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ok I have seen this by performing various transient simulations.
Yes, some years ago OTA had a great development for high frequency "op-amp-style" circuits, it was very nice. Unfortunately most high speed OTA are no more supported ...
Yes I thought about TI.
Thanks a lot for this clear answer. I tried non feedback clamping circuits (for example replacing the Fet + op amp driver by a simple diode in my design B).
I did not know analog device's solution. I am a little bit suspicious about the quality of this solution, because if I'm not wrong analog...
Thanks for your two answers.
eriki : I hoped there was something more "home-made" circuit than integrated solutions. I will try this and give some feedback.
Chuckey : I do not accurately understand this answer. I think you speak about a quick return path for the spike to the source, that's it...
I wish to design a circuit that may clamp an input arbitrary waveform voltage with bandwidth less than MHz. The possibility to tune the clamping voltage is a requirement, and I also require to be able to clamp from a reference voltage. I tried two designs :
A) one called "precision clamping"...
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