Propagation delay characteristic comparator circuit

Details Propagation delay characteristic comparator circuit Propagation delay characteristic comparator circuit

2007-06-05

2007-06-05

Nguyen, Long (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C327S563000

Reexamination Certificate

active

11124869

ABSTRACT:
A comparator circuit having improved operational characteristics. A predetermined voltage drop device is provided, such as an exemplary embodiment Schottky diode, having an anode connected to circuit power supply voltage and an output stage of the comparator and a cathode connected to an input stage of the comparator. The predetermined voltage drop device effects a lowering of the power supply voltage for the output stage bias between said power supply voltage and said common voltage. This reduces the required swing of the output stage drivers during a comparator input signal transition and reduces propagation delay of said comparator.

REFERENCES:
patent: 4401901 (1983-08-01), Ochi
patent: 5115151 (1992-05-01), Hull et al.
patent: 6121798 (2000-09-01), McQuilkin
patent: 6229352 (2001-05-01), Chevallier et al.
patent: 6252437 (2001-06-01), Fischer et al.

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