Integrated circuit comprising a signal level converter

Details Integrated circuit comprising a signal level converter Integrated circuit comprising a signal level converter

1989-09-01

1991-09-10

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307359, 307362, 307475, H03K 500, H03K 19094

Patent

active

050476572

ABSTRACT:
An integrated circuit which includes a converter for converting a logic input signal of a first logic type into a logic output signal of a second logic type, for example, from ECL to CMOS level. The converter comprises a buffer, including a controllable load and a driver transistor, and a control circuit. The load is controlled as a function of a control voltage and a reference voltage which are externally applied so that the output signal is substantially equal to the reference voltage if the input signal is substantially equal to the control voltage. In one embodiment the control circuit is a copy of the buffer and receives the control voltage at its input. Its load is controlled by a differential amplifier whose inputs receive the reference voltage and the output voltage of the control circuit. A CMOS-SRAM comprising ECL/CMOS level converters of the above kind communicates with fast ECL circuits and has a low energy consumption.

REFERENCES:
patent: 4410813 (1983-10-01), Barker et al.
patent: 4551642 (1985-11-01), Aizawa et al.
patent: 4603267 (1986-07-01), Kowallek
patent: 4677321 (1987-06-01), Bacrania
patent: 4697110 (1987-09-01), Masuda et al.
patent: 4763021 (1988-08-01), Stickel
patent: 4791318 (1988-12-01), Lewis et al.
patent: 4845388 (1989-07-01), Amatangelo

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