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feedback stability analysis

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fala

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Hello board, I'm looking for a software that enables me to do feedback stability analysis. currently I'm using altium designer 6.6 that unfortunately it's SPICE module can't do this. It can do pole-zero analysis but it has very limited benefits. I'm looking for a simulator that can do the job properly, drawing gain-frequency, phase-frequency, 1/B frequency , ... plots. can OrCad do these things?
thanks
 

Matlab has a control systems package that does all that.
 

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    fala

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Thanks biff44 I have mathlab7.4(2007) DVD. I will look for that package but how I can feed the schematics of opamps that I want to do feedback analysis on them to mathlab?
Regards,
 

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