Differential to single-ended logic converter

Details Differential to single-ended logic converter Differential to single-ended logic converter

2005-08-02

2005-08-02

Le, Don (Department: 2819)

Electronic digital logic circuitry

Interface

Current driving

C326S112000, C326S115000

Reexamination Certificate

active

06924668

ABSTRACT:
The present invention is a converter stage for converting a differential logic input signal and a corresponding common mode differential logic signal each having a first single-ended logic signal and a complementary second single-ended logic signal into a single-ended logic output signal. The converter stage comprises a first and a second differential stage each having a first and a second MOS transistor and a first and second current source for the differential stages. According to the invention the current sources are controlled by the voltage level which is centered between the mid-potentials of the common mode level differential logic signal and the mid-potential of the differential logic input signal.

REFERENCES:
patent: 5714906 (1998-02-01), Motamed et al.
patent: 5953276 (1999-09-01), Baker
patent: 6111431 (2000-08-01), Estrada
patent: 6452429 (2002-09-01), Lim
patent: 6686772 (2004-02-01), Li et al.

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