ADS7822U

{
  "schema_version": 1,
  "type": "component",
  "slug": "ads7822u",
  "title": "ADS7822U",
  "brief": "Texas Instruments Analog To Digital Converters (ADC), SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "data acquisition",
    "ads7822u",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ADS7822U",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ads7822",
    "parts": {
      "symbol": "ads7822u.kicad_sym",
      "footprint": "ads7822u.kicad_mod",
      "model_3d": "ads7822u-etched.glb",
      "model_3d_plain": "ads7822u.glb",
      "model_3d_step": "ads7822u-etched.step",
      "model_3d_step_plain": "ads7822u.step",
      "lbr": "ads7822u.lbr"
    },
    "distributor_links": {
      "lcsc": "C16324"
    },
    "pins": [
      {
        "number": "1",
        "name": "VREF",
        "type": "power_in",
        "description": "Reference voltage input; acceptable range 50mV to VCC sets the full-scale analog input range."
      },
      {
        "number": "2",
        "name": "+In",
        "type": "input",
        "description": "Noninverting analog input; operating range must be maintained within GND-200mV to VCC+200mV for proper linearity."
      },
      {
        "number": "3",
        "name": "-In",
        "type": "input",
        "description": "Inverting analog input with operating range of GND-200mV to GND+1.0V; connect to local ground or remote ground sense reference."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for all analog and digital circuits."
      },
      {
        "number": "5",
        "name": "CS/SHDN",
        "type": "input",
        "description": "Chip select (active low) that initiates conversion on falling edge; high level activates shutdown mode with 3μA maximum quiescent current."
      },
      {
        "number": "6",
        "name": "DOUT",
        "type": "tri_state",
        "description": "Serial data output transmitting 12-bit conversion result MSB-first on DCLOCK falling edge; tri-states when CS is high."
      },
      {
        "number": "7",
        "name": "DCLOCK",
        "type": "input",
        "description": "Data clock input synchronizing serial data output; operating frequency range 10kHz to 3.2MHz maximum."
      },
      {
        "number": "8",
        "name": "+VCC",
        "type": "power_in",
        "description": "Power supply input with operating range 2.0V to 5.25V; specified performance guaranteed over 2.7V to 5.25V range."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 31,
        "cost_usd": 0.2923,
        "at": "2026-09-23T12:16:32"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ads7822",
        "pages": 31,
        "sha256": "889c901a1116a5b2",
        "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": "ads7822u.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": "ads7822u-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": "1f9a047f2c9498b57ec4eba9fd2570b60da3972c925182106ce84e016790cb9f",
        "checked": "2026-11-03",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-8",
      "Category": "Data Acquisition",
      "Pins": "8"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ads7822u"
  ],
  "discovery_pitch": "ADS7822U (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ads7822u.kicad_sym",
    "ads7822u.kicad_mod",
    "ads7822u.glb",
    "ads7822u.step",
    "ads7822u.lbr",
    "docs/hero.png",
    "docs/ads7822u-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T16:00:38.009Z"
}