By changing 2 op amps and adding resistors I ran into a new problem. I 'm not able to see the voltage output of circuit completely at the transient analysis. Actually I apply 1V sin (with frequency of 1khz) to lower channel input while upper channel input is grounded. I am supposed to see a sinusoidal waveform at the very last output. But In analysis settings when I set RUN TO TIME= 1ms, I have errors like this one: Convergence problem in transient analysis at Time = 1.071E-06
After I change run to time or Tstop to 1us the voltage waveform isn't shown complete. I don't know how can I solve this problem. every single change in circuit creates new problems
After I change run to time or Tstop to 1us the voltage waveform isn't shown complete. I don't know how can I solve this problem. every single change in circuit creates new problems