my system includes fpga and power supply that are not related and their gnd isn't common
as I described in the attached schem.
I want to switch the power supply 28v output
how should I connect the gnd?
I'm using ADG5421 in my design. I'm providing 31V(VDD) and -4V(VSS) for ADG5421. What is the supply current current required by 31V and -4V power rail. I'm asking this question as supply current for only some supply values mentioned in datasheet.…