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:
Apr. 08, 2014

Filed:

Sep. 12, 2012
Applicants:

Yen-cheng Cheng, Hsinchu, TW;

Hao-yuan Zheng, Hsinchu, TW;

Inventors:

Yen-Cheng Cheng, Hsinchu, TW;

Hao-Yuan Zheng, Hsinchu, TW;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
Abstract

A positive and negative voltage input operational amplifier includes a positive operational amplifier and a negative operational amplifier. Each of the positive operational amplifier and the negative operational amplifier has a reduced layout area and a lowered static current, so that the power consumption is effectively reduced.


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