• Skip to main content
  • Skip to search
  • Skip to footer
Cadence Home
  • This search text may be transcribed, used, stored, or accessed by our third-party service providers per our Cookie Policy and Privacy Policy.

  1. Community Forums
  2. Mixed-Signal Design
  3. saving operating points

Stats

  • Locked Locked
  • Replies 10
  • Subscribers 64
  • Views 24371
  • 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

saving operating points

Charanraj Mohan
Charanraj Mohan over 9 years ago

Hi,

I am writing something like this below,

'save M0,M1:all'

in the file saveop.scs and loading this in the model libraries setting of the ADE and getting the dc operating points in the simulation.

It worked well in AMS 0.35um, UMC 130nm, but not in ST 130nm :-(

Do you have an alternate way to this easier like above or to tackle this ??

I am using IC 6.1.6 130 version.


Thanks in advance.

  • Cancel
Parents
  • Charanraj Mohan
    Charanraj Mohan over 9 years ago
    Thanks Andrew,
    I selected gm in the options of the 'Operating parameter' and ran the simulation. And I do not get any plot. When I click 'plot Outputs' icon in ADE, I see the error, as mentioned in my previous reply along with a warning at last which says, Wave1 is not a waveform object that can be displayed and will be DELETED automatically.

    As you were talking about the models, the details of the model are as below-
    The model is a high voltage pMOSFET named 'pdomos50' in ST 130nm. I spotted a difference of these MOSFETs from other kits. When I select the MOSFET and press 'Q' to know its parameters, I can see an option called 'Model name' and under it I have 8 choices to select, as follows,

    1.EP5V0_BS3JU
    2.EP5V0_BS3JULEAK
    .
    .
    .
    .
    7.EP5V0_PSP
    8.user

    I think these are BSIM3 and Penn State Philips models. I choose the first one i.e. EP5V0_BS3JU and ran simulation. Are these details helpful in knowing whats happening ?

    Thanks.
    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
Reply
  • Charanraj Mohan
    Charanraj Mohan over 9 years ago
    Thanks Andrew,
    I selected gm in the options of the 'Operating parameter' and ran the simulation. And I do not get any plot. When I click 'plot Outputs' icon in ADE, I see the error, as mentioned in my previous reply along with a warning at last which says, Wave1 is not a waveform object that can be displayed and will be DELETED automatically.

    As you were talking about the models, the details of the model are as below-
    The model is a high voltage pMOSFET named 'pdomos50' in ST 130nm. I spotted a difference of these MOSFETs from other kits. When I select the MOSFET and press 'Q' to know its parameters, I can see an option called 'Model name' and under it I have 8 choices to select, as follows,

    1.EP5V0_BS3JU
    2.EP5V0_BS3JULEAK
    .
    .
    .
    .
    7.EP5V0_PSP
    8.user

    I think these are BSIM3 and Penn State Philips models. I choose the first one i.e. EP5V0_BS3JU and ran simulation. Are these details helpful in knowing whats happening ?

    Thanks.
    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
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.

© 2025 Cadence Design Systems, Inc. All Rights Reserved.

  • Terms of Use
  • Privacy
  • Cookie Policy
  • US Trademarks
  • Do Not Sell or Share My Personal Information