Differential ECL circuit

Details Differential ECL circuit Differential ECL circuit

1993-03-26

1994-05-24

Westin, Edward P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307443, H03K 19086, H03K 1716

Patent

active

053151763

ABSTRACT:
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.

REFERENCES:
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patent: 4963767 (1990-10-01), Sinh
patent: 5065060 (1991-11-01), Fernandez
patent: 5144164 (1992-09-01), Sugimoto et al.
patent: 5170079 (1992-12-01), Komatsu et al.
patent: 5200651 (1993-04-01), Komatsu et al.
IBM Technical Disclosure Bulletin. vol. 9, No. 9, Feb. 1967, New York US pp. 1210-1211 Evans `Exclusive-Or Complement Circuit`.
Electronics Letters, Mar. 29, 1990, vol. 26, No. 7, "New High-Speed Bipolar XOR Gate with Absolutely Symmetrical Circuit Configuration", pp. 430-431, L. Schmidt and H.-M. Rein.
Electronics Letters, Oct. 12, 1989, vol. 25, No. 21, "Gbit/s Multiplexer IC Employing Submicron Si Bipolar Technology for use in Future Broadband Telecommunications Systems" pp. 1422-1423, M. Bagheri et al.

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