Differential emitter coupled logic circuit

Details Differential emitter coupled logic circuit Differential emitter coupled logic circuit

H - Electricity

03

K

H03K 19/086 (2006.01) H03K 17/62 (2006.01) H03K 19/21 (2006.01)

Patent

CA 2108883

A differential ECL (emitter coupled logic) circuit, with differential inputs and output and no series gates, comprises a plurality of transistor pairs. The differential ECL circuit can operate at high speed as there are no series gates and its noise margin is large because of differential operation. The differential circuit can be implemented into various logic circuits such as XOR (exclusive OR)/NXOR, OR/NOR, AND/NAND.

Un circuit différentiel à logique à couplage par l'émetteur avec des entrées et des sorties différentielles et sans portes en série comprend une pluralité de paires de transistors (11a-11h). Le circuit différentiel à logique à couplage par l'émetteur peut fonctionner à haute vitesse car il n'y a pas de portes en série et sa marge de bruit est large, à cause du fonctionnement différentiel. Le circuit différentiel peut être mis en oeuvre dans un multiplexeur ou dans différents circuits logiques tels qu'un circuit OU exclusif/NON-OU exclusif, OU/NON-OU, ET/NON-ET.

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