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.
Patent No.:
Date of Patent:
Aug. 19, 2008
Filed:
Dec. 29, 2006
Tomohiko Ito, Yokohama, JP;
Tetsuro Itakura, Nerima-ku, JP;
Tomohiko Ito, Yokohama, JP;
Tetsuro Itakura, Nerima-ku, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
Disclosed is a differential amplifying circuit including an amplifying circuit, wherein 1) a drain of a sixth transistor is connected to a drain of an eighth transistor, and a drain of a tenth transistor is connected to a drain of a fourth transistor, and 2) a ratio between a total of gate widths of the fourth (or eighth) and tenth (or sixth) transistors (converted per unit gate length, and gate widths that follow are the same)and a gate width of a fifth (or ninth) transistor is nearly proportional to a current ratio between a first (or third) and second (or fourth) current source circuits, the gate width of the fourth (or eighth) transistor being equal to or more than that of the tenth (or sixth) transistor.