I am trying to get PSpice to simulate an integrator but I am having difficulties. The output should be a triangle wave form that is approximately 1.3 volts. However I keep getting something much higher that doesn't resemble a triangle. (See images below) I am using a square wave with a peak to peak voltage of 5V (2.5 / -2.5). I have the frequency set at 2 kHz or a pulse width of .25ms and a period of .5ms.
It is weird but I get better results if I switch the negative and positive supply inputs. But it was still incorrect.
Has anyone had success with a similar project? Or has anyone had this problem? Should I give up on Pspice and operational amplifiers? I never get the results need. It's too iffy. Thanks for your help. schematic http://www.itssimplydesign.com/schematic.png