Hallo Prahlad,

let's a bit discuss result of your simulation:



This little negative peak lasts for about 35µsec! This is really untypical for a FET-OPamp like TL084! This behaviour can only be seen, if a much slowlier OPamp or, perhaps, slowly rectfying diodes like 1N400X are used. With TL084 and 1N4151 I think such a behaviour will not be observed: Fast signal diodes show a reverse recovery time in the nanosecond range and settling time of TL084 is only 1...2µsec!

Offset voltage can show a similar result, too. But a peak of 50mV...?

What components have you input into your simulation?

Kai