INA143U

{
  "slug": "ina143u",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Differential Amplifiers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "amplifiers-comparators",
    "ina143u",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ina143u.kicad_sym",
    "ina143u.kicad_mod",
    "ina143u.glb",
    "ina143u.step",
    "ina143u.lbr",
    "docs/hero.png",
    "docs/ina143u-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ina143u-hero.glb",
    "ina143u-hero.overlay.json"
  ],
  "component": {
    "mpn": "INA143U",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Amplifiers/Comparators",
    "subcategory": "Differential Amplifiers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ina143",
    "parts": {
      "symbol": "ina143u.kicad_sym",
      "footprint": "ina143u.kicad_mod",
      "model_3d": "ina143u-hero.glb",
      "model_3d_plain": "ina143u.glb",
      "model_3d_step": "ina143u-etched.step",
      "model_3d_step_plain": "ina143u.step",
      "lbr": "ina143u.lbr"
    },
    "distributor_links": {
      "lcsc": "C962974",
      "digikey": "INA143U-ND",
      "mouser": "595-INA143U"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T19:55:58Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "INA143U-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "595-INA143U",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Ref",
        "type": "input",
        "description": "Output reference terminal, normally grounded; a voltage applied here is summed with the output to null offset, and its source impedance should be less than 10Ω to maintain good common-mode rejection."
      },
      {
        "number": "2",
        "name": "-In",
        "type": "input",
        "description": "Inverting differential input; source impedances on the two inputs must be nearly equal, since a 5Ω mismatch degrades typical CMR to about 86 dB, and input resistors above 100Ω degrade CMR even if matched."
      },
      {
        "number": "3",
        "name": "+In",
        "type": "input",
        "description": "Non-inverting differential input; source impedances must be nearly equal to the -In source for good common-mode rejection, and the common-mode input range extends beyond the supply rails."
      },
      {
        "number": "4",
        "name": "V-",
        "type": "power_in",
        "description": "Negative supply: operates from dual supplies of ±2.25V to ±18V or single supply of +4.5V to +36V (absolute maximum supply V+ to V- is 36V)."
      },
      {
        "number": "5",
        "name": "Sense",
        "type": "input",
        "description": "Sense terminal of the internal difference amplifier (shown in the block diagram); the text does not define its function or limits."
      },
      {
        "number": "6",
        "name": "Output",
        "type": "output",
        "description": "Amplifier output; with RL = 10kΩ to ground it swings to (V+) -1.5V positive and (V-) +1V negative, with continuous short-circuit current limit of -25/+32 mA and stable operation up to 1000 pF capacitive load."
      },
      {
        "number": "7",
        "name": "V+",
        "type": "power_in",
        "description": "Positive supply: operates from ±2.25V to ±18V dual or +4.5V to +36V single supply."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection; leave unconnected."
      }
    ],
    "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: Pin 5 'Sense' is named in the block diagram and pin configuration only; the datasheet text does not ; The SO-8 pin configuration text is column-scrambled in extraction. Pin numbers were mapped by pairin; Pin types for Ref and Sense (input) are inferred from their roles in the block diagram and applicati"
        ],
        "pages_sent": 22,
        "cost_usd": 0.0918,
        "at": "2026-10-08T19:55:31"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ina143",
        "pages": 22,
        "sha256": "8976aa5a4a2130c8",
        "source_tier": "lcsc"
      },
      "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": "ina143u.step",
        "role": "plain",
        "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": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ina143u-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": "c57803c7980b54d3fd83dafca49b69b14dfa8953c16f3cebb84f1819c50717f0",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}