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:
Jan. 23, 2007
Filed:
Oct. 16, 2002
Applicants:
Gary Carreau, Plaistow, NH (US);
Bruce Amazeen, Ipswich, MA (US);
Inventors:
Gary Carreau, Plaistow, NH (US);
Bruce Amazeen, Ipswich, MA (US);
Assignee:
Analog Devices, Inc., Norwood, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/66 (2006.01);
U.S. Cl.
CPC ...
Abstract
A switched-capacitor circuit for use in analog-to-digital conversion samples an input signal with respect to a reference voltage, without having to generate the reference voltage, by using charge redistribution. The switched-capacitor circuit prevents the need to dissipate power while producing the reference voltage. The switched-capacitor circuit is coupled to a comparator and to a logic circuit which provides control signals for switching. The switched-capacitor circuit comprises a plurality of capacitors arranged according to several embodiments.