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. 17, 2011
Filed:
Jan. 22, 2007
Yann Le Guillou, Caen, FR;
Yann Le Guillou, Caen, FR;
NXP B.V., Eindhoven, NL;
Abstract
A continuous-time sigma-delta analog-to-digital converter (CV) including i) a signal path (SP) having at least one combiner (C) for combining analog signals to convert with feedback analog signals, at least two integrators (H, H), mounted in series, to integrate the combined analog signals, a quantizer (Q) for converting the integrated signals into digital signals, and a decimation filter (DF) for filtering digital signals, and ii) a feedback path (FP) having at least a digital-to-analog converter (DAC) for converting the digital signals output by the quantizer (Q) into feedback analog signals intended for the combiner (C). Each integrator (H, H) having variable capacitance means arranged to be set in chosen states defined by the values of a digital word, to present the chosen capacitances.