Sample-and-hold circuit device

Details Sample-and-hold circuit device Sample-and-hold circuit device

1993-10-29

1994-12-27

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

H03K 5153, H03K 524

Patent

active

053768418

ABSTRACT:
A sample-and-hold circuit device which includes a plurality of sample-and-hold circuits and a comparator/amplifier for comparing a reference potential with an output signal which is output from the plurality of sample-and-hold circuits so as to amplify a difference between these two signals. An output of the comparator/amplifier is fed back to respective control terminals of the different sample-and-hold circuits, each being provided as a level control signal. In another embodiment, a plurality of adding circuits are provided for adding the outputs of the plurality of sample-and-hold circuits and then comparing this value with an arbitrary reference potential, whereby a difference between the sum value and the arbitrary reference potential is amplified and fed back to the control terminals of the sample-and-hold circuits.

REFERENCES:
patent: 4502049 (1985-02-01), Atkinson
patent: 4639620 (1987-01-01), Wagenmakers
patent: 4641324 (1987-02-01), Karsh et al.
patent: 5252957 (1993-10-01), Itakura

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