main
Ray Set visibility: public 17feb1f 9d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "cs1237-so",
  "title": "CS1237-SO",
  "brief": "CHIPSEA Analog To Digital Converters (ADC), SOP-8-150mil. 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",
    "cs1237-so",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CS1237-SO",
    "manufacturer": "CHIPSEA",
    "package": "SOP-8-150mil",
    "pin_count": 8,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904082058199040",
    "parts": {
      "symbol": "cs1237-so.kicad_sym",
      "footprint": "cs1237-so.kicad_mod",
      "model_3d": "cs1237-so-hero.glb",
      "model_3d_plain": "cs1237-so-etched.glb",
      "model_3d_step": "cs1237-so-etched.step",
      "model_3d_step_plain": "cs1237-so.step",
      "lbr": "cs1237-so.lbr"
    },
    "distributor_links": {
      "lcsc": "C7464028"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T03:22:01Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "REFIN",
        "type": "input",
        "description": "External reference input, which must be used with the internal reference turned off (REFO_OFF=1) and must be between 1.5 V and VDD+0.1 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Chip ground (analog and digital ground reference for the device)."
      },
      {
        "number": "3",
        "name": "AINN",
        "type": "input",
        "description": "Negative differential analog input; the differential full-scale input is ±0.5VREF/PGA (AINP minus AINN)."
      },
      {
        "number": "4",
        "name": "AINP",
        "type": "input",
        "description": "Positive differential analog input; with PGA=64 or 128 the input common-mode range is GND+0.75 V to VDD-0.75 V."
      },
      {
        "number": "5",
        "name": "SCLK",
        "type": "input",
        "description": "SPI serial clock input, maximum 1.1 MHz, which must be clean with rise and fall times under 50 ns; holding it high for more than 100 µs enters power-down mode."
      },
      {
        "number": "6",
        "name": "DRDY/DOUT",
        "type": "bidirectional",
        "description": "SPI data-ready flag, data output (MSB first), and register write/read data pin; it is driven low when new conversion data is ready."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply, rated 4.5 V to 5.5 V for 5 V operation or 3 V to 3.6 V for 3.3 V operation, with an absolute maximum of 6 V."
      },
      {
        "number": "8",
        "name": "REFOUT",
        "type": "output",
        "description": "Internal reference output that also serves as the sensor excitation output, equal to VDD; it can be switched off via the REFO_OFF register bit."
      }
    ],
    "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: The datasheet only states the package as 'SOP8' (Chapter 3 and Figure 11 dimension drawing). It does; The datasheet is in Chinese; the pin descriptions above are translated into English and condensed fr"
        ],
        "pages_sent": 19,
        "cost_usd": 0.0553,
        "at": "2026-10-17T03:21:46"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904082058199040",
        "pages": 19,
        "sha256": "3c682b95f2d9f96e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cs1237-so.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cs1237-so-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,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "91d1f4c39aca79f7cb36774c9535f8be521fe9debc625099a0703b5de926114c",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "CHIPSEA",
      "Package": "SOP-8-150mil",
      "Category": "Data Acquisition",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "3c682b95f2d9f96e57fc1f3a8498a9a12df76e4bcb2fcbb83d75c8de64ed61a3",
      "rows": [
        {
          "name": "电源电压",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "电源瞬间电流",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "电源恒定电流",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "节温",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "工作温度",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "储存温度",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -60,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "芯片管脚焊接温度",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 240,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "输入高电平漏电流 IIH",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "VI=DVDD",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "输入低电平漏电流 IIL",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "μA",
          "min": -10,
          "typ": null,
          "max": null,
          "conditions": "VI=DGND",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "串口时钟SCLK工作频率",
          "symbol": "",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": null,
          "max": 1.1,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "AD速率",
          "symbol": "",
          "kind": "electrical",
          "unit": "Hz",
          "min": 10,
          "typ": null,
          "max": 1280,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "积分线性度",
          "symbol": "",
          "kind": "electrical",
          "unit": "ppm",
          "min": -15,
          "typ": null,
          "max": 15,
          "conditions": "PGA=128",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "失调误差",
          "symbol": "",
          "kind": "electrical",
          "unit": "μV",
          "min": -1.4,
          "typ": null,
          "max": 1.4,
          "conditions": "PGA=128",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "增益误差",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "PGA=128",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "参考电压输入 REFIN",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "温度测量误差",
          "symbol": "TempError",
          "kind": "electrical",
          "unit": "℃",
          "min": -3,
          "typ": null,
          "max": 3,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "电源电压 (5V系统)",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": 5,
          "max": 5.5,
          "conditions": "VDD=5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "电源电压 (3.3V系统)",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "VDD=3.3V",
          "source_page": 8,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cs1237-so"
  ],
  "discovery_pitch": "CS1237-SO (CHIPSEA) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "cs1237-so.kicad_sym",
    "cs1237-so.kicad_mod",
    "cs1237-so.glb",
    "cs1237-so.step",
    "cs1237-so.lbr",
    "docs/hero.png",
    "docs/cs1237-so-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cs1237-so-hero.glb",
    "cs1237-so-hero.overlay.json",
    "cs1237-so-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}