ADR4525

{
  "schema_version": 1,
  "type": "component",
  "slug": "adr4525",
  "title": "ADR4525",
  "brief": "ADI 2.5 V ultra-high-precision voltage reference, SOIC-8. 0.02% initial accuracy, 2 ppm/C, low noise. Datasheet-verified.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "reference",
    "voltage-reference",
    "precision",
    "low-noise",
    "soic-8",
    "analog-devices"
  ],
  "component": {
    "mpn": "ADR4525",
    "manufacturer": "Analog Devices",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Reference",
    "subcategory": "Voltage reference",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/ADR4520_4525_4530_4533_4540_4550.pdf",
    "parts": {
      "symbol": "adr4525.kicad_sym",
      "footprint": "adr4525.kicad_mod",
      "model_3d": "adr4525-etched.glb",
      "model_3d_plain": "adr4525.glb",
      "model_3d_step": "adr4525-etched.step",
      "model_3d_step_plain": "adr4525.step",
      "lbr": "adr4525.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "NIC",
        "type": "unconnected",
        "description": "Not Internally Connected. This pin is not connected internally; may be tied to any potential or left floating."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Input Voltage Connection. Operating range 3 V to 15 V. Decouple with a 0.1 µF ceramic capacitor to GND close to the pin."
      },
      {
        "number": "3",
        "name": "NIC",
        "type": "unconnected",
        "description": "Not Internally Connected. This pin is not connected internally."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return for the device. Connect to the system analog ground with a low-impedance path."
      },
      {
        "number": "5",
        "name": "NIC",
        "type": "unconnected",
        "description": "Not Internally Connected. This pin is not connected internally."
      },
      {
        "number": "6",
        "name": "VOUT",
        "type": "power_out",
        "description": "Reference Output Voltage, nominal 2.500 V. Sources up to +10 mA and sinks up to -10 mA. Recommended output capacitor 1 µF (load capacitance range 1 µF to 100 µF)."
      },
      {
        "number": "7",
        "name": "NIC",
        "type": "unconnected",
        "description": "Not Internally Connected. This pin is not connected internally."
      },
      {
        "number": "8",
        "name": "DNC",
        "type": "unconnected",
        "description": "Do Not Connect. Do not connect to this pin, do not tie to any potential and do not route a trace to it."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.analog.com/media/en/technical-documentation/data-sheets/ADR4520_4525_4530_4533_4540_4550.pdf",
        "pages": 41,
        "sha256": "de2dca59e24477c2",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8_3.9x4.9mm_P1.27mm@sha256:074ecb2092b24fa4",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "adr4525.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": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "adr4525-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": "8c7728d4245fd938f429734751015ccd6e54437f83e0d1f3528ccc9548c7dcac",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "Series (bandgap) voltage reference",
      "Output": "2.5 V",
      "Initial accuracy": "+/-0.02% (A grade)",
      "Temp coefficient": "2 ppm/C (max)",
      "Output noise": "1.25 uV p-p (0.1-10 Hz)",
      "Supply": "Output + 0.3 V to 15 V",
      "Package": "SOIC-8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "adr4525",
    "2.5v voltage reference",
    "precision voltage reference",
    "low noise reference"
  ],
  "discovery_pitch": "ADI ADR4525 2.5 V ultra-high-precision voltage reference (SOIC-8) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "adr4525.kicad_sym",
    "adr4525.kicad_mod",
    "adr4525.glb",
    "adr4525.step",
    "adr4525.lbr",
    "docs/hero.png",
    "docs/adr4525-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "adr4525-etched.step"
  ]
}