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OPAMP modelling in hspice

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knreserve

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hspice ideal op amp

Hi,

I am trying to model ideal opamp in unity gain configuration (voltage follower).
I used VCVS with max/min voltages.
Hspice simulation of this circuit runs out with non-convergence error (saying timestep is too small).
Can enyone help me to force this simulation run. Maybe some additional (ideal) elements I need to include in ideal opamp schematic or maybe some sim options can help ?

Thank you in advance
knreserve
 

JoannesPaulus

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how to layout opamp

You could add a dominant pole using RC at the output of the VCVS...
 

knreserve

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ideal operational amplifier hspice

Thank you, JoannesPaulus for your feedback.
I will try it
 

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