I downloaded INA188 TINA-TI Reference Design, and made some modification as attached.
if the V2 is less than -2V, the file works fine, I am going to use it in a single power circuit, so I try to make it 0V. but the simulation has convergence problem.
another question is the Ref voltage, if I change it to 0, then the simulation has convergence problem.
is it normal that the voltage setup will affect the simulation, but in the real work it works fine?