Comparator circuit

Details Comparator circuit Comparator circuit

1993-11-24

1995-08-01

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 91, 327 72, 327 73, H03K 5153

Patent

active

054382890

ABSTRACT:
The present invention relates to a comparator circuit which is arranged such that detected data signal is waveform-shaped without producing any bit error, so that the data signal as transmitted can be accurately demodulated. Reference voltage V.sub.RE of the comparator which is compared with the data signal V.sub.IN is provided by adding output resulting from integration of the data signal V.sub.IN and integrated output of an inverter 2 which inverts output of the comparator 1. The reference voltage V.sub.RE of the comparator 1 can always be located at the center between the high level and the low level of the data signal V.sub.IN despite variations in DC voltage level of the data signal V.sub.IN.

REFERENCES:
Sedra/Smith Microelectronic Circuits Third Edition 1991 pp. 894, 895.

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