Q:
Do you have any more details on the 1.5A surge current that the ADIS16375 draws during start-up?
A:
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At approximately 180ms, after the VDD voltage reaches 3.0V, the device will demand a short-term burst of energy that will last for ~400uS and require a peak current of 1.5A for a portion of this time. The current transient observed during device characterization is in the following picture:
