Stats

  • Locked Locked
  • Replies 2
  • Subscribers 126
  • Views 13217
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

AC analysis

kapiljainwal

I am simulating Folded cascode opamp and when I am doing AC analysis the phase and agmitude graph is coming opposite, that means when i am takine 20dB Gain (Vout/vin) then it is showing opposite graph with negative values. but when i am doing 20dBGain(Vin/Vout) it is coming properly. I am not getting what is the problem. Please help.

 

Parents

  •  Hi kapiljainwal,

     You are doing a loop stability analysis on the opamp connected in unity gain buffer mode I presume?

     If this is the case then reverse the polarity of the lstb voltage source probe you are using.

    Regards,

     Naren

Reply

  •  Hi kapiljainwal,

     You are doing a loop stability analysis on the opamp connected in unity gain buffer mode I presume?

     If this is the case then reverse the polarity of the lstb voltage source probe you are using.

    Regards,

     Naren

Children
No Data

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.