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MSP430F5529: ADC configure issue

Cherry Zhou
Mastermind 22235 points

Part Number: MSP430F5529

Hi team,

The data sheet shows that the board's built-in ADC12 maximum sampling rate is 200 k, so the customer would like to know how to configure it to reach 200k.

Could you help check this case? Thank you!

Best Regards,

Cherry

  • 0
    TI__Mastermind 24975 points

    Hi Cherry 

    One time ADC conversion time is related with conversion clock speed, Conversion time & cycle and Sampling time & cycle.

    Suppose conversion clock 4MHz, 12-bit mode, Conversion time is 13 ADC clock, sampling time can be set to 4 ADC clock.

    In this case, One time ADC conversion time = (13+4)/4 = 4.25uS. the sampling rate is ~235ksps which is higher than 200ksps.

    Thanks!

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