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ADIS16485 drawing excessive current

Question asked by win64b on Apr 22, 2014
Latest reply on Apr 22, 2014 by NevadaMark

I have a ADIS16485 mounted on a customized interface board which was working. However the sensor doesn't work now, reading product id or serial number returns 0xFF, and when it is powered by lab bench power supply it is found that the VDDRTC pin draws 0.5A at 3.3V, and VDD current is around 0.8A. What would be the possible reason for this problem and any way to fix it? Thank you.

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