main
Ray opa145idr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body w… f3c7075 1d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "opa145idr",
  "title": "OPA145IDR",
  "brief": "Texas Instruments FET Input Amplifiers, SOIC-8. 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",
    "opa145idr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "OPA145IDR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Amplifiers/Comparators",
    "subcategory": "FET Input Amplifiers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/opa145.pdf",
    "parts": {
      "symbol": "opa145idr.kicad_sym",
      "footprint": "opa145idr.kicad_mod",
      "model_3d": "opa145idr-hero.glb",
      "model_3d_plain": "opa145idr.glb",
      "model_3d_step": "opa145idr-etched.step",
      "model_3d_step_plain": "opa145idr.step",
      "lbr": "opa145idr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2060767",
      "digikey": "296-48623-2-ND",
      "mouser": "595-OPA145IDR"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T17:43:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-48623-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-OPA145IDR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; this pin can be left floating."
      },
      {
        "number": "2",
        "name": "-IN",
        "type": "input",
        "description": "Inverting input of the amplifier."
      },
      {
        "number": "3",
        "name": "+IN",
        "type": "input",
        "description": "Noninverting input of the amplifier; the input-voltage range includes the V- supply rail."
      },
      {
        "number": "4",
        "name": "V-",
        "type": "power_in",
        "description": "Negative (lowest) power supply; in single-supply use this is the ground reference, and the input range extends down to it."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; this pin can be left floating."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "output",
        "description": "Amplifier output, which swings rail-to-rail."
      },
      {
        "number": "7",
        "name": "V+",
        "type": "power_in",
        "description": "Positive (highest) power supply; recommended single-supply range is 4.5 V to 36 V (page 4)."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; this pin can be left floating."
      }
    ],
    "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 V- pin is labeled 'V±' in the Figure 5-1 drawing text but 'V–' in Table 5-1; I used V- per the t; The OPA2145 pinout (Figure 5-3, Table 5-2) is for the dual-channel part and does not apply to OPA145"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0613,
        "at": "2026-10-10T17:43:34"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/opa145.pdf",
        "pages": 44,
        "sha256": "a78a6ed6e2b0d410",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "opa145idr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "opa145idr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5cabcff52dfd520115aacfefd997365b5ecd16ecdb8213528f751775180dce37",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-8",
      "Category": "Amplifiers/Comparators",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "a78a6ed6e2b0d410",
      "rows": [
        {
          "name": "Input offset voltage (RTI), 25°C",
          "symbol": "VOS",
          "kind": "tolerance",
          "unit": "μV",
          "min": -150,
          "typ": 40,
          "max": 150,
          "conditions": "VS = ±18 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input offset voltage (RTI), 0°C to +85°C",
          "symbol": "VOS",
          "kind": "tolerance",
          "unit": "μV",
          "min": -280,
          "typ": null,
          "max": 280,
          "conditions": "VS = ±18 V, TA = 0°C to +85°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input offset voltage (RTI), -40°C to +125°C",
          "symbol": "VOS",
          "kind": "tolerance",
          "unit": "μV",
          "min": -350,
          "typ": null,
          "max": 350,
          "conditions": "VS = ±18 V, TA = –40°C to +125°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Offset voltage drift, OPA145ID (D) package",
          "symbol": "dVOS/dT",
          "kind": "tolerance",
          "unit": "μV/°C",
          "min": -1,
          "typ": 0.4,
          "max": 1,
          "conditions": "VS = ±18 V, TA = 0°C to +85°C, OPA145ID and OPA145IDGK packages",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Offset voltage drift, OPA145ID (D) package",
          "symbol": "dVOS/dT",
          "kind": "tolerance",
          "unit": "μV/°C",
          "min": -1.4,
          "typ": 0.5,
          "max": 1.4,
          "conditions": "VS = ±18 V, TA = –40°C to +125°C, OPA145ID and OPA145IDGK packages",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Power-supply rejection ratio, OPA145ID package",
          "symbol": "PSRR",
          "kind": "tolerance",
          "unit": "μV/V",
          "min": -0.3,
          "typ": 0.06,
          "max": 0.3,
          "conditions": "VS = ±2.25 V to ±18 V, OPA145ID package",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Power-supply rejection ratio, over temperature",
          "symbol": "PSRR",
          "kind": "tolerance",
          "unit": "μV/V",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "VS = ±2.25 V to ±18 V, TA = –40°C to +125°C, OPA145",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Input bias current, 25°C",
          "symbol": "IB",
          "kind": "tolerance",
          "unit": "pA",
          "min": -10,
          "typ": 2,
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          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input bias current, 0°C to +85°C",
          "symbol": "IB",
          "kind": "tolerance",
          "unit": "pA",
          "min": -600,
          "typ": null,
          "max": 600,
          "conditions": "TA = 0°C to +85°C",
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          "source": "datasheet"
        },
        {
          "name": "Input bias current, -40°C to +125°C",
          "symbol": "IB",
          "kind": "tolerance",
          "unit": "nA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "TA = –40°C to +125°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input offset current, 25°C",
          "symbol": "IOS",
          "kind": "tolerance",
          "unit": "pA",
          "min": -10,
          "typ": 2,
          "max": 10,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input offset current, 0°C to +85°C",
          "symbol": "IOS",
