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ADS8881: How to achieve the 1M Sample Rate:

Chen Alex1
Genius 3665 points
Part Number: ADS8881

Tool/software:

HI Sir

I use the fpga to reading the ADS8881, only can achieve 800k, Target is 1M

Could you provide the  figure chart between ADC & FPGA Public board, and run 1M speed

thanks

  • 0
    TI__Expert 8615 points

    Hi Alex,

    Thanks for your question. While I don't have a chart, I have this verilog example code for another device. The "ADS98xx_spi_configuration_interface.sv" file may be a good example of a SPI block. I am not sure what is limiting the speed in your case. If you increase the frequency of CONVST and SCLK, it should allow 1MSPS throughput.

    Best regards,

    Samiha