About the AD4523
For AVDD1 = +15 V, AVDD2 = 5 V, AVSS = −15 V.
-what is the current supply value for Ivdd1?
VLOGIC I=3.3V can be coupled to VLDO or should be coup3led to extern alim?What is the difference?
Apologies. Can you clarify the part number please so we can better support you.
If this is a DAC related query, I'd recommend to move or post this to Precision DACs - EngineerZone (analog.com) community. Someone there may be able to assist you.