• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 46 subscribers
  • Views 62 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

ADS9815: Sampling Rate

ttd
Mastermind 8140 points
Part Number: ADS9815

Tool/software:

Dear Technical Support Team,

My target sampling rate is 250kSPS with simultaneous.

According to the datasheet of ADS9815, 1MSPS/channel.

If ADC's max sampling rate is 1MSPS, I guess that 250kSPS/ch with sequential 4:1 mux switching and it behaves like 250ksps simultaneouslly.

Or Even when sequential 4:1 mux switching, does ADS9815 work 1MSPS/channel?

Best Regards,

ttd

  • +1
    TI__Expert 6841 points

    Hi ttd,

    Thanks for your question! 

    ADS9815 samples two channels simultaneously at a time. Channels 1 and 8 are sampled together, each at 1MSPS. Then, channels 2 and 7 are sampled together. Then, channel 3 and 6 and then, channels 4 and 5. All 8 channels will sample at 1MSPS. Please let me know if you have any further questions or need any assistance with a schematic or layout review.

    Best regards,

    Samiha