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:
Jul. 22, 2014
Filed:
Feb. 28, 2011
Yoshiyuki Endo, Yokohama, JP;
Kenta Aruga, Yokohama, JP;
Suguru Tachibana, Yokohama, JP;
Koji Okada, Yokohama, JP;
Yoshiyuki Endo, Yokohama, JP;
Kenta Aruga, Yokohama, JP;
Suguru Tachibana, Yokohama, JP;
Koji Okada, Yokohama, JP;
Spansion LLC, Sunnyvale, CA (US);
Abstract
A reference voltage circuit includes a first amplifier configured to output a reference voltage, a second amplifier coupled to the first amplifier, an offset adjustment voltage generation circuit, a first load device and a first pn junction device, and second and third load devices and a second pn junction device. The offset adjustment voltage generation circuit is configured to generate a voltage which is input to the third and fourth input terminals of the second amplifier, and reduce an offset voltage between the first and second input terminals of the first amplifier through the second amplifier. The first input terminal is coupled to a coupling node of the first load device and the first pn junction device, and the second input terminal is coupled to a coupling node of the second load device and the third load device.