Integrator using Op-Amp

The rounded top and bottom peaks could be made sharper by altering the rise and fall time of the source pulses towards zero time. The pulse width there likewise needs to be closer to 50%. The straight lines of your triangle are slightly curved if you look closely.... They could be straightened and so produce a better equality between the seen +/- Voutput.... try setting the input resistor to say 150k instead of your 15k.....that tau RC needs to be well greater than the half-time period of the full wave, ie greater than 0.5ms, your setting here shows it as less which may be ok for a LPF but not so good at integration. Once the shape is right, then any further amplification can be done ...see also my notes here: http://everycircuit.com/circuit/4894654381424640

Oh yeah! Thanks :) however, i designed this for a practical case using actual lab components.

Then again, i will try this out in the lab to see if it improves the output.

Should be interesting... The resistor value in parallel with the Cap is likely to make a big difference to the outcome, so that will need to be fixed at different values when viewing each set of results. Likewise for choice of frequency.