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:
Dec. 29, 2009
Filed:
Nov. 16, 2007
Liping Deng, Cupertino, CA (US);
Tiejun Dai, Sunnyvale, CA (US);
Haidong Guo, Sunnyvale, CA (US);
Chieh-chien Lin, Santa Clara, CA (US);
Yu-shen Yang, San Jose, CA (US);
Liping Deng, Cupertino, CA (US);
Tiejun Dai, Sunnyvale, CA (US);
Haidong Guo, Sunnyvale, CA (US);
Chieh-Chien Lin, Santa Clara, CA (US);
Yu-Shen Yang, San Jose, CA (US);
OmniVision Technologies, Inc., Santa Clara, CA (US);
Abstract
A switch-capacitor ('SC') amplifier includes a two-stage operational amplifier ('OP-AMP'), an input SC network, and a feedback SC network. The two-stage OP-AMP includes a first OP-AMP stage having an output coupled to an input of a second OP-AMP stage. The input SC network is coupled to an input of the first OP-AMP stage. The feedback SC network is configured to selectively couple the output of the first OP-AMP stage to the input of the first OP-AMP stage during a first phase of operation of the SC amplifier and to couple an output of the second OP-AMP stage to the input of the first OP-AMP stage during a second phase of operation of the SC amplifier.