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. 21, 2006
Filed:
May. 05, 2003
Applicant:
Daniel R. Mcmahill, Arlington, MA (US);
Inventor:
Daniel R. McMahill, Arlington, MA (US);
Assignee:
Maxim Integrated Products, Inc., Sunnyvale, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for providing dynamic element matching of capacitors in a pipelined analog to digital converter (ADC). Instead of randomizing the output of a flash ADC before providing the output of the ADC to the capacitor array, the threshold voltages from a reference ladder are randomized. This eliminates multiple, series connected switches of a randomizer between the output of a comparator bank and the capacitor array, and may be done during the time the output of the comparator bank of the flash ADC is latched, thereby not negatively impacting the speed of operation of the pipelined ADC.