• Resolved

Feedback on "6.1 TI Precision Labs - Op Amps: Slew Rate 1"

Feedback on "6.1 TI Precision Labs - Op Amps: Slew Rate 1"

Hi,

First of all, thank you for offering this kind of great Op Amps seminar online for free of charge.
These are really helpful for me and I would like to thank all the member who work for this seminar.

I have quick feedback on the course of Slew Rate 1.
We have a slide "Simulate Slew Rate - OPA2188" on page 7, and it seems SR is calculated with Vout from the range of 10%(-904mV) to 90%(899mV)
However, since Vout is 1Vpeak (2Vpp), if we use 10%/90%, then SR should be calculated from 10%(-800mV) to 90%(800mV).

Of course, the answer is still same (0.8V/us), however, if there is a trick behind, just let me know!



Thanks,
Ken

  • Hi Ken,

    Yes, this looks like a simple oversight. The 10 % and 90 % points of the ouput waveform in slew rate limiting are -800 mV and +800 mV, respectively, as you stated. 

    I am not sure when this section will be revised, but your point is something we need to keep in mind. Thanks for bringing it to our attention.

    Regards, Thomas

    Precision Amplifiers Applications Engineering, Thomas

  • In reply to Thomas Kuehl:

    Hi Thomas,

    Thank you for checking. I see it's just a oversight... : )

    Thanks,
    Ken