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:
Oct. 15, 2013
Filed:
Oct. 12, 2011
Sunder S. Kidambi, Austin, TX (US);
Sunder S. Kidambi, Austin, TX (US);
Intersil Americas Inc., Milpitas, CA (US);
Abstract
A time-interleaved analog to digital converter (TIADC) that uses a digital filter to remove sampling-frequency symmetries that might otherwise degrade error correction. In an embodiment, two Analog to Digital Converter (ADC) cores provide a set of two ADC outputs. Interleaving the digital signals output by the ADC cores forms a digital representation of the input signal. The ADC cores have an offset correction input, a gain correction input, or a sample time correction input. Prior to estimating one or more of these errors, the ADC core output signals are filtered, with the filtering depending upon expected aliasing characteristics of the input signal.