• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Subscribers 47 subscribers
  • Views 697 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

THS4031: Issue of PSPICE model for THS4031

MESH
Intellectual 880 points
Part Number: THS4031
Other Parts Discussed in Thread: OPA355

Hello,

I download PSPICE model (sloj005a.zip) for THS4031 from TI web site. (www.ti.com/.../sloj005)

I inport these PSPICE model files (ths4031.lib and ths4031.olb) to OrCAD PSPICE simulator.

However THS4031 PSPICE model does not work on OrCAD PSPICE simulation.

I would like to confirm that contents of ths4031.lib are normal.

Note that the OPA355 PSPICE model file  (sbom875.zip) imported by the same method worked normally on OrCAD PSPICE simulation,
so I don't think it is an import problem to OrCAD PSPICE simulator.

Regards,

MESH

  • 0
    TI__Mastermind 23669 points

    MESH,

    I compared the THS4031 library file from the TI website to the file included with PSPICE for TI and found them to be identical.  This suggests the contents of the library file may be complete/correct.  Could you elaborate on what circuit configuration you are attempting to use the THS4031 model? 

    Also, I want to double-check you properly imported the ths4031.olb file correctly, via "Place Part" > "Add Library" method in OrCAD PSPICE.  I recognize you mentioned your method worked with the OPA355, I am just confirming your method here.

    In short, if you could clarify how you are using/testing the THS4031 model I can better understand why it is not working as intended.

    Best,

    Alec Saebeler

  • 0 in reply to Alec Saebeler
    Intellectual 880 points

    Hello Alec,

    Thank you for your reply.
    Today I tried reinport THS4031.lib and THS4031.olb files to OrCAD PSPICE library folder.
    And I executed setting of simulation profile to add THS4031.lib file and setting of design file to add THS4031.olb file.
    As a result, the TH4031 circuit simulation worked.
    I think there was something wrong with yesterday's import process.
    I'm sorry.

    The simulation circuit is same circuit as Figure 6 on application report (SBAA135A).
    As a result of circuit simulation, it was confirmed that the THS4031 model outputs an appropriate signal according to the output current from the DAC.

    Regards,

    MESH

  • 0 in reply to MESH
    TI__Mastermind 23669 points

    MESH,

    I am glad you were able to get the THS4031 files to work.  I appreciate you giving some context for your circuit as well, thought I am happy to see you are no longer having issues with SPICE model.

    Good luck with the rest of your design.

    Best Regards,

    Alec Saebeler