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:
Oct. 31, 2006
Filed:
Jul. 08, 2005
Oguz Altun, Richardson, TX (US);
Vijaya B. Rentala, Plano, TX (US);
Gabriel J. Gomez, Plano, TX (US);
Baher S. Haroun, Allen, TX (US);
Oguz Altun, Richardson, TX (US);
Vijaya B. Rentala, Plano, TX (US);
Gabriel J. Gomez, Plano, TX (US);
Baher S. Haroun, Allen, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
An analog-to-digital (A/D) converter system is provided that compensates for operating variations associated with one or more passive components of the A/D converter. In one aspect of the present invention, the A/D converter system comprises a sigma delta modulator having at least one passive component and a feedback path that includes at least one switched digital-to-analog converter (DAC), and a tracking reference generator that provides compensated reference signals to the at least one switched DAC for providing feedback to the sigma delta modulator. The compensated reference signals include inverse variations that cancel operating variations associated with the at least one passive component.