Is there any advantage of the following op amp based voltage follower:-
over one made with discrete MOSFET components such as:-
other than component count?
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Sign up to join this communityIs there any advantage of the following op amp based voltage follower:-
over one made with discrete MOSFET components such as:-
other than component count?
Yes opamps are better. the opamp is two components: the opamp and the bypass capacitor. the mosfet follower is 5 components.
Additionally, opamps have lower offset voltages and better linearity, and better accuracy because of large amounts of negative feedback.
The only case where I would use a discrete follower would be with high voltages. Because it is more difficult to get high-voltage opamps that are cheap.