This is my current sense circuit that I connect to Arduino in order to measure how much current a load draws.
As you can see at the bottom of the image there is a -5 V voltage source connected to the instrumentation amplifier.
The -5 V voltage source I design is this using TLE2426CD.
I get stuck trying to connect that -5 V to the instrumentation amplifier. I try different connections on the simulator but I not get same results as the first picture. I think my problem is in the concept of virtual ground.