I am working on a project in which I am required to sense current in micro ampere range from a 2kV power supply. Here is a link of an article which I am referring.
While Searching on google I found that in high side current sensing the common mode voltage range should include the supply voltage (that i am providing to the load) within its range. The common mode voltage range of the max4172 IC used in the circuit is +2V to +32V. Will it support my 2kV supply. if not, could anyone please suggest an alternative solution to this problem.
*Also i am confused about the 9v battery and 1000v. Why their positive side is connected to the same node?
Thanks in advance!