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ADR5045 Voltage bias for a voltage divider

Question asked by Morphin on Oct 15, 2014
Latest reply on Oct 16, 2014 by LucaV


I would like to measure the voltage with a voltage divider.

I would like to bias (offset, subtract) 5V with the ADR5045BKSZ-REEL7  from a 6-16V Voltage Source.


My current scheme is this:



I have calcuted that the Total current should be betwwen 75uA (6V Input) and  820uA (16v) Input. Max Voltage Output is about 3.5V, Minimum about 0.3V. (Spannungsteiler, belastet)



I have seen on another post that somebody made a similar circuit with a TL431 variable shunt regulator:



Do you agree that my solution should working?


Thank's very much for every input