Stats

  • Locked Locked
  • Replies 5
  • Subscribers 166
  • Views 3254
  • Members are here 0
More Content
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

ORCAD-PSPICE: Monte Carlo, Save bias point and load bias point options grayed out for DC sweep....also I can't see CGS and CGD during bias point simulation, only CGSOV and CGDOV.

iampaulq

When watching tutorials, i can see the users click on simulation profile and all the tick boxes are tickable. In my case, some of the tick boxes are grayed out. The image below shows the problem.

Another problem is that when performing bias point analysis, i can't see CGS and CGD, only CGSOV and CGDOV. Again, I have seen in tutorials that both should be visible during bias point analysis.

or maybe the derivatives are the capacitances? 

  • oldmouldy

    Which exact version are you running? Check from Help>About in Capture

    The circuit cannot be reproduced from the PDF referenced to investigate this further. Can you select the DSN file entry in the Project Manager window and use File>Archive Project? Create a single ZIP of the project and any custom referenced libraries and attach that to the forum.

    Derivatives are what it says in the text, rate of change of charge for Gate and Bulk

  • iampaulq
    in reply to oldmouldy

    I'm using orcad capture CIS 17.0 S002.  

  • iampaulq
    in reply to oldmouldy

    zip file is beyond the file size requirement . I uploaded it here in my google drive: drive.google.com/open

  • oldmouldy
    in reply to iampaulq

    Thanks for the archive. The models MOSN1 and MOSP1 are not included for the OPAMP schematic, if you can attach the LIB file for those, I can take a look at the simulation results with the latest version.. Version 17.0 was a short lived release and not widely used and it is possible, since this was never a "general" release, that there are issues related to the Capture / PSpice tools that were never reported. Getting the latest version, 17.2-2016.s048, should address the Simulation Profile related issues that you are seeing.

Cadence Guidelines

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.