I just read paper "Design guidelines of CMOS class-AB output stages: a tutorial".  In this paper, real output stage circuit and ideal first stage are combined to simulate.

My question is how to get the ideal OTA with two parameters: Gmota=100uuA/V and Rota=1M Ohm.

I have tried vccs(Gmota) with resistor. But I get wrong bode plot.

Can someone help me, thanks.