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:
Dec. 06, 2011
Filed:
Dec. 23, 2009
Eamonn Byrne, Limerick, IE;
Paraic Brannick, Limerick, IE;
Paul Kearney, Cork, IE;
Analog Devices, Inc., Norwood, MA (US);
Abstract
The invention is a novel scheme of performing an analog to digital conversion of simultaneous sampled analog inputs using multiple sample and hold circuits and a single successive approximation analog to digital converter ('SAR ADC'). Each of the analog inputs are stored on capacitors in the sample and hold circuits, and the sample and holds are sequentially connected to the capacitor DAC. After the digital conversion of the of the input signals stored on a sample and hold, the connected sample and hold is disconnected and the charge on the DAC is reset before the next sample and hold circuit is connected. The process is repeated until all analog inputs have been converted.