CS1238-SOP14

{
  "schema_version": 1,
  "type": "component",
  "slug": "cs1238-sop14",
  "title": "CS1238-SOP14",
  "brief": "CHIPSEA Analog To Digital Converters (ADC), SOP-14. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "data acquisition",
    "cs1238-sop14"
  ],
  "component": {
    "mpn": "CS1238-SOP14",
    "manufacturer": "CHIPSEA",
    "package": "SOP-14",
    "pin_count": 14,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586176486470520832",
    "parts": {
      "symbol": "cs1238-sop14.kicad_sym",
      "footprint": "cs1238-sop14.kicad_mod",
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      "model_3d_plain": "cs1238-sop14.glb",
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      "model_3d_step_plain": "cs1238-sop14.step",
      "lbr": "cs1238-sop14.lbr"
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply input. Operates from 3.0-3.6 V or 4.5-5.5 V; absolute max 6 V. Also serves as the analog and digital supply for the ADC core."
      },
      {
        "number": "2",
        "name": "REFOUT",
        "type": "power_out",
        "description": "Internal reference voltage output (typ. = VDD). Also acts as the excitation source output for bridge/temperature sensors."
      },
      {
        "number": "3",
        "name": "REFIN",
        "type": "input",
        "description": "Reference voltage input for the ADC. Accepts 1.5 V to VDD+0.1 V. When using an external reference, the internal reference must first be disabled via the refo_off register bit."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Chip ground reference. Tie to system ground."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. Leave floating or tie to ground."
      },
      {
        "number": "6",
        "name": "AINP1",
        "type": "input",
        "description": "Channel 1 positive differential analog input. Full-scale differential input is ±0.5·VREF/PGA. Common-mode range: AGND-0.1 to AVDD+0.1 (PGA=1/2), AGND+0.75 to AVDD-0.75 (PGA=64/128)."
      },
      {
        "number": "7",
        "name": "AINN1",
        "type": "input",
        "description": "Channel 1 negative differential analog input. Paired with AINP1."
      },
      {
        "number": "8",
        "name": "AINP2",
        "type": "input",
        "description": "Channel 2 positive differential analog input. Selected via the ch_sel[1:0] register bits."
      },
      {
        "number": "9",
        "name": "AINN2",
        "type": "input",
        "description": "Channel 2 negative differential analog input. Paired with AINP2."
      },
      {
        "number": "10",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. Leave floating or tie to ground."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "Chip ground reference (second GND pin). Tie to system ground."
      },
      {
        "number": "12",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. Leave floating or tie to ground."
      },
      {
        "number": "13",
        "name": "SCLK",
        "type": "input",
        "description": "Serial clock input from the MCU. Max frequency 1.1 MHz. Holding SCLK high for >100 µs puts the device into power-down mode; returning SCLK low resumes normal operation with prior register state preserved."
      },
      {
        "number": "14",
        "name": "DRDY/DOUT",
        "type": "bidirectional",
        "description": "Muxed data-ready / serial data pin (active-low DRDY, DOUT for data + control). Goes low to signal new ADC data is available, then clocks out 24-bit conversion data and accepts configuration writes on SCLK edges."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586176486470520832",
        "pages": 20,
        "sha256": "db86629558b82515",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "role": "plain",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          8.7,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cs1238-sop14-etched.step",
        "role": "eda",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0,
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        "footprint_binding": "identity",
        "sha256": "020643587206bd4f875d71d0942f862d08c1309249d7232a4ece638baa04f441",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "CHIPSEA",
      "Package": "SOP-14",
      "Category": "Data Acquisition",
      "Pins": "14"
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
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  "discovery_pitch": "CS1238-SOP14 (CHIPSEA) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
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  "files": [
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    "README.md",
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    "cs1238-sop14.step",
    "cs1238-sop14.lbr",
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    "docs/cs1238-sop14-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
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  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T19:33:02.973Z"
}