Increasing amplifier bandwidth by positive capacitive feedback

Details Increasing amplifier bandwidth by positive capacitive feedback Increasing amplifier bandwidth by positive capacitive feedback

2006-01-05

2008-09-09

Pascal, Robert J. (Department: 2817)

Amplifiers

Signal feedback

Frequency responsive feedback means

Reexamination Certificate

active

07423483

ABSTRACT:
An amplifier circuit includes a first amplifier having an input and an output, and a second amplifier having an input that communicates with the output of the first amplifier, and an output. The amplifier circuit includes a first capacitance that communicates with the input of the first amplifier and the output of the second amplifier. The amplifier circuit includes a third amplifier having an input that communicates with the output of the second amplifier, and an output. The amplifier circuit includes a second capacitance that communicates with the output of the third amplifier and the input of the second amplifier.

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Schin'ichiro Azuma et al., Embedded Anti-Aliasing in Switched-Capacitor Ladder Filters With Variable Gain and Offset Compensation, IEEE Journal of Solid-State Circuits, vol. 37, No. 3 Mar. 2002, pp. 349-356.

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