ADS1293CISQ

{
  "slug": "ads1293cisq",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Analog Front End (AFE), QFN-28-EP(5x5). Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "data acquisition",
    "ads1293cisq",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ads1293cisq.kicad_sym",
    "ads1293cisq.kicad_mod",
    "ads1293cisq.glb",
    "ads1293cisq.step",
    "ads1293cisq.lbr",
    "docs/hero.png",
    "docs/ads1293cisq-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "component": {
    "mpn": "ADS1293CISQ",
    "manufacturer": "Texas Instruments",
    "package": "QFN-28-EP(5x5)",
    "pin_count": 29,
    "category": "Data Acquisition",
    "subcategory": "Analog Front End (AFE)",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ads1293",
    "parts": {
      "symbol": "ads1293cisq.kicad_sym",
      "footprint": "ads1293cisq.kicad_mod",
      "model_3d": "ads1293cisq-etched.glb",
      "model_3d_plain": "ads1293cisq.glb",
      "model_3d_step": "ads1293cisq-etched.step",
      "model_3d_step_plain": "ads1293cisq.step",
      "lbr": "ads1293cisq.lbr"
    },
    "distributor_links": {
      "lcsc": "C181260"
    },
    "pins": [
      {
        "number": "1",
        "name": "IN1",
        "type": "input",
        "description": "Analog input electrode signal with ±400mV differential range and EMI filtering."
      },
      {
        "number": "2",
        "name": "IN2",
        "type": "input",
        "description": "Analog input electrode signal with ±400mV differential range and EMI filtering."
      },
      {
        "number": "3",
        "name": "IN3",
        "type": "input",
        "description": "Analog input electrode signal with ±400mV differential range and EMI filtering."
      },
      {
        "number": "4",
        "name": "IN4",
        "type": "input",
        "description": "Analog input electrode signal with ±400mV differential range and EMI filtering."
      },
      {
        "number": "5",
        "name": "IN5",
        "type": "input",
        "description": "Analog input electrode signal with ±400mV differential range and EMI filtering."
      },
      {
        "number": "6",
        "name": "IN6",
        "type": "input",
        "description": "Analog input electrode signal with ±400mV differential range and EMI filtering."
      },
      {
        "number": "7",
        "name": "WCT",
        "type": "output",
        "description": "Wilson Central Terminal reference output or analog pace channel output."
      },
      {
        "number": "8",
        "name": "CMOUT",
        "type": "output",
        "description": "Common-mode detector output averaging input electrode voltages."
      },
      {
        "number": "9",
        "name": "RLDOUT",
        "type": "output",
        "description": "Right-leg drive amplifier output for patient electrode biasing."
      },
      {
        "number": "10",
        "name": "RLDINV",
        "type": "input",
        "description": "Right-leg drive amplifier inverting input."
      },
      {
        "number": "11",
        "name": "RLDIN",
        "type": "bidirectional",
        "description": "Right-leg drive amplifier non-inverting input or analog pace channel output."
      },
      {
        "number": "12",
        "name": "RLDREF",
        "type": "output",
        "description": "Internal reference output generating VDD/2.2 for common-mode bias."
      },
      {
        "number": "13",
        "name": "SYNCB",
        "type": "bidirectional",
        "description": "Synchronization signal input or output for multi-chip synchronization."
      },
      {
        "number": "14",
        "name": "VSSIO",
        "type": "power_in",
        "description": "Digital I/O supply ground connection."
      },
      {
        "number": "15",
        "name": "ALARMB",
        "type": "output",
        "description": "Active-low open-drain output indicating system alarm conditions."
      },
      {
        "number": "16",
        "name": "CSB",
        "type": "input",
        "description": "Active-low chip select for SPI communication."
      },
      {
        "number": "17",
        "name": "SCLK",
        "type": "input",
        "description": "Serial clock input for SPI with maximum frequency of 20 MHz."
      },
      {
        "number": "18",
        "name": "SDI",
        "type": "input",
        "description": "Serial data input sampled on rising edge of SCLK."
      },
      {
        "number": "19",
        "name": "SDO",
        "type": "output",
        "description": "Serial data output driven on falling edge of SCLK."
      },
      {
        "number": "20",
        "name": "DRDYB",
        "type": "output",
        "description": "Active-low data ready output asserted when new conversion data available."
      },
      {
        "number": "21",
        "name": "CLK",
        "type": "bidirectional",
        "description": "Bi-directional 409.6 kHz clock output or external clock input."
      },
      {
        "number": "22",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Digital I/O supply voltage, 1.65V to 3.6V or up to VDD if VDD ≤ 3.6V."
      },
      {
        "number": "23",
        "name": "XTAL1",
        "type": "input",
        "description": "External crystal for clock oscillator connection with 20pF load capacitor, nominal frequency 4.096 MHz."
      },
      {
        "number": "24",
        "name": "XTAL2",
        "type": "input",
        "description": "External crystal for clock oscillator connection with 20pF load capacitor, nominal frequency 4.096 MHz."
      },
      {
        "number": "25",
        "name": "RSTB",
        "type": "input",
        "description": "Active-low reset input."
      },
      {
        "number": "26",
        "name": "CVREF",
        "type": "bidirectional",
        "description": "Internal 2.4V reference output or external reference input, requires 1µF low-ESR bypass capacitor."
      },
      {
        "number": "27",
        "name": "VSS",
        "type": "power_in",
        "description": "Analog supply ground connection."
      },
      {
        "number": "28",
        "name": "VDD",
        "type": "power_in",
        "description": "Analog supply voltage input, 2.7V to 5.5V range."
      },
      {
        "number": "29",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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-4-6",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: XTAL1 and XTAL2 are both listed as 'Digital Input' type in the pin functions table, but typical crys; The pin functions table lists 'DAP' (exposed thermal pad) marked as 'No connect' without a formal pi",
          "exposed pad 29 added from the footprint",
          "4/29 pins cited to the wrong page (name found elsewhere): ['2:IN2@p3', '3:IN3@p3', '4:IN4@p3', '5:IN5@p3']"
        ],
        "pages_sent": 78,
        "cost_usd": 0.756,
        "at": "2026-09-18T02:33:02"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ads1293",
        "pages": 78,
        "sha256": "d59fe1b658d0e77f",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 29,
        "described": 29,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ads1293cisq.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "e9d6d740f505b03e5aa0ac826330f9e269344b84656d051f50eb07ac162749eb",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ads1293cisq-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
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        "sha256": "63ac3278b4324dd8249003f2f82efa2dffbf8bf3c3f92d352e2d95551f4418e7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}