,
          "conditions": "VS = ±4 V to ±30 V, VCM = 0 V",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "Input bias current",
          "symbol": "IB",
          "kind": "electrical",
          "unit": "pA",
          "min": -100,
          "typ": 20,
          "max": 100,
          "conditions": "",
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        {
          "name": "Input offset current",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "pA",
          "min": -100,
          "typ": 3,
          "max": 100,
          "conditions": "",
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        },
        {
          "name": "Common-mode rejection ratio",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 92,
          "typ": 102,
          "max": null,
          "conditions": "–27.5 V < VCM < +27.5 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Open-loop voltage gain",
          "symbol": "AOL",
          "kind": "electrical",
          "unit": "dB",
          "min": 110,
          "typ": 126,
          "max": null,
          "conditions": "RL = 3 kΩ, –28 V < VO < +28 V",
          "source_page": 5,
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        {
          "name": "Open-loop voltage gain over temperature",
          "symbol": "AOL",
          "kind": "electrical",
          "unit": "dB",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "RL = 3 kΩ, –28 V < VO < +28 V, TJ = –40°C to 125°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum continuous output current",
          "symbol": "IO",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": -200,
          "typ": null,
          "max": 200,
          "conditions": "DC",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown status output, normal operation (sourcing)",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.05,
          "max": 1,
          "conditions": "Normal operation, sourcing",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown status output, thermal shutdown (sourcing)",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": 80,
          "typ": 120,
          "max": 160,
          "conditions": "Thermal shutdown, sourcing",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operating voltage range (per supply, ±)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 7,
          "max": 8.5,
          "conditions": "IO = 0 mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current over temperature",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "TJ = –40°C to 125°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Specified temperature range (electrical)",
          "symbol": "TJ",
          "kind": "electrical",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
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        {
          "name": "Operating temperature range (electrical)",
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          "kind": "electrical",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
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        },
        {
          "name": "Supply voltage VS (recommended)",
          "symbol": "VS",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 8,
          "typ": null,
          "max": 60,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Specified temperature (recommended)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage VS = (V+) to (V–)",
          "symbol": "VS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Electrostatic discharge, human-body model (HBM)",
          "symbol": "V(ESD)",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -3000,
          "typ": null,
          "max": 3000,
          "conditions": "ANSI/ESDA/JEDEC JS-001",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-ambient thermal resistance",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 96.7,
          "max": null,
          "conditions": "SOIC (D) 8-pin package",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-case (top) thermal resistance",
          "symbol": "RθJC(top)",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 38.7,
          "max": null,
          "conditions": "SOIC (D) 8-pin package",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-board thermal resistance",
          "symbol": "RθJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 38.2,
          "max": null,
          "conditions": "SOIC (D) 8-pin package",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  }
}