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ADC128S102QML-SP: and DAC121S101QML-SP behaviour on SEU on SCLK

Klaus Schleisiek
Prodigy 10 points
Part Number: ADC128S102QML-SP
Other Parts Discussed in Thread: DAC121S101QML-SP,

We will be using both the ADC128S102QML-SP and the DAC121S101QML-SP in a LEO satellite.

Due to SEUs on the SCLK line there may be short spikes, which will violate the maximum clock frequency spec.


How will the ADC and the DAC react in such a situation?

Will the current transaction just lead to an invalid result or may the circuits actually "hang up" in some form or other?

Regards,

Klaus

  • 0
    TI__Genius 17125 points
    Hello Klaus,

    A glitch on the clock pulse going to these products should not cause the products to hang up or create a need to reset the parts.
    It could impact the current conversion cycle when the glitch happens, resulting in an output error, setup error or completely disrupt that conversion cycle. The next conversion cycle should occur without a problem.

    Have you seen the SEU test reports for these parts? They are posted at ti.com/radiaion. Right now we have having problems with the site and the links are broken. If you are having problems getting ot the reports, let me know.