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. 27, 2010
Filed:
Oct. 10, 2008
Applicant:
Heemin Yang, San Francisco, CA (US);
Inventor:
Heemin Yang, San Francisco, CA (US);
Assignee:
Linear Technology Corporation, Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
Circuits and methods for determining component ratios are provided. An analog to digital converter circuit may include comparison capacitors arranged in an upper group and a lower group for quantizing analog signals into the digital domain. In addition to determining the lower bits during an analog to digital conversion of an input sample, the lower group of comparison capacitors may also be used during calibration mode to quantize a ratio signal that represents the capacitor mismatches of the upper group rather than using a dedicated digital-to-analog converter to perform this function.