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AD5270 Ground issue; Vss GND difference.

Thread Summary

The user is experiencing ground fluctuations when using an AD5270 with a boost converter, likely due to a shared ground. The solution is to use separate ground planes for the converter and the AD5270, connecting the AD5270's DGND to the logic ground and VSS to the analog ground (AGND).
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Category: Hardware
Product Number: AD5271

Hello,

I am using AD5270 with boost converter for generating high voltages. But when the boost converter start, there is a problem with feedback section. In my opinion,as the high voltage circuit GND and AD5271 GND is the same, the problem occurs. In oscilloscope, I saw the fluctuations in gorund. But how should I connect the grounds, is there a difference with VSS and logic GND of AD5271? 

Thank you in advance.