Buffer Amplifier Circuit

摘要

Amplifier circuits implemented with a buffer amplifier with a voltage gain substantially equal to one. In one example, a continuous-time amplifier is implemented by applying the input source across the input and the output terminals of the buffer amplifier. In another example, a discrete-time amplifier is implemented. During the sampling phase at least one input voltage is sampled, and during the transfer phase at least one capacitor is coupled across the input and the output terminals of a buffer amplifier to effectuate an amplification.

主权项

1. An amplifier circuit comprising:
a buffer amplifier having an input terminal and an output terminal; and an input source having a source resistance wherein:
the buffer amplifier has high input resistance and a voltage gain substantially equal to one; andthe input source is electrically coupled across the input terminal and the output terminal of the buffer amplifier.