High speed logic circuit with reduced quiescent current

Details High speed logic circuit with reduced quiescent current High speed logic circuit with reduced quiescent current

1990-03-26

1991-08-27

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307542, 307546, 307446, 307570, 307263, H03K 19086, H03K 1902, H03K 512

Patent

active

050436023

ABSTRACT:
A high speed logic circuit with reduced quiescent current receives a plurality of input signals and performs a predetermined logic operation on the plurality of input signals. The predetermined logic operation may be, for example, a comparison of true and complement input signals, or a logical AND of two input signals. In response to the predetermined logic operation, first and second bipolar transistors coupled between first and second power supply voltage terminals are alternately made conductive to provide an output signal therebetween at ECL levels. A biasing portion ensures a proper voltage on a base of the second bipolar transistor. A current portion draws current from the base of the second bipolar transistor until the voltage of the output signal reaches a logic low voltage, and then makes the second transistor nonconductive, keeping the quiescent current of the circuit to a minimum.

REFERENCES:
patent: 3458719 (1969-07-01), Weiss
patent: 4346312 (1982-08-01), Christopherson
patent: 4737663 (1988-04-01), Varadarajan
patent: 4751410 (1985-06-01), Tanizawa
patent: 4816705 (1989-03-01), Ohba et al.
patent: 4845385 (1989-07-01), Ruth, Jr.
patent: 4908794 (1990-03-01), Yamaguchi
patent: 4939393 (1990-07-01), Petty
patent: 4948990 (1990-08-01), Shin et al.
patent: 4980582 (1990-12-01), Wallen et al.
ECLICs Play a Role in High-Speed Computers, by John Gallant, EDN, vol. 34, No. 17, pp. 73-85, 80 (Aug. 17, 1989).
Motorola MECL System Design Handbook, No. HB206R1, pp. 10-12.

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