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Explore Common Op-Amp (Operational Amplifier) Circuits, Configurations and Schematics. Plus, Find Helpful Resources and Examples. Visit To Learn More. ... Infinite input impedance (zero input current) ...
Figure 3 shows how the circuit can be adapted to use an amplifier with gain. Follower U2 provides the current required by bootstrapping circuit R3-R4-C9-C10.
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