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. 22, 2016
Filed:
Mar. 21, 2014
Taiwan Semiconductor Manufacturing Company Ltd., Hsinchu, TW;
Chung-Peng Hsieh, New Taipei, TW;
Yung-Chow Peng, Hsinchu, TW;
Chung-Chieh Yang, Hsinchu County, TW;
Chung-Ting Lu, Kaohsiung, TW;
Chih-Chiang Chang, Taipei, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD., Hsinchu, TW;
Abstract
A circuit for measuring the gain of an operational amplifier is provided. The circuit comprises a first operational amplifier, a first resistive device and a second resistive device. The first operational amplifier has an original gain and includes a first input terminal and a second input terminal. The first resistive device is coupled between the first input terminal and the second input terminal of the first operational amplifier. The second resistive device is coupled to the second input terminal of the first operational amplifier. The first resistive device and the second resistive device are configured to reduce a predetermined amount of gain from the original gain of the first operational amplifier.