ADPD4100 Peak Sampling Rate

Hello ADI support team! Quick question for you -

I'm trying to get a ballpark for how many samples per second this AFE can achieve across all channels, though I know the slot timing configuration registers depend on the number of repeats, pre-width, offset, etc. In the ADPD4100 datasheet I see that the peak sampling rate is listed as 9kHz when using the internal 1Mhz low-freq oscillator (pg 1). 

Where does the 9kHz number come from? Is this 9kHz times 12 timeslots = 108k samples / sec?

Thanks very much for your support!

Best,

Tyler

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  • +1
    •  Analog Employees 
    on Jul 16, 2021 7:39 PM

    Hi Tyler,

    The 9 kHz sampling rate is based on our test of the ADPD4100 part. Technically, you can get 108k sps if the time for each slot is very minimal. 

    The ADPD4100 sampling rate can further be increased by turning off the sleep cycle. 

    We are in the process to implement firmware for the impulse response mode which allows to acquire limited number of samples but at 500k sampling rate.

    Regards,

    Glen B.

Reply
  • +1
    •  Analog Employees 
    on Jul 16, 2021 7:39 PM

    Hi Tyler,

    The 9 kHz sampling rate is based on our test of the ADPD4100 part. Technically, you can get 108k sps if the time for each slot is very minimal. 

    The ADPD4100 sampling rate can further be increased by turning off the sleep cycle. 

    We are in the process to implement firmware for the impulse response mode which allows to acquire limited number of samples but at 500k sampling rate.

    Regards,

    Glen B.

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