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:
Mar. 02, 2006
Mehmet Aslan, Sunnyvale, CA (US);
Mehmet Aslan, Sunnyvale, CA (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
An embodiment of the present invention is directed to a method for reducing the effects of temperature coefficients of series resistance in a temperature sensing circuit having a temperature sensing element. The currents through the temperature sensing element are relatively constant over temperature. The method includes adjusting the gain of an analog to digital converter to compensate for the change in current densities in the temperature sensing element multiplied by a characterized temperature coefficient of the series resistance of a signal path of the temperature sensing circuit. The method also includes adjusting an offset of the analog to digital converter to compensate for the change in current densities in the temperature sensing element multiplied by a characterized resistance of the signal path of the temperature sensing circuit.