I'm new, I'd like to share with you a problem with AD623 spice model simulation.
I need to use this OPA for PT100 circuit but first I have to be sure that AD623 spice model (downloaded from AD web site) is correct.
My simulation (with Altium Designer) don't works correctly.
I post you a photo of the circuit and its simulation result.
Without resistor's gain I expect to the output just the difference between V+ and V- (GAIN=1).
Which is my error?