ideal op-amp in Hspice

[hitlgc]

Hi all,

I defined an ideal op-amp in hspice like this:

Eop out 0 OPAMP in 0 MAX=+5 MIN=0 4.0

The input is a pulse from 0 to 1.25v.

If there is no "OPAMP" in this syntax, the result is right.
If there is, the output swing between ±300v.

What should I do?

Thanks.

 

[Humungus]

Read the manual on the topic concerning voltage controled voltage sources and have a look on what the supposed behavior is when the keyword OPAMP is used

 

[nuiscet]

Use the '.model ...' to select some o.p.amp parameters, and when doing the hspice simulaiton, the hspice software will automatically produce the requested o.p.amp model corresponding to the just settled o.p.amp parameters.