I need your help. I downloaded your LTspice software and tried to simulate circuit with Opamp ADA4625. Simulation was unsuccesful. When I changed the opamp for ADA4622, it worked great. Is it a problem with ADA4625 Spice model? Could you check it? Here is my simulation. I expect output waveform 0 - 3 V (from input range 2.05 to - 2.05 V.