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:
Feb. 19, 2008
Filed:
Oct. 02, 2006
Wu-hung LU, Taipei, TW;
Yi-bin Hsieh, Taipei, TW;
Wu-Hung Lu, Taipei, TW;
Yi-Bin Hsieh, Taipei, TW;
Via Technologies, Inc., Taipei, TW;
Abstract
A cyclic pipeline analog to digital converter includes a dual mode sample and hold circuit, a multiplying digital to analog converter (MDAC), a sub-analog to digital converter (sub-ADC) and a decoder. The dual mode sample and hold circuit has a charge-redistribution mode and a flip-around mode. The dual mode sample and hold circuit receives first and second input voltages and first and second feedback voltages and generates a differential output signal pair. The MDAC receives the differential output signal pair and a digital multiplying word and generates the first and second feedback voltages. The sub-ADC receives the differential output signal pair and generates the digital multiplying word and a digital output word. The decoder converts the digital output word to a digital output corresponding to the first and second input voltages.