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Wrong output from TINA DC simulation

Yue Chen
Prodigy 41 points
Other Parts Discussed in Thread: TINA-TI

I used TINA to build a composite op amp structure, but there are some problems with the DC simulation results, when I use 4.9V and 5.1V differential inputs, the output composite is expected, but when using 5V, the output results are very confusing. Looking forward to your reply, thank you!

simulation.TSC

  • 0
    TI__Guru 71526 points

    Hello Yue,   

    Thank you for your inquiry about TINA.  Since TINA is a DesignSoft/TINA program, questions are handled by using the DesignSoft support page: http://www.tina.com/technical-support/  . 

    The DesignSoft/TINA team is very helpful and this is the most direct way for TINA support.  Please advise by Reply when the issue has been resolved.    

    Regards, 

    ~Leonard     

  • 0 in reply to LeonardEllis
    Prodigy 41 points

    Hi Leonard,

    Thank you. I have asked the question according to the method you said, but the TINA-TI I use is a free version, so I don't know if I can get a reply. I found a solution is to set the DC absolute current error to 100p, I can understand that it may be a convergence problem, but I don't know why it is only 5V.

    Best regards,

    Yue