Cascading ADL5611, power supply issues

I want to cascade 3 RF gain stages using ADL5611. I power each ADL5611 directly from a laboratory power supply of 5V. Individually each IC draws a current of 85-90mA. But when I power up two of them together the current reaches 400 mA(170mA expected). I have used a microstrip design on Arlon AD600 substrate and used a layout similar to the evaluation board. This combination occasionally works but mostly gives unexpected results. Can you kindly help resolve this issue?

Parents
  • 0
    •  Analog Employees 
    on Aug 2, 2018 4:02 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
Reply
  • 0
    •  Analog Employees 
    on Aug 2, 2018 4:02 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
Children
No Data