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:
Nov. 10, 1992
Filed:
Jan. 16, 1991
Ichiro Ishihara, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A differential amplifier pair includes first and second transistors emitters of which are connected to each other. A first current source is connected to a common emitter connection point of the first and second transistors. A source of a first MOS transistor is connected to a collector of the first transistor, and a source of a second MOS transistor is connected to a collector of the second transistor. Drains of the first and second MOS transistors are commonly connected to each other, and a second current source is connected to a common drain connection point. The first and second MOS transistors are selectively controlled to be turned on in accordance with an output from the differential amplifier pair.