AD5342, question on reference input

Hi,

 

Please let me ask what is impedance value of reference input(VrefA and VrefB) of AD5342, when it is not powered ?

 

We are now studying one issue of our board, and it seems reference input is powered before the part is powered. To understand what is occured, we would like to know the value of impedance.  BUF pin is connected to +3.3V, but it should be 0V by connected to GND when it is not powered.

 

Thank you very much for your support,

 

Best Regards,

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    •  Analog Employees 
    on Aug 2, 2018 2:38 PM
    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    EZ Admin
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  • 0
    •  Analog Employees 
    on Aug 2, 2018 2:38 PM
    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    EZ Admin
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