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OpAmp Settling time using wavescan

r7aaex

Hello, I am measuring settling time on an opamp while at the same time varying parameters to optimize it.  I am doing it the hard way by moving along the response curves to find the exact settling time.  Does anyone have a way of doing this using the "cross" function without getting the answer getting confused due to multiple crossings before the output settles out?  Thanks and best regards.

  • Hi Jorge,

    If this is still an issue for you - I'm just wading through some old questions - please attach the ppt or a pdf when replying (go to the Options tab when replying, and it gives you the ability to attach a file).

    Regards,

    Andrew.

  • Thanks Andrew, will do this later on today.  It is not an issue but perhaps a finding of the settling time function.

    Best regards,

    Jorge

     

  • Hello Andrew, the pdf attached shows 2 steps.  One is large signal and the other one is small signal.  I am interested in obtaining settling time for both steps.  I found out after trying various things that settling time function has problems with sginals with more than one step, In my case I have 2 steps.  Specifically, the problem occurs by giving wrong settling time for the second step.  The error occurs in the form of an offset that can easily subtracted and problem solved.  Perhaps you can advise if this is indeed how the settling time function will work.

     All the best to you on 2011,

    Jorge Vega

    OnSettlingTime.pdf

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