AND circuit

Details AND circuit AND circuit

2007-04-17

2007-04-17

Le, Don (Department: 2819)

Electronic digital logic circuitry

Function of and, or, nand, nor, or not

Field-effect transistor

C326S119000

Reexamination Certificate

active

11045475

ABSTRACT:
An AND circuit is provided, which has a first differential pair including a first transistor and a second transistor, to which a first input differential signal is inputted, a second differential pair including a third transistor and a fourth transistor, to which a fixed bias is inputted, a third differential pair including a fifth transistor and a sixth transistor, to which a second input differential signal is inputted, and in which the first differential pair is connected to the fifth transistor and the second differential pair is connected to the sixth transistor, and an output terminal, which is connected to the first or second transistor and outputs an AND signal or a NAND signal of the first and second input differential signals.

REFERENCES:
patent: 5220212 (1993-06-01), Sinh
patent: 5334887 (1994-08-01), Kurashima
patent: 5969579 (1999-10-01), Hartke et al.
patent: 6414519 (2002-07-01), Abernathy
patent: 6680625 (2004-01-01), Lee et al.
patent: 6700413 (2004-03-01), Chou
patent: 02246615 (1990-02-01), None

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