CS1259B-SOP16

{
  "slug": "cs1259b-sop16",
  "version": "0.1.0",
  "type": "component",
  "description": "CHIPSEA Analog To Digital Converters (ADC), SOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "data acquisition",
    "cs1259b-sop16",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
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    "cs1259b-sop16.step",
    "cs1259b-sop16.lbr",
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    "docs/cs1259b-sop16-datasheet.pdf",
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  "component": {
    "mpn": "CS1259B-SOP16",
    "manufacturer": "CHIPSEA",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588945283023167488",
    "parts": {
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      "footprint": "cs1259b-sop16.kicad_mod",
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      "model_3d_plain": "cs1259b-sop16-etched.glb",
      "model_3d_step": "cs1259b-sop16-etched.step",
      "model_3d_step_plain": "cs1259b-sop16.step",
      "lbr": "cs1259b-sop16.lbr"
    },
    "distributor_links": {
      "lcsc": "C2833379"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T15:26:04Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "REFN",
        "type": "input",
        "description": "Negative reference voltage input; for single-ended measurements it should be connected to GND."
      },
      {
        "number": "2",
        "name": "AIN0",
        "type": "input",
        "description": "Analog signal input channel 0, usable single-ended against REFN or combined with another AINx into a differential pair."
      },
      {
        "number": "3",
        "name": "AIN1",
        "type": "input",
        "description": "Analog signal input channel 1, usable single-ended against REFN or combined with another AINx into a differential pair."
      },
      {
        "number": "4",
        "name": "CIP",
        "type": "bidirectional",
        "description": "Positive terminal of the analog signal filter port, used to connect an external RC filter when EXFIL_EN is enabled."
      },
      {
        "number": "5",
        "name": "CIN",
        "type": "bidirectional",
        "description": "Negative terminal of the analog signal filter port, used to connect an external RC filter when EXFIL_EN is enabled."
      },
      {
        "number": "6",
        "name": "AIN4",
        "type": "input",
        "description": "Analog signal input channel 4, usable single-ended against REFN or combined with another AINx into a differential pair."
      },
      {
        "number": "7",
        "name": "AIN3",
        "type": "input",
        "description": "Analog signal input channel 3, usable single-ended against REFN or combined with another AINx into a differential pair."
      },
      {
        "number": "8",
        "name": "AIN2",
        "type": "input",
        "description": "Analog signal input channel 2, usable single-ended against REFN or combined with another AINx into a differential pair."
      },
      {
        "number": "9",
        "name": "CS",
        "type": "input",
        "description": "Serial interface chip-select, active low; the pin is internally floating so an external pull-up is recommended."
      },
      {
        "number": "10",
        "name": "SCLK",
        "type": "input",
        "description": "Serial communication clock input; SDA data is shifted out on the rising edge and sampled on the falling edge of SCLK."
      },
      {
        "number": "11",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Serial data input/output; when CS is high it outputs DRDY to flag conversion data ready, and when CS is low it carries serial communication data."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "13",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply voltage, 2.4 V to 3.6 V (3.0 V typical) per the electrical characteristics; absolute maximum is -0.3 V to 6 V."
      },
      {
        "number": "14",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "15",
        "name": "VS",
        "type": "power_in",
        "description": "Internal LDO output that powers the external bridge sensor and internal ADC, selectable via LDOS[1:0] and rated for a load current up to 10 mA."
      },
      {
        "number": "16",
        "name": "REFP",
        "type": "input",
        "description": "Positive reference voltage input; the ADC reference is REFP minus REFN, with REFP specified from VS/2 to VDD+0.1 V."
      }
    ],
    "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: LDO output voltage options conflict within the datasheet: section 3.5 lists 2.4/2.6/2.8/3.0 V, while; The datasheet text writes CS with an overline (active low) that did not survive text extraction; act; Two GND pins are listed in the SOP16 pin table; both are ground and are reported as printed."
        ],
        "pages_sent": 27,
        "cost_usd": 0.1112,
        "at": "2026-10-18T15:23:57"
      },
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        "pages": 27,
        "sha256": "a9156f9ac81c75f4",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "zmin_mm": -0.0,
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}