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How many ADS8413 connect in cascade mode?

Other Parts Discussed in Thread: ADS8413

Hi..

How many ADS8413 connect in cascade mode?

Please let me know...

Regards...

  • It is dependent upon the frequency of the serial clock and by extension the limits of your controller. It is roughly described by:

    TIMING DIAGRAMS FOR DAISY CHAIN OPERATION
    The conversion speed for n devices in the chain must be selected such that:
    1/conversion speed > read startup delay + n*(data frame duration) + td16
    Read startup delay = 10 ns + (td19 - td4) + td12 + 2/fCLK
    Data frame duration = 16/fCLK

    This just says that you have to read out all of the data from all of the devices serially during the time for another conversion to be completed.