The customer has several questions about AD5290. Please let me know the answers asap.
Q1. Is SPI operated by +3.3V ? For example SDO pin could be pulled up by +3.3V instead of +5V ?
Q2. If VA, VB and VW would be powered before Vdd and Vss would be established after powered up, what would happen ?
Q3. Could you please share the figure of layout recommended ?