The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 11, 2000

Filed:

Feb. 04, 1998
Applicant:
Inventors:

Keisuke Kawakita, Tokyo, JP;

Akira Ohmichi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06G / ;
U.S. Cl.
CPC ...
327563 ; 327108 ; 327 56 ; 327 89 ; 330260 ; 330261 ;
Abstract

A differential amplifier circuit has a differential amplifier circuit section for amplifying a difference voltage between an inverting input node and a non-inverting input node, and an output buffer circuit for outputting, to an output node, the amplified difference. The differential amplifier circuit section is connected to a first high potential power supply node and a first low potential power supply node, and is driven by potentials applied to the first high potential and first low potential power supply nodes. The output buffer circuit is connected to a second high potential power supply node and a second low potential power supply node, and is driven by potentials applied to the second high potential and low potential power supply nodes.


Find Patent Forward Citations

Loading…