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:
May. 18, 2010
Filed:
Mar. 28, 2007
Shang-hsiu Wu, Hsinchu County, TW;
Shang-Hsiu Wu, Hsinchu County, TW;
Novatek Microelectronics Corp., Hsinchu, TW;
Abstract
The present invention provides a differential amplifier with a plurality of input pairs. The differential amplifier not only includes a differential amplifier with a single input pair but also includes a pair of transistors and a current source to provide the input signals of an extra input pair. The pair of transistors and the differential amplifier with a single input pair share a same load unit. In addition, by using control signals to control the on/off state of each current source, the input signals of the plurality of input pairs are switched, and thereby improve the signal quality. Thus, the need of an additional electrostatic discharge device (ESD device) may be avoided, and thereby reduce cost.