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Product description

Product model

Design & development

  • CMS1237

    The ADC data output rate of CMS1237 in normal mode can be selected as: 10Hz, 40Hz, 640Hz, the default is 10Hz, and the setup time only needs 1 conversion cycle. The MCU can communicate with the CMS1237 through the 2-wire SPI interface SCLK, DRDYB/DOUT, and configure it, such as channel selection, PGA selection, and output rate selection.


    Datasheet >

    CMS1237 is a high-precision, low-power analog-to-digital conversion chip. Support one or two differential input channels, built-in temperature sensor and high-precision oscillator. The PGA gain of CMS1237 can be selected as: 1, 2, 4, 8, 16, 32, 64, 128, 256.


    Features

    > High-precision low-power analog-to-digital conversion module

    > Electric ADC rate optional

    > Can communicate with the master through SPI

    > Built-in crystal oscillator

    > With temperature sensor

    > With Power down function

    > SPI fastest speed 1.1MHz

    > ADC in-band short switch, system chopper switch

    > Package type: SOP8


  • Product model

    Part Number Package Temp Voltage SPI PGA OSC Resolution(Bits) Sigma-Delta ADC Effective Resolution (Bits) Built-in LDO
    CMS1237 SOP8 -40~85 2.7~4.2 2线 1 INTRC 22 10/40/640 19 N

  • Design & development

    Documentation
    Name Version Describe Download
    CMS1237 User Manual V1.02

    CMS1237 chip modules, chip registers, clocks, storage, etc.

    Download >

    More

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