Amplifier apparatus having low-pass characteristic

Details Amplifier apparatus having low-pass characteristic Amplifier apparatus having low-pass characteristic

H - Electricity

03

F

330/20

H03F 3/45 (2006.01) H03F 1/30 (2006.01) H03H 19/00 (2006.01)

Patent

CA 1145420

RCA 74,698 ABSTRACT The input terminal of a voltage follower is coupled to a point of reference potential via a first capacitor. A second capacitor is alternately connected across a source of input signals and connected in parallel with the voltage follower during mutually exclusive time intervals whereby an output voltage is produced across the first capacitor proportional to a differential mode component of the input signal. The arrangement is such that internally generated noise is suppressed, very low frequency breakpoints (lag) may be realized with practical element values and there is substantially no tendency toward saturation in the presence of high frequency input noise components.

372691

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