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Forum Post: RE: ADS131E08 sampling at 2400 SPS

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Hi Greg,

Looking at the datasheet it looks difficult to sample at 1.6kSPS with START and RDATA command as.

  • STANDBY->WAKEUP time is 125uS
  • SETTLING time at Fclk = 2.048MHz is 566uS.
  • The T at 1.6kSPS becomes 625uS.

How do I calculate the fclk based on desired sampling rate?(By simple math the fclk for 1.6kSPS I calculated 2.048/5 = .4096MHz which falls below 0.7MHz)

Other way I can think of is device sampling rate is 8kSPS and desired is 1.6kSPS which is /5. Can I read every 5th sample just by using CS signal?


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