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Ray Set visibility: public 7706e2e 2d ago
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  "type": "component",
  "slug": "ina2181a1idgsr",
  "title": "INA2181A1IDGSR",
  "brief": "Texas Instruments Current Sense Amplifiers, VSSOP-10-0.5mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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    "mpn": "INA2181A1IDGSR",
    "manufacturer": "Texas Instruments",
    "package": "VSSOP-10-0.5mm",
    "pin_count": 10,
    "category": "Amplifiers/Comparators",
    "subcategory": "Current Sense Amplifiers",
    "datasheet": "https://www.ti.com.cn/cn/lit/ds/symlink/ina2181.pdf",
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    "distributor_links": {
      "lcsc": 1848164,
      "digikey": "296-INA2181A1IDGSRTR-ND",
      "mouser": "595-INA2181A1IDGSR"
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    "distributor_check": {
      "checked_at": "2026-10-03T00:33:12Z",
      "source": "Component Ocean /api/assign-pns",
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        "pn": "296-INA2181A1IDGSRTR-ND",
        "status": "found"
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        "pn": "595-INA2181A1IDGSR",
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    "pins": [
      {
        "number": "1",
        "name": "OUT1",
        "type": "output",
        "description": "Channel 1 analog output voltage proportional to measured current across sense resistor."
      },
      {
        "number": "2",
        "name": "IN–1",
        "type": "input",
        "description": "Channel 1 current sense amplifier negative input; connect to load side for high-side sensing or to ground side for low-side sensing configuration."
      },
      {
        "number": "3",
        "name": "IN+1",
        "type": "input",
        "description": "Channel 1 current sense amplifier positive input; connect to bus voltage side for high-side sensing or to load side for low-side sensing configuration."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Analog ground reference for the differential measurement circuit."
      },
      {
        "number": "5",
        "name": "REF1",
        "type": "input",
        "description": "Channel 1 reference input for setting output baseline voltage, operating range 0V to VS."
      },
      {
        "number": "6",
        "name": "REF2",
        "type": "input",
        "description": "Channel 2 reference input for setting output baseline voltage, operating range 0V to VS."
      },
      {
        "number": "7",
        "name": "IN+2",
        "type": "input",
        "description": "Channel 2 current sense amplifier positive input; connect to bus voltage side for high-side sensing or to load side for low-side sensing configuration."
      },
      {
        "number": "8",
        "name": "IN–2",
        "type": "input",
        "description": "Channel 2 current sense amplifier negative input; connect to load side for high-side sensing or to ground side for low-side sensing configuration."
      },
      {
        "number": "9",
        "name": "OUT2",
        "type": "output",
        "description": "Channel 2 analog output voltage proportional to measured current across sense resistor."
      },
      {
        "number": "10",
        "name": "VS",
        "type": "power_in",
        "description": "Analog power supply input pin, operating range 2.7V to 5.5V."
      }
    ],
    "provenance": {
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      "factory_chain": {
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        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin name notation differs between diagram and table: Figure 5-3 shows 'IN±1' and 'IN±2' in the packa"
        ],
        "pages_sent": 33,
        "cost_usd": 0.2432,
        "at": "2026-10-03T00:32:47"
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      "datasheet": {
        "url": "https://www.ti.com.cn/cn/lit/ds/symlink/ina2181.pdf",
        "pages": 62,
        "sha256": "16077f586e92eff4",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 10,
        "described": 10,
        "cites_pages": true,
        "refuses_to_fabricate": true
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  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VSSOP-10-0.5mm",
      "Category": "Amplifiers/Comparators",
      "Pins": "10"
    }
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  "discovery_triggers": [
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  "discovery_pitch": "INA2181A1IDGSR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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