INA115AU

{
  "slug": "ina115au",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Instrumentation Amplifiers, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "amplifiers-comparators",
    "ina115au",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ina115au.kicad_sym",
    "ina115au.kicad_mod",
    "ina115au.glb",
    "ina115au.step",
    "ina115au.lbr",
    "docs/hero.png",
    "docs/ina115au-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ina115au-hero.glb",
    "ina115au-hero.overlay.json"
  ],
  "component": {
    "mpn": "INA115AU",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16-300mil",
    "pin_count": 16,
    "category": "Amplifiers/Comparators",
    "subcategory": "Instrumentation Amplifiers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ina115",
    "parts": {
      "symbol": "ina115au.kicad_sym",
      "footprint": "ina115au.kicad_mod",
      "model_3d": "ina115au-hero.glb",
      "model_3d_plain": "ina115au.glb",
      "model_3d_step": "ina115au-etched.step",
      "model_3d_step_plain": "ina115au.step",
      "lbr": "ina115au.lbr"
    },
    "distributor_links": {
      "lcsc": "C2869917",
      "digikey": "2156-INA115AU-ND",
      "mouser": "595-INA115AU"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T16:52:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-INA115AU-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-INA115AU",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VO1",
        "type": "output",
        "description": "Output of input amplifier A1, which can drive external loads of 25kΩ || 200pF."
      },
      {
        "number": "2",
        "name": "Gain Sense1",
        "type": "input",
        "description": "Gain-sense connection for VO1; pins 2-3 are connected together for G=1 and the 25kΩ feedback path is shorted by tying pins 1-2-3 and 8-14-15 to reduce gain peaking."
      },
      {
        "number": "3",
        "name": "RG",
        "type": "passive",
        "description": "Gain-setting resistor terminal; G = 1 + 50kΩ/RG, and it is tied to pin 2 for G=1."
      },
      {
        "number": "4",
        "name": "V-IN",
        "type": "power_in",
        "description": "Inverting signal input, individually protected to ±40V and requiring a DC bias-current return path."
      },
      {
        "number": "5",
        "name": "V+IN",
        "type": "power_in",
        "description": "Non-inverting signal input, individually protected to ±40V and requiring a DC bias-current return path."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "7",
        "name": "V–",
        "type": "power_in",
        "description": "Negative power supply; the device operates from ±2.25V to ±18V."
      },
      {
        "number": "8",
        "name": "VO2",
        "type": "output",
        "description": "Output of input amplifier A2, which can drive external loads of 25kΩ || 200pF."
      },
      {
        "number": "9",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "10",
        "name": "Ref",
        "type": "input",
        "description": "Output reference terminal, normally grounded, which must be low impedance for good common-mode rejection (5Ω in series degrades CMR to about 80dB at G=1)."
      },
      {
        "number": "11",
        "name": "VO",
        "type": "output",
        "description": "Output of the output amplifier A3, which is stable with load capacitance up to 1000pF and has a short-circuit current of +20/-15mA."
      },
      {
        "number": "12",
        "name": "Feedback",
        "type": "input",
        "description": "Output sense feedback connection that must be connected to the output terminal (pin 11) for proper operation."
      },
      {
        "number": "13",
        "name": "V+",
        "type": "power_in",
        "description": "Positive power supply; the device operates from ±2.25V to ±18V."
      },
      {
        "number": "14",
        "name": "RG",
        "type": "passive",
        "description": "Second gain-setting resistor terminal, paired with pin 3 for the external RG; tied to pin 15 for G=1."
      },
      {
        "number": "15",
        "name": "Gain Sense2",
        "type": "input",
        "description": "Gain-sense connection for VO2; pins 14-15 are connected together for G=1."
      },
      {
        "number": "16",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      }
    ],
    "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 datasheet never states '300mil' explicitly. It gives the package as SOL-16 surface-mount (drawin; The pin numbering was read from the text layout of the top-view diagram on page 3 (pins 1-8 down the; Pin 3 and pin 14 are both labelled RG; the datasheet's gain-setting text does not say which one is t"
        ],
        "pages_sent": 17,
        "cost_usd": 0.0982,
        "at": "2026-10-08T16:51:41"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ina115",
        "pages": 17,
        "sha256": "bd22feb16c03abae",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ina115au.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ina115au-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "cc3f40dd8d2528eb6928b235094d05d81323adac8feea9efcec636be76ddffca",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}