High speed peak amplitude comparator

Details High speed peak amplitude comparator High speed peak amplitude comparator

2005-05-03

2005-05-03

Nguyen, Linh M. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C327S062000

Reexamination Certificate

active

06888381

ABSTRACT:
Various methods and circuits for implementing high speed peak amplitude comparison. The invention achieves higher speed of operation by eliminating the slow feedback loop commonly employed in peak detection. In one embodiment, the invention directly compares a signal that represents the peak amplitude of the input signal minus a small voltage drop, to a modified reference voltage. The modified reference voltage corresponds to the reference voltage that is adjusted to compensate for the small voltage drop in the maximum input voltage. In another embodiment, the invention implements a differential version of the peak amplitude comparator to obtain better noise rejection and reduced effective offset among other advantages.

REFERENCES:
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patent: 5041795 (1991-08-01), Bowers
patent: 5189313 (1993-02-01), Garuts
patent: 5381053 (1995-01-01), Yasuda
patent: 5631584 (1997-05-01), Smith
patent: 5942921 (1999-08-01), Talaga, Jr.
patent: 6051998 (2000-04-01), Lee et al.
patent: 6388477 (2002-05-01), Juang

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