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What's the phase shift on the high bandwidth multiplying DACs and how is changing with code

Question asked by xktistis on Sep 28, 2016
Latest reply on Oct 2, 2016 by msamera

I'm planning to use a multiplying DAC e.g. AD5443 configured to provide a unipolar output and attenuate a Vref of 1MHz. Looking at the datasheet, the device bandwidth of 12MHz suggests that will be a phase shift between Vref and the output. I would like the output signal phase to be fixed and not change with code (amplitude) changes. Do you think I could achieve a phase stability better than 1 degree? If not is there a way to improve it or an alternative device to use?

 

Thanks,

Regards,

Xktistis

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