3rd order bandpass filter simulation on Cadence 16.5

[Tarek Abu ElSauod]

Hi there
Peace on you all,

I'm designing a 3rd order mechanical filter and using electromechanical analogy i transformed it to equivalent electrical circuit and i want to simulate it on

Cadence to see its frequency response but 'floating nodes' error faces me everytime and i need help to know what is wrong

Thanks in advance

 

[crutschow]

I think any node that has no resistive path to ground will give the "floating nodes" error. Just connect a very large resistor from each of those nodes to ground (large enough to have no effect on the AC filter response).