ADS8505IDW

{
  "slug": "ads8505idw",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Analog To Digital Converters (ADC), SOIC-28-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "data acquisition",
    "ads8505idw",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ads8505idw.kicad_sym",
    "ads8505idw.kicad_mod",
    "ads8505idw.glb",
    "ads8505idw.step",
    "ads8505idw.lbr",
    "docs/hero.png",
    "docs/ads8505idw-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ads8505idw-hero.glb",
    "ads8505idw-hero.overlay.json"
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  "component": {
    "mpn": "ADS8505IDW",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-28-300mil",
    "pin_count": 28,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ads8505",
    "parts": {
      "symbol": "ads8505idw.kicad_sym",
      "footprint": "ads8505idw.kicad_mod",
      "model_3d": "ads8505idw-hero.glb",
      "model_3d_plain": "ads8505idw.glb",
      "model_3d_step": "ads8505idw-etched.step",
      "model_3d_step_plain": "ads8505idw.step",
      "lbr": "ads8505idw.lbr"
    },
    "distributor_links": {
      "lcsc": "C2870173",
      "digikey": "296-18678-5-ND",
      "mouser": "595-ADS8505IDW"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T09:17:51Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-18678-5-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-ADS8505IDW",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Analog input; ±10-V input range with 11.5 kΩ impedance."
      },
      {
        "number": "2",
        "name": "AGND1",
        "type": "power_in",
        "description": "Analog ground; serves as internal ground reference point."
      },
      {
        "number": "3",
        "name": "REF",
        "type": "passive",
        "description": "Reference input/output for 2.5-V internal reference; requires 2.2-µF Tantalum capacitor to ground."
      },
      {
        "number": "4",
        "name": "CAP",
        "type": "passive",
        "description": "Reference buffer capacitor node; connect 2.2-µF Tantalum capacitor to ground."
      },
      {
        "number": "5",
        "name": "AGND2",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "6",
        "name": "D15",
        "type": "tri_state",
        "description": "Data bit 15 (MSB) output in 2's complement format; high-impedance state when CS high or R/C low."
      },
      {
        "number": "7",
        "name": "D14",
        "type": "tri_state",
        "description": "Data bit 14 output in 2's complement format; high-impedance state when CS high or R/C low."
      },
      {
        "number": "8",
        "name": "D13",
        "type": "tri_state",
        "description": "Data bit 13 output in 2's complement format; high-impedance state when CS high or R/C low."
      },
      {
        "number": "9",
        "name": "D12",
        "type": "tri_state",
        "description": "Data bit 12 output in 2's complement format; high-impedance state when CS high or R/C low."
      },
      {
        "number": "10",
        "name": "D11",
        "type": "tri_state",
        "description": "Data bit 11 output in 2's complement format; high-impedance state when CS high or R/C low."
      },
      {
        "number": "11",
        "name": "D10",
        "type": "tri_state",
        "description": "Data bit 10 output in 2's complement format; high-impedance state when CS high or R/C low."
      },
      {
        "number": "12",
        "name": "D9",
        "type": "tri_state",
        "description": "Data bit 9 output in 2's complement format; high-impedance state when CS high or R/C low."
      },
      {
        "number": "13",
        "name": "D8",
        "type": "tri_state",
        "description": "Data bit 8 output in 2's complement format; high-impedance state when CS high or R/C low."
      },
      {
        "number": "14",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "15",
        "name": "D7",
        "type": "tri_state",
        "description": "Data bit 7 output in 2's complement format; high-impedance state when CS high or R/C low."
      },
      {
        "number": "16",
        "name": "D6",
        "type": "tri_state",
        "description": "Data bit 6 output in 2's complement format; high-impedance state when CS high or R/C low."
      },
      {
        "number": "17",
        "name": "D5",
        "type": "tri_state",
        "description": "Data bit 5 output in 2's complement format; high-impedance state when CS high or R/C low."
      },
      {
        "number": "18",
        "name": "D4",
        "type": "tri_state",
        "description": "Data bit 4 output in 2's complement format; high-impedance state when CS high or R/C low."
      },
      {
        "number": "19",
        "name": "D3",
        "type": "tri_state",
        "description": "Data bit 3 output in 2's complement format; high-impedance state when CS high or R/C low."
      },
      {
        "number": "20",
        "name": "D2",
        "type": "tri_state",
        "description": "Data bit 2 output in 2's complement format; high-impedance state when CS high or R/C low."
      },
      {
        "number": "21",
        "name": "D1",
        "type": "tri_state",
        "description": "Data bit 1 output in 2's complement format; high-impedance state when CS high or R/C low."
      },
      {
        "number": "22",
        "name": "D0",
        "type": "tri_state",
        "description": "Data bit 0 (LSB) output in 2's complement format; high-impedance state when CS high or R/C low."
      },
      {
        "number": "23",
        "name": "BYTE",
        "type": "input",
        "description": "Byte select input; selects 8 MSB (low) or 8 LSB (high) from 16-bit conversion result."
      },
      {
        "number": "24",
        "name": "R/C",
        "type": "input",
        "description": "Read/Convert input; falling edge with CS low initiates conversion, rising edge with CS low enables parallel output."
      },
      {
        "number": "25",
        "name": "CS",
        "type": "input",
        "description": "Chip select input internally ORed with R/C; falling edge with R/C low initiates new conversion."
      },
      {
        "number": "26",
        "name": "BUSY",
        "type": "output",
        "description": "Status output; goes low at conversion start and returns high when conversion complete and outputs updated."
      },
      {
        "number": "27",
        "name": "VANA",
        "type": "power_in",
        "description": "Analog supply input nominally +5 V; decouple with 0.1-µF ceramic and 10-µF tantalum capacitors to ground."
      },
      {
        "number": "28",
        "name": "VDIG",
        "type": "power_in",
        "description": "Digital supply input nominally +5 V; connect directly to pin 27 (VANA), must be ≤ VANA."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "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": [],
        "pages_sent": 10,
        "cost_usd": 0.1409,
        "at": "2026-10-07T09:17:34"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ads8505",
        "pages": 29,
        "sha256": "2dd1a92c2d7ac740",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 28,
        "described": 28,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b889a13dbe9ec59e79fa9f1b5118b00bfa54f9582392335ff3365b64afc264b1",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ads8505idw-etched.step",
        "role": "eda",
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        "sha256": "433ecc51f824185c852bbf51d9ae2a88cecb63ef8aa7aa8340356ea2b1248333",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}