Stats

  • Locked Locked
  • Replies 3
  • Subscribers 126
  • Views 16228
  • 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

Current Mirror Output resistance waveform

frasheed

Hello,

I am testing and small current mirror circuit using spectre simulation. For DC analysis everything is working but for small signal AC analysis I am measuring the output resistance by running AC simulation but It's not giving me any results. As per my knowledge, Current mirror Output resistance is rout=1/(lambda*Id) so my equation for output resistance is (1 / IF("/I0/I_OUT")) and for anaylysis I have chosen "ac" and Sweep variable as frequency and I am sweeping it from 1 to 100Ghz. For simple current mirror It's not showing any wave form but for cascode current mirror its showing a wave form. Could anyone guide me where I am going wrong ?

Thanks

Parents
  • frasheed

    Thanks for the hint, I just noticed that my source AC voltage was missing :D,

    Its working fine now 

Reply
  • frasheed

    Thanks for the hint, I just noticed that my source AC voltage was missing :D,

    Its working fine now 

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.