SIG5530A-ITSP20-RL

{
  "slug": "sig5530a-itsp20-rl",
  "version": "0.1.0",
  "type": "component",
  "description": "Signal Micro Analog To Digital Converters (ADC), TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "data acquisition",
    "sig5530a-itsp20-rl",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sig5530a-itsp20-rl.kicad_sym",
    "sig5530a-itsp20-rl.kicad_mod",
    "sig5530a-itsp20-rl.glb",
    "sig5530a-itsp20-rl.step",
    "sig5530a-itsp20-rl.lbr",
    "docs/hero.png",
    "docs/sig5530a-itsp20-rl-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sig5530a-itsp20-rl-hero.glb",
    "sig5530a-itsp20-rl-hero.overlay.json",
    "sig5530a-itsp20-rl-etched.glb"
  ],
  "component": {
    "mpn": "SIG5530A-ITSP20-RL",
    "manufacturer": "Signal Micro",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/e86ac9b1c690dcd510643f31d758d40e.pdf",
    "parts": {
      "symbol": "sig5530a-itsp20-rl.kicad_sym",
      "footprint": "sig5530a-itsp20-rl.kicad_mod",
      "model_3d": "sig5530a-itsp20-rl-hero.glb",
      "model_3d_plain": "sig5530a-itsp20-rl-etched.glb",
      "model_3d_step": "sig5530a-itsp20-rl-etched.step",
      "model_3d_step_plain": "sig5530a-itsp20-rl.step",
      "lbr": "sig5530a-itsp20-rl.lbr"
    },
    "distributor_links": {
      "lcsc": "C41367343"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T23:19:06Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 516 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "AIN1+",
        "type": "input",
        "description": "Positive analog input channel 1."
      },
      {
        "number": "2",
        "name": "AIN1-",
        "type": "input",
        "description": "Negative analog input channel 1."
      },
      {
        "number": "3",
        "name": "C1",
        "type": "output",
        "description": "Amplifier analog output; connect a C0G capacitor of 4.7~22nF between C1 and C2."
      },
      {
        "number": "4",
        "name": "C2",
        "type": "output",
        "description": "Amplifier analog output; connect a C0G capacitor of 4.7~22nF between C1 and C2."
      },
      {
        "number": "5",
        "name": "AVDD",
        "type": "power_in",
        "description": "Positive analog power supply, 4.75V to 5.25V relative to AVSS."
      },
      {
        "number": "6",
        "name": "AVSS",
        "type": "power_in",
        "description": "Negative analog power supply (VAVSS specified from -2.625V to 0V)."
      },
      {
        "number": "7",
        "name": "A0/PDSW",
        "type": "output",
        "description": "Analog logic output or bridge power-down switch."
      },
      {
        "number": "8",
        "name": "A1",
        "type": "output",
        "description": "Analog logic output."
      },
      {
        "number": "9",
        "name": "OSC2",
        "type": "bidirectional",
        "description": "Master clock input or crystal connection."
      },
      {
        "number": "10",
        "name": "OSC1",
        "type": "input",
        "description": "Crystal connection."
      },
      {
        "number": "11",
        "name": "SCLK",
        "type": "input",
        "description": "Serial data clock."
      },
      {
        "number": "12",
        "name": "DOUT/DRDYn",
        "type": "output",
        "description": "Serial data output and data ready indicator."
      },
      {
        "number": "13",
        "name": "DIN",
        "type": "input",
        "description": "Serial data input."
      },
      {
        "number": "14",
        "name": "CSn",
        "type": "input",
        "description": "Serial chip select, active low."
      },
      {
        "number": "15",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital power supply, 2.7V to 5.25V, independent of AVDD."
      },
      {
        "number": "16",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground reference point."
      },
      {
        "number": "17",
        "name": "REF-",
        "type": "input",
        "description": "Negative reference input."
      },
      {
        "number": "18",
        "name": "REF+",
        "type": "input",
        "description": "Positive reference input."
      },
      {
        "number": "19",
        "name": "AIN2-",
        "type": "input",
        "description": "Negative analog input channel 2."
      },
      {
        "number": "20",
        "name": "AIN2+",
        "type": "input",
        "description": "Positive analog input channel 2."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Page 1 diagram uses different names (VA+, VA-, VD+, SDI, SDO) than the page 2 pin table (AVDD, AVSS,; Pin types for C1/C2 (listed as Analog Output but connect to an external capacitor) and OSC1/OSC2 (cr",
          "1/20 pin names appear NOWHERE in the datasheet text: ['9:OSC2@p2']"
        ],
        "pages_sent": 14,
        "cost_usd": 0.1275,
        "at": "2026-10-22T23:18:53"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/e86ac9b1c690dcd510643f31d758d40e.pdf",
        "pages": 14,
        "sha256": "21b27c3ec576f399",
        "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": "sig5530a-itsp20-rl.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sig5530a-itsp20-rl-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "eeef6d5245dcf19da1d4d3a4011de2f04414d471218fbfde086d5277d8545cdb",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}