in order to operate AD5542A with 5V supply , 2.5V reference , 16 bit resolution and in bipolar mode what is apt supply to appy to Vlogic as it range from 2.7 to 5.5V.
The minimum logic high is 2.4V and the maximum logic low is 0.8V. This is applicable to the whole range of VLOGIC from 2.7 to 5.5V. You can use any level I.e. 2.7V, 3.3V, or 5V but the maximum and minimum logic levels are still the same.