Couple noise protection circuit technique

Details Couple noise protection circuit technique Couple noise protection circuit technique

1996-10-23

1998-07-07

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Signal transmission integrity or spurious noise override

327310, 327208, 327538, 327311, H03K 500, H03B 104

Patent

active

057775044

ABSTRACT:
Disclosed is a novel circuit technique that will significantly improve the noise margin of a passgate latch design. The circuit technique consists of a passgate latch with additional circuitry for sensing the occurrence of coupled noise and then turning on a current mirror that injects current into the latch internal node to stabilize the latch. The circuit further includes a disabling system for disabling the additional circuitry during normal operation of the passgate latch.

REFERENCES:
patent: 4698529 (1987-10-01), Asami
patent: 5272674 (1993-12-01), Pathak et al.
patent: 5440257 (1995-08-01), Kawashima
patent: 5481213 (1996-01-01), Johnson
patent: 5508643 (1996-04-01), Khieu

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