Differential input receiver

Details Differential input receiver Differential input receiver

2006-06-20

2006-06-20

Tra, Quan (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Particular stable state circuit

C327S206000, C327S065000

Reexamination Certificate

active

07064595

ABSTRACT:
The differential input receiver provides constant symmetrical hysteresis over a wide input signal range. The differential input receiver includes a pair of complementary differential comparators having common input terminals, a pair of series connected complementary current mirrors each having source terminals driven by the output terminals of the corresponding differential comparator, a pair of transistors connected in series across each differential pair transistor in each differential comparator to form a potential divider across it, and a pair of series connected inverting buffers connected to a common output of the differential comparators to provide the final output. The individual buffer outputs are fed back to the control terminals of the series connected transistors in a manner that provides positive feedback thereby providing equal rise-time, fall-delay and transition times in the output signal.

REFERENCES:
patent: 5554942 (1996-09-01), Herr et al.
patent: 6208187 (2001-03-01), Callahan, Jr.
patent: 6879198 (2005-04-01), Kumar et al.
patent: 2005/0127970 (2005-06-01), Sharma et al.

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