OPA228PA

{
  "slug": "opa228pa",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Precision Op Amps, PDIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "amplifiers-comparators",
    "opa228pa",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "opa228pa.kicad_sym",
    "opa228pa.kicad_mod",
    "opa228pa.glb",
    "opa228pa.step",
    "opa228pa.lbr",
    "docs/hero.png",
    "docs/opa228pa-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "opa228pa-hero.glb",
    "opa228pa-hero.overlay.json",
    "opa228pa-etched.glb"
  ],
  "component": {
    "mpn": "OPA228PA",
    "manufacturer": "Texas Instruments",
    "package": "PDIP-8",
    "pin_count": 8,
    "category": "Amplifiers/Comparators",
    "subcategory": "Precision Op Amps",
    "datasheet": "https://www.ti.com/lit/ds/symlink/opa228.pdf",
    "parts": {
      "symbol": "opa228pa.kicad_sym",
      "footprint": "opa228pa.kicad_mod",
      "model_3d": "opa228pa-hero.glb",
      "model_3d_plain": "opa228pa-etched.glb",
      "model_3d_step": "opa228pa-etched.step",
      "model_3d_step_plain": "opa228pa.step",
      "lbr": "opa228pa.lbr"
    },
    "distributor_links": {
      "lcsc": "C2860800",
      "digikey": "296-41586-5-ND",
      "mouser": "595-OPA228PA"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T22:54:13Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-41586-5-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-OPA228PA",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Offset Trim",
        "type": "input",
        "description": "Input offset voltage trim; leave floating if not used."
      },
      {
        "number": "2",
        "name": "-In",
        "type": "input",
        "description": "Inverting input."
      },
      {
        "number": "3",
        "name": "+In",
        "type": "input",
        "description": "Noninverting input."
      },
      {
        "number": "4",
        "name": "V-",
        "type": "power_in",
        "description": "Negative (lowest) power supply."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; can be left floating."
      },
      {
        "number": "6",
        "name": "Output",
        "type": "output",
        "description": "Output."
      },
      {
        "number": "7",
        "name": "V+",
        "type": "power_in",
        "description": "Positive (highest) power supply."
      },
      {
        "number": "8",
        "name": "Trim",
        "type": "passive",
        "description": "Input offset voltage trim; leave floating if not used."
      }
    ],
    "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: Table 5-1 gives no pin type for pin 8 (Trim), only a dash. It is assigned passive here as an assumpt"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0188,
        "at": "2026-11-05T22:54:05"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/opa228.pdf",
        "pages": 50,
        "sha256": "159e5e30815447ed",
        "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": "opa228pa.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "opa228pa-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ef7c4f58e9235f20b540b768c81b88d992c400380db5288520ddc4b25798b164",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}