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:
Aug. 02, 2005
Filed:
Dec. 02, 2002
Andreas Callanan, Murroe, IE;
Thomas J. Meany, Bruff, IE;
Andreas Callanan, Murroe, IE;
Thomas J. Meany, Bruff, IE;
Analog Devices, Inc., Norwood, MA (US);
Abstract
A multi-channel analog to digital converter which facilitates calibration of the analog to digital converter and respective input channels to the analog to digital converter, and a method for calibrating the analog to digital converter. A multi-channel ADC () comprising an ADC circuit () for converting analog signals received on input channels CHto CHN to digital output signals comprises a primary offset storing register () and a primary gain storing register () for storing respective primary offset and gain correction codes which are applied to the digital output signals in a primary correcting circuit () for correcting for the offset and gain errors introduced by the ADC circuit (). A plurality of secondary offset storing registers () and a plurality of secondary gain storing registers () store respective secondary offset and gain correction codes which are applied to the digital output signals in a secondary correcting circuit () for correcting for offset and gain errors introduced by corresponding ones of the input channels CHto CHN.