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AD9957 output level calibration (Auxiliary DAC) required?

Question asked by Laudio on Feb 3, 2018
Latest reply on Mar 1, 2018 by KennyG

We are using the AD9957 as a digital upconverter / DAC.

We would like to control the output level accurately, therefore we're using the AD9957 Aux. DAC functionality to control the output current from the main DAC.

 

I cannot find any specifications on the accuracy of the Auxiliary DAC, so I was wondering what accuracy is guaranteed, so that we can determine whether we should try and calibrate the output level versus each Auxiliary DAC Control Register step (0..255)

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