          "kind": "tolerance",
          "unit": "pA",
          "min": -600,
          "typ": null,
          "max": 600,
          "conditions": "TA = 0°C to +85°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input offset current, -40°C to +125°C",
          "symbol": "IOS",
          "kind": "tolerance",
          "unit": "nA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "TA = –40°C to +125°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Common-mode rejection ratio",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 126,
          "typ": 140,
          "max": null,
          "conditions": "VS = ±18 V, VCM = (V–) –0.1 V to (V+) – 3.5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Common-mode rejection ratio, over temperature",
          "symbol": "CMRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 118,
          "typ": null,
          "max": null,
          "conditions": "VS = ±18 V, VCM = (V–) –0.1 V to (V+) – 3.5 V, TA = –40°C to +125°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Open-loop voltage gain, OPA145ID package",
          "symbol": "AOL",
          "kind": "electrical",
          "unit": "dB",
          "min": 118,
          "typ": 123,
          "max": null,
          "conditions": "VO = (V–) + 0.35 V to (V+) – 0.35 V, RL = 10 kΩ, OPA145ID package only",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Open-loop voltage gain, RL = 2 kΩ",
          "symbol": "AOL",
          "kind": "electrical",
          "unit": "dB",
          "min": 106,
          "typ": 110,
          "max": null,
          "conditions": "VO = (V–) + 0.35 V to (V+) – 0.35 V, RL = 2 kΩ",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Open-loop voltage gain, RL = 2 kΩ, over temperature",
          "symbol": "AOL",
          "kind": "electrical",
          "unit": "dB",
          "min": 104,
          "typ": null,
          "max": null,
          "conditions": "VO = (V–) + 0.35 V to (V+) – 0.35 V, RL = 2 kΩ, TA = –40°C to +125°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit current",
          "symbol": "ISC",
          "kind": "electrical",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Voltage output swing from rail, RL = 10 kΩ",
          "symbol": "VO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 75,
          "conditions": "RL = 10 kΩ",
          "source_page": 7,
          "source": "datasheet"
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        {
          "name": "Voltage output swing from rail, RL = 10 kΩ, over temperature",
          "symbol": "VO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 90,
          "conditions": "RL = 10 kΩ, TA = –40°C to +125°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Voltage output swing from rail, RL = 2 kΩ",
          "symbol": "VO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 210,
          "conditions": "RL = 2 kΩ",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Voltage output swing from rail, RL = 2 kΩ, over temperature, OPA145ID",
          "symbol": "VO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 250,
          "conditions": "RL = 2 kΩ, TA = –40°C to +125°C, OPA145ID",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current (per amplifier), 25°C",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 445,
          "max": 475,
          "conditions": "IO = 0 mA",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current (per amplifier), 0°C to +85°C",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 590,
          "conditions": "TA = 0°C to +85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current (per amplifier), -40°C to +125°C",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 655,
          "conditions": "TA = –40°C to +125°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage, dual supply",
          "symbol": "VS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "Dual supply, (V+) – (V–)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage, single supply",
          "symbol": "VS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "Single supply, (V+) – (V–)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Signal input pin current",
          "symbol": "I",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "Signal input pins",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "Operating free-air temperature",
          "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,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage, dual supply (recommended)",
          "symbol": "VS",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.25,
          "typ": 15,
          "max": 18,
          "conditions": "Dual supply, (V+) – (V–)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage, single supply (recommended)",
          "symbol": "VS",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": 30,
          "max": 36,
          "conditions": "Single supply, (V+) – (V–)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ambient temperature (recommended)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": 25,
          "max": 125,
          "conditions": "Operating free-air temperature",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-ambient thermal resistance, D (SOIC-8)",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 136,
          "max": null,
          "conditions": "OPA145 D (SOIC) 8-pin package",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-case (top) thermal resistance, D (SOIC-8)",
          "symbol": "RθJC(top)",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 74,
          "max": null,
          "conditions": "OPA145 D (SOIC) 8-pin package",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-board thermal resistance, D (SOIC-8)",
          "symbol": "RθJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 62,
          "max": null,
          "conditions": "OPA145 D (SOIC) 8-pin package",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-top characterization parameter, D (SOIC-8)",
          "symbol": "ΨJT",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 19.7,
          "max": null,
          "conditions": "OPA145 D (SOIC) 8-pin package",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-board characterization parameter, D (SOIC-8)",
          "symbol": "ΨJB",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 54.8,
          "max": null,
          "conditions": "OPA145 D (SOIC) 8-pin package",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "opa145idr"
  ],
  "discovery_pitch": "OPA145IDR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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