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. 30, 2013
Filed:
May. 16, 2011
Meng-fan Cheng, Hsinchu, TW;
Yu-fan Lin, Hsinchu, TW;
Shin-jang Shen, Hsinchu, TW;
Yu-der Chen, Hsinchu, TW;
Meng-Fan Cheng, Hsinchu, TW;
Yu-Fan Lin, Hsinchu, TW;
Shin-Jang Shen, Hsinchu, TW;
Yu-Der Chen, Hsinchu, TW;
National Tsing Hua University, Hsinchu, TW;
Abstract
A low-offset current-sense amplifier and an operating method thereof are disclosed. The low-offset current-sense amplifier includes a sense amplifier, a first current supply unit, a second current supply unit, and a processing unit. The first current supply unit is coupled to the sense amplifier, and includes a first transistor group and a first current output terminal. The second current supply unit is coupled to the sense amplifier, and includes a second transistor group and a second current output terminal. The processing unit controls the on/off of some transistors of the first transistor group and the second transistor group according to electric currents output from the first current output terminal and the second current output terminal, respectively.