Low power level shift circuit and method therefor

Details Low power level shift circuit and method therefor Low power level shift circuit and method therefor

1995-03-06

1996-03-26

Hudspeth, David R.

Electronic digital logic circuitry

Interface

Logic level shifting

326 33, 326 81, H03R 190175

Patent

active

055024068

ABSTRACT:
A low power level shift and buffer circuit (40) is used to level shift and amplify an output of an oscillator (14, 16, 18, 20, 22, 24) in a data processing application (10). A current mirror (58) and a reference current are used to provide a constant current source load for an inverter (56, 42). Separate controls for each of the two transistors forming a push/pull inverter (54, 50) eliminate a switching transient current by providing non-overlapping inputs to each of the two transistors. By eliminating the switching transient current, little power is consumed during the level shifting and amplification process. Furthermore, a significant amount of circuit area is not required and an output with fast rise and fall times is provided.

REFERENCES:
patent: 4472647 (1984-09-01), Allgood et al.
patent: 4647840 (1987-03-01), Hiyama
patent: 4767946 (1988-08-01), Taylor
patent: 4980583 (1990-12-01), Dietz
patent: 4988898 (1991-01-01), Jansson
patent: 5045730 (1991-09-01), Cooperman et al.
patent: 5144165 (1992-09-01), Dhong et al.
patent: 5148118 (1992-09-01), Dobkin et al.
patent: 5202855 (1993-04-01), Morton
patent: 5229659 (1993-07-01), Sandhu
patent: 5317214 (1994-05-01), Lewis
patent: 5426334 (1995-06-01), Skovmand
patent: 5440258 (1995-08-01), Galbi et al.

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