BICMOS ECL-CMOS level converter

Details BICMOS ECL-CMOS level converter BICMOS ECL-CMOS level converter

1995-03-17

1997-05-20

Westin, Edward P.

Electronic digital logic circuitry

Interface

Logic level shifting

326 77, H03K 190175

Patent

active

056315805

ABSTRACT:
An input stage of a level converter for converting an ECL compatible signal to an MOS compatible signal is formed as a differential amplifier. The differential amplifier produces a current that is coupled directly to a first transistor of a pair of complementary transistors, during a transition interval, to turn on the first transistor. An output signal of the first transistor is fed back to a control terminal of the first transistor via a first inverter. Consequently, the first transistor is actively turned off immediately following the transition interval. A second inverter and the first inverter form a latch for maintaining the output signal unchanged, after the first transistor is turned off.

REFERENCES:
patent: 4835420 (1989-05-01), Rosky
patent: 4926065 (1990-05-01), Coy et al.
patent: 5012137 (1991-04-01), Muellner
patent: 5027013 (1991-06-01), Coy et al.
patent: 5173625 (1992-12-01), Uedam et al.
patent: 5329183 (1994-07-01), Tamegaya
patent: 5428312 (1995-06-01), Higeta

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