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Hi, I think VO1 and VO2 should have the same behavoir but simulation does not show thal. Could anybody where is my mistake ?

Hola, segun creo VO1 y VO2 deberian tener el mismo comportamiento pero en la simulación son distintos. Alguien puede decirme cual es mi error ?

https://www.circuitlab.com/circuit/63d5wy/filter/

I think the problem is that the TL081 is running out of steam. In other words, you are trying to work at too high a frequency for the TL081 gain bandwidth.

At the centre frequency of the filter (approx 100kHz), the TL081 does not have enough gain to properly drive the series resonant circuit.

If you replace the the TL081 with an idealised opamp having an infinite bandwidth then the circuit functions as expected:

Alternatively, if you increase all your L and C values by a factor of 1000 or even 10k, then you should find that the TL081 and the laplace block versions coincide.

:)

OK, thank you very much for your help !