ADS8505IDWR

{
  "slug": "ads8505idwr",
  "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",
    "ads8505idwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
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    "README.md",
    "ads8505idwr.kicad_sym",
    "ads8505idwr.kicad_mod",
    "ads8505idwr.glb",
    "ads8505idwr.step",
    "ads8505idwr.lbr",
    "docs/hero.png",
    "docs/ads8505idwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
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  "component": {
    "mpn": "ADS8505IDWR",
    "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": "ads8505idwr.kicad_sym",
      "footprint": "ads8505idwr.kicad_mod",
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      "model_3d_plain": "ads8505idwr.glb",
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      "model_3d_step_plain": "ads8505idwr.step",
      "lbr": "ads8505idwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2670844",
      "digikey": "ADS8505IDWR-ND",
      "mouser": "595-ADS8505IDWR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T23:01:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ADS8505IDWR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-ADS8505IDWR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Analog input with a ±10-V input range (see Figure 28 of the datasheet)."
      },
      {
        "number": "2",
        "name": "AGND1",
        "type": "power_in",
        "description": "Analog ground, used internally as the ground reference point."
      },
      {
        "number": "3",
        "name": "REF",
        "type": "bidirectional",
        "description": "Reference input/output; requires a 2.2-µF tantalum capacitor to ground."
      },
      {
        "number": "4",
        "name": "CAP",
        "type": "passive",
        "description": "Reference buffer capacitor; requires a 2.2-µF tantalum capacitor to ground."
      },
      {
        "number": "5",
        "name": "AGND2",
        "type": "power_in",
        "description": "Analog ground; ground voltage differences between DGND, AGND1 and AGND2 are limited to ±0.3 V."
      },
      {
        "number": "6",
        "name": "D15 (MSB)",
        "type": "tri_state",
        "description": "Data bit 15, the most significant bit of the conversion result; high-impedance when CS is high or R/C is low."
      },
      {
        "number": "7",
        "name": "D14",
        "type": "tri_state",
        "description": "Data bit 14; high-impedance when CS is high or R/C is low."
      },
      {
        "number": "8",
        "name": "D13",
        "type": "tri_state",
        "description": "Data bit 13; high-impedance when CS is high or R/C is low."
      },
      {
        "number": "9",
        "name": "D12",
        "type": "tri_state",
        "description": "Data bit 12; high-impedance when CS is high or R/C is low."
      },
      {
        "number": "10",
        "name": "D11",
        "type": "tri_state",
        "description": "Data bit 11; high-impedance when CS is high or R/C is low."
      },
      {
        "number": "11",
        "name": "D10",
        "type": "tri_state",
        "description": "Data bit 10; high-impedance when CS is high or R/C is low."
      },
      {
        "number": "12",
        "name": "D9",
        "type": "tri_state",
        "description": "Data bit 9; high-impedance when CS is high or R/C is low."
      },
      {
        "number": "13",
        "name": "D8",
        "type": "tri_state",
        "description": "Data bit 8; high-impedance when CS is high or R/C is low."
      },
      {
        "number": "14",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "15",
        "name": "D7",
        "type": "tri_state",
        "description": "Data bit 7; high-impedance when CS is high or R/C is low."
      },
      {
        "number": "16",
        "name": "D6",
        "type": "tri_state",
        "description": "Data bit 6; high-impedance when CS is high or R/C is low."
      },
      {
        "number": "17",
        "name": "D5",
        "type": "tri_state",
        "description": "Data bit 5; high-impedance when CS is high or R/C is low."
      },
      {
        "number": "18",
        "name": "D4",
        "type": "tri_state",
        "description": "Data bit 4; high-impedance when CS is high or R/C is low."
      },
      {
        "number": "19",
        "name": "D3",
        "type": "tri_state",
        "description": "Data bit 3; high-impedance when CS is high or R/C is low."
      },
      {
        "number": "20",
        "name": "D2",
        "type": "tri_state",
        "description": "Data bit 2; high-impedance when CS is high or R/C is low."
      },
      {
        "number": "21",
        "name": "D1",
        "type": "tri_state",
        "description": "Data bit 1; high-impedance when CS is high or R/C is low."
      },
      {
        "number": "22",
        "name": "D0 (LSB)",
        "type": "tri_state",
        "description": "Data bit 0, the least significant bit of the conversion result; high-impedance when CS is high or R/C is low."
      },
      {
        "number": "23",
        "name": "BYTE",
        "type": "input",
        "description": "Selects the 8 most significant bits (low) or the 8 least significant bits (high) for output."
      },
      {
        "number": "24",
        "name": "R/C",
        "type": "input",
        "description": "With CS low and BUSY high, a falling edge starts a new conversion; with CS low, a rising edge enables the parallel output."
      },
      {
        "number": "25",
        "name": "CS",
        "type": "input",
        "description": "Internally ORed with R/C; with R/C low, a falling edge on CS starts a new conversion."
      },
      {
        "number": "26",
        "name": "BUSY",
        "type": "output",
        "description": "Goes low at the start of a conversion and stays low until the conversion is complete and the digital outputs are updated."
      },
      {
        "number": "27",
        "name": "VANA",
        "type": "power_in",
        "description": "Analog supply input, nominally +5 V; decouple to ground with 0.1-µF ceramic and 10-µF tantalum capacitors."
      },
      {
        "number": "28",
        "name": "VDIG",
        "type": "power_in",
        "description": "Digital supply input, nominally +5 V; connect directly to pin 27 and keep it at or below VANA."
      }
    ],
    "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: Pin numbering is taken from the 'Terminal Functions' table (DB/DW column) on page 5 and cross-checke; Data outputs D0-D15 are typed tri_state because the datasheet describes them as high-impedance when ; REF is typed bidirectional (reference input/output) and CAP is typed passive, based on the datasheet"
        ],
        "pages_sent": 10,
        "cost_usd": 0.0773,
        "at": "2026-10-08T23:00:13"
      },
      "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
      }
    },
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
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        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
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        "role": "eda",
        "up": "Z",
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        "origin": "footprint origin = pad-pattern centre",
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        "zmin_mm": -0.0,
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        "sha256": "82798a4843abbaef4c2a6a2955650d5ca7eb23767c374067747053197c540e39",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  }
}