Hello,

I am designing an OpAmp.
For setting the poles I am using Laplace_nd. I am having a problem here, for whatever pole frequency I am setting while designing, the AC simulation is giving a pole at 1/10th of the modelled pole frequency.

For example
I have set pole frequency at 2MHz in the following statement
V(vout) <+ laplace_nd((gain*V(inp,inm)), {1.0}, {1.0, 5.0e-7});

while performing AC analysis with the above I am getting a pole at 200KHz

The same way I have verified for different cases in each case it is giving 1/10th of the desired.

Am I analyzing it correct? or is it a problem with the code

Please give some inputs on this

Thanks
Chviswanadh