ina326ea

{
  "slug": "ina326ea",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Instrumentation OpAmps, VSSOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "op-amp-cmp",
    "ina326ea"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ina326ea.kicad_sym",
    "ina326ea.kicad_mod",
    "ina326ea.glb",
    "ina326ea.step",
    "ina326ea.lbr",
    "docs/hero.png",
    "docs/ina326ea-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ina326ea-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "component": {
    "mpn": "INA326EA",
    "manufacturer": "Texas Instruments",
    "package": "VSSOP-8",
    "pin_count": 8,
    "category": "Instrumentation OpAmps",
    "datasheet": "https://www.ti.com/lit/ds/symlink/ina326ea.pdf",
    "parts": {
      "symbol": "ina326ea.kicad_sym",
      "footprint": "ina326ea.kicad_mod",
      "model_3d": "ina326ea-etched.glb",
      "model_3d_plain": "ina326ea.glb",
      "model_3d_step": "ina326ea-etched.step",
      "model_3d_step_plain": "ina326ea.step",
      "lbr": "ina326ea.lbr"
    },
    "pins": [
      {
        "number": "1",
        "name": "R1",
        "type": "passive",
        "description": "Gain-set resistor terminal. External R1 is connected between pins 1 and 8 to set the input-stage gain. Minimize stray capacitance on this node for best high-frequency CMR; recommended R1 ≥ 2kΩ."
      },
      {
        "number": "2",
        "name": "VIN-",
        "type": "input",
        "description": "Inverting analog input. Rail-to-rail input range extending from (V-) - 0.02V to (V+) + 0.1V. Diode-clamped to supply rails; external signals must be current-limited to ±10mA if they can swing more than 0.5V beyond the rails."
      },
      {
        "number": "3",
        "name": "VIN+",
        "type": "input",
        "description": "Non-inverting analog input. Rail-to-rail input range from (V-) - 0.02V to (V+) + 0.1V. Diode-clamped to supply rails; external signals must be current-limited to ±10mA if they can swing more than 0.5V beyond the rails."
      },
      {
        "number": "4",
        "name": "V-",
        "type": "power_in",
        "description": "Negative supply pin. Tie to GND for single-supply operation (+2.7V to +5.5V) or to the negative rail for dual-supply operation (e.g. -2.5V). A 0.1µF bypass capacitor from pin 7 (V+) to pin 4 (V-) placed close to the device is strongly recommended."
      },
      {
        "number": "5",
        "name": "R2/IACOMMON",
        "type": "passive",
        "description": "Output reference terminal / low side of external R2. This node (IACOMMON) sets the output offset reference; the output voltage is referenced to IACOMMON. R2 (typically 100kΩ) connects between pins 5 and 6 to set the output-stage gain. Must be sufficiently filtered to avoid nonlinearity with large output swings."
      },
      {
        "number": "6",
        "name": "VO",
        "type": "output",
        "description": "Amplifier output. Rail-to-rail, swings to within 10mV of the supply rails. Continuous short-circuit protected. Connects to the top of external R2 and to the optional output filter (RO/CO) that combines with C2 for a 2-pole response."
      },
      {
        "number": "7",
        "name": "V+",
        "type": "power_in",
        "description": "Positive supply pin. Single-supply operation from +2.7V to +5.5V, or +2.5V in split-supply operation. Absolute maximum +5.5V. A 0.1µF bypass capacitor from pin 7 (V+) to pin 4 (V-) placed close to the device is strongly recommended."
      },
      {
        "number": "8",
        "name": "R1",
        "type": "passive",
        "description": "Gain-set resistor terminal. External R1 connects between pins 1 and 8 to set the input-stage gain (G = 2·R2/R1). Minimize stray capacitance on this node for best high-frequency CMR; R1 must be ≥ 2kΩ."
      }
    ],
    "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": {
      "digikey": false,
      "mouser": false
    },
    "distributor_check": {
      "checked_at": "2026-10-05T19:01:50Z",
      "source": "Component Ocean /api/assign-pns + lcsc_map",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "models_3d": [
      {
        "file": "ina326ea.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.1,
          2.0,
          0.85
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "353552981eef35cb93635057d4aeb89aef22648c77af6fd095e328bfe6b834bd",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ina326ea-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.1,
          2.0,
          0.85
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ce81d0cff723dca1e9a9f030a7d954448e06906cb741adefed7ae7ce3fc10ce7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}