I have question regarding to ADUM4190.
There is two schematic by ADUM4190 and use 5V with VCC_P and P+5V.
Up one of schematic use OPA in ADUM4190 as voltage follower, Can I supply 3.3V to Gen_V for +IN than get output 3.3V from EAout?
Below one of schematic, can I use the OPA in ADUM4190 be Gain = 11 function? if so, what maximum Gain limit is for the OPA in ADUM4190?
Joe: The ADuM4190 when used as designed in the target application of isolated feedback in a closed loop with high gain in an isolated power supply, has a small error of +/-1%. Your applications do not have a closed loop, so the ADuM4190 has significant errors specified in the datasheet spec table: output offset of +/-0.4V and output gain of +/-17%. In addition, the input voltage range is 0.35V to 1.5V, which means it will not operate at 0V input.
As far as using the ADuM4190 for a gain of 11, for an input of 0V to 0.3V, as stated above, the datasheet specs limit the input voltage range from 0.35V to 1.5V.
Thanks. It's good information for me.