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. 07, 2002
Filed:
May. 30, 2001
Philip B. Fuhrman, Wilmington, DE (US);
Agilent Technologies, Inc., Palo Alto, CA (US);
Abstract
A multislope, continuously integrating analog-to-digital converter includes a first switch coupled to a first reference voltage, a second switch coupled to a second reference voltage, a third switch coupled to an input voltage, and an integrator operably coupled to the first, second, and third switches. The analog-to-digital converter utilizes a primary discharge current of opposite polarity to a secondary discharge current. The analog-to-digital converter has a high resolution due to a small reference voltage, and a high dynamic range due to a large reference voltage. The analog-to-digital converter can operate in either a conversion mode or a calibration mode. During the calibration mode, a calibration factor is calculated for use during the conversion mode. When applied to the conversion mode, the calibration factor corrects for errors in the conversion process.