3740581 is referenced by 32 patents and cites 7 patents.

A precision high-speed, low impedance switching circuit is disclosed which is suitable for use with video or other high frequency analog signals. A J-FET is used as the switching element but is controlled by means of a novel circuit which minimizes channel impedance modulation effects. The gate of the J-FET is connected to the output of a control transistor, the input of the control transistor being connected to the input signal, thereby allowing the effective parasitic input capacity at the gate of the J-FET switch to be charged and discharged in accordance with the fluctuations of the input signal.

Precision switching circuit for analog signals
Application Number
Publication Number
Application Date
March 8, 1972
Publication Date
June 19, 1973
Pfiffner Harold J
Hughes Aircraft Company
H03k 17/60
H03K 17/567
H03K 17/687
H03K 17/56
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