I am trying to simulate high speed pulses with AD8009an.
Input signal are short pulses 500ps rise time, 500ps width, 8ns fall time, 12,5ns period (red trace).
I want the signal to be amplified (gain 2) and offset to be symmetrical to 0V.
Even if I reduce speed, the result is not what I would expect from theory.
The offset is not as predicted. An offset of -1V should be added, but the simulation says its less:
I tried LMH6702 which should have even greater bandwidth, but results are even worse:
Is this a problem with ADIsim or is the Opamp not suited for this purpose?