ADS1255IDBR

{
  "schema_version": 1,
  "type": "component",
  "slug": "ads1255idbr",
  "title": "ADS1255IDBR",
  "brief": "Texas Instruments Analog To Digital Converters (ADC), SSOP-20-208mil. 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",
    "ads1255idbr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ADS1255IDBR",
    "manufacturer": "Texas Instruments",
    "package": "SSOP-20-208mil",
    "pin_count": 20,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ads1255",
    "parts": {
      "symbol": "ads1255idbr.kicad_sym",
      "footprint": "ads1255idbr.kicad_mod",
      "model_3d": "ads1255idbr-etched.glb",
      "model_3d_plain": "ads1255idbr.glb",
      "model_3d_step": "ads1255idbr-etched.step",
      "model_3d_step_plain": "ads1255idbr.step",
      "lbr": "ads1255idbr.lbr"
    },
    "distributor_links": {
      "lcsc": "C29001"
    },
    "pins": [
      {
        "number": "1",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power supply, 4.75 to 5.25 V"
      },
      {
        "number": "2",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground, 0 V reference"
      },
      {
        "number": "3",
        "name": "VREFN",
        "type": "input",
        "description": "Negative reference input, 0.5 to 2.5 V below VREFP"
      },
      {
        "number": "4",
        "name": "VREFP",
        "type": "input",
        "description": "Positive reference input, 0.5 to 2.5 V above VREFN"
      },
      {
        "number": "5",
        "name": "AINCOM",
        "type": "input",
        "description": "Analog input common for single-ended measurements"
      },
      {
        "number": "6",
        "name": "AIN0",
        "type": "input",
        "description": "Differential or single-ended analog input 0"
      },
      {
        "number": "7",
        "name": "AIN1",
        "type": "input",
        "description": "Differential or single-ended analog input 1"
      },
      {
        "number": "8",
        "name": "SYNC/PDWN",
        "type": "input",
        "description": "Synchronization/power-down input, active low Schmitt-trigger"
      },
      {
        "number": "9",
        "name": "RESET",
        "type": "input",
        "description": "Reset input, active low Schmitt-trigger"
      },
      {
        "number": "10",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital power supply, 1.8 to 3.6 V"
      },
      {
        "number": "11",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground, 0 V reference"
      },
      {
        "number": "12",
        "name": "XTAL2",
        "type": "passive",
        "description": "Crystal oscillator connection, leave floating if external clock input is used"
      },
      {
        "number": "13",
        "name": "XTAL1/CLKIN",
        "type": "input",
        "description": "Crystal oscillator or external clock input, 2 to 10 MHz"
      },
      {
        "number": "14",
        "name": "CS",
        "type": "input",
        "description": "Chip select input, active low Schmitt-trigger"
      },
      {
        "number": "15",
        "name": "DRDY",
        "type": "output",
        "description": "Data ready output, active low indicating new conversion data available"
      },
      {
        "number": "16",
        "name": "DOUT",
        "type": "tri_state",
        "description": "Serial data output, tri-state high impedance when CS is high"
      },
      {
        "number": "17",
        "name": "DIN",
        "type": "input",
        "description": "Serial data input, Schmitt-trigger"
      },
      {
        "number": "18",
        "name": "SCLK",
        "type": "input",
        "description": "Serial clock input, Schmitt-trigger"
      },
      {
        "number": "19",
        "name": "D0/CLKOUT",
        "type": "bidirectional",
        "description": "Digital I/O 0 or clock output, configurable as input or output"
      },
      {
        "number": "20",
        "name": "D1",
        "type": "bidirectional",
        "description": "Digital I/O 1, configurable as input or output"
      }
    ],
    "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": 49,
        "cost_usd": 0.6105,
        "at": "2026-09-23T09:35:03"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ads1255",
        "pages": 49,
        "sha256": "9da3323db162b593",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ads1255idbr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          7.2,
          2.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9a01a276d0b4d9561efd58f2fcee56f52c1b6ab464ea7a0380cab4e87a924e6",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ads1255idbr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          7.2,
          2.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "730a9d88db070bb6403443a662cb9e9a7d6cd769bc5a4d046d4087de900b6290",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SSOP-20-208mil",
      "Category": "Data Acquisition",
      "Pins": "20"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ads1255idbr"
  ],
  "discovery_pitch": "ADS1255IDBR (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",
    "ads1255idbr.kicad_sym",
    "ads1255idbr.kicad_mod",
    "ads1255idbr.glb",
    "ads1255idbr.step",
    "ads1255idbr.lbr",
    "docs/hero.png",
    "docs/ads1255idbr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T15:58:18.606Z"
}