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AD7794 issue: Measuring voltages from batteries and Shunt resistors

Question asked by Javinven on Oct 15, 2014
Latest reply on Oct 23, 2014 by ChrisD.Rama

Hi,

 

I am using an AD7794 to measure six differential voltages (please have a look at the schematic below). Three of them must measure voltages from some batteries (24V) and the other three must measure the some currents (the currents from those three batteries) through three Shunt resistors (60mV/10A). The thing is that I cannot connect a voltage measurement and a current measurement at the same time because the results I get are wrong.

I do not know whether the problem is some feedback between my inputs or some issues with the AD7794.


What do you guys think that is going on? Thanks in advance.AD7794.png

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