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:
Apr. 24, 2018
Filed:
Feb. 08, 2016
Rohm Co., Ltd., Kyoto, JP;
Tadashi Akaho, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A differential circuit includes a first constant current circuit, a second constant current circuit having the same constant current value as the first constant current circuit, a current mirror including a first transistor having a current sink terminal connected to the first constant current circuit, a current drain terminal to which a first input voltage is applied, and a gate short-circuited to the current sink terminal, and a second transistor having a gate connected to the current sink terminal of the first transistor and a current drain terminal to which a second input voltage is applied, and a current output terminal connected to a connection node between a part in which a current based on an output current of the current mirror flows and the second constant current circuit.