Hello,
I have a noisy circuit that I needs to be isolated from the main supply. Space constraints make a filter in the kilohertz range not suitable for our design.
The noisy part can easily live with some 100 mVpp of ripple or oscillations on its own…
I agree that application note does not provide solution for a 2 V clamp.
Perhaps the attached method will work where a low cost CMOS regulator is used to set a bias level of around 1.2 V of which a schottky diodes can be used to clamp the voltage…
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