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.

Date of Patent:
Jul. 11, 2017

Filed:

Dec. 15, 2016
Applicant:

Stmicroelectronics International N.v., Amsterdam, NL;

Inventors:

Ashish Kumar, Ghaziabad, IN;

Chandrajit Debnath, Greater Noida UP, IN;

Pratap Narayan Singh, Benares, IN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/38 (2006.01); H03M 1/06 (2006.01); H03M 1/12 (2006.01); H03M 1/10 (2006.01);
U.S. Cl.
CPC ...
H03M 1/0626 (2013.01); H03M 1/1009 (2013.01); H03M 1/1245 (2013.01); H03M 1/38 (2013.01);
Abstract

An embodiment circuit includes a first reference source configured to provide a first reference signal to an analog-to-digital convertor (ADC). The circuit also includes a filter coupled to an output of the first reference source and configured to filter the first reference signal to produce a filtered first reference signal. The circuit further includes a second reference source coupled to an output of the filter. The second reference source is configured to provide a second reference signal to the ADC, and the second reference signal is generated based on the filtered first reference signal.


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