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:
Apr. 03, 2007
Filed:
Dec. 19, 2005
Golam R. Chowdhury, Austin, TX (US);
Douglas Piasecki, Austin, TX (US);
Golam R. Chowdhury, Austin, TX (US);
Douglas Piasecki, Austin, TX (US);
Silicon Laboratories Inc., Austin, TX (US);
Abstract
The method is described for selecting capacitors from a capacitor array for each bit of a SAR ADC. The process involves selecting a group of capacitors from the capacitor array and determining a weight of the selected group of capacitors. A determination is made if the weights of the selected group of capacitors are substantially equal to their desired values. If the weights are substantially equal to their desired values, the selected group of capacitors is associated with each bit of the SAR ADC. If the weights are not substantially equal to their desired values, a next group of capacitors from the capacitor array is selected for the bits. This process of selecting a group of capacitors and determining their weights is repeated until determined weight for a group of capacitors equals or is closest to the desired values.