AD5144 doesn't load configuration on power-up

I am observing an AD5144 (actually 6 devices tested) not loading its configuration on power-up. On consecutive power-ups the configuration was sometimes loaded sometimes not.

The screenshot of the oscilloscope shows the measured supply voltages during power-up.

 

AD5144BCPZ100-RL7

VDD = VLOGIC = RESET = DIS = WPN = LRDAC = 2.5 V

ADDR0 = ADDR1 = 0V

VSS = EXP = -2.5 V

SCL = SDA = floating

 

Has anyone of you an idea on how to solve this?

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    •  Analog Employees 
    on Aug 2, 2018 2:39 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 2:39 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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