High speed logic circuit

Details High speed logic circuit High speed logic circuit

1991-08-08

1993-01-19

LaRoche, Eugene R.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307263, 307554, 307565, 307568, H03K 19094

Patent

active

051809362

ABSTRACT:
An improved GaAs switching device is disclosed, of the type having a switched clamp which shunts pull-up current except during a portion of a "0" to "1" transistion at the device's output. The device herein provided enhanced immunity to interconnect resistance by isolating the gate-to-source Schottky diode of the clamp's FET from the device's output node. In accordance with the invention, the gate-to-source current through the clamp's FET is limited by an impedance device in the FET's gate circuit to provide the isolation.

REFERENCES:
patent: 4096398 (1978-06-01), Khaitan
patent: 4543494 (1985-09-01), Wakimoto
patent: 4935647 (1990-06-01), Larkins
patent: 4958132 (1990-09-01), Plants

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