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. 16, 2014
Filed:
Mar. 15, 2013
Applicant:
Dennis A. Dempsey, Newport, IE;
Inventor:
Dennis A. Dempsey, Newport, IE;
Assignee:
Analog Devices Technology, Hamilton, BM;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/78 (2006.01); H03M 1/66 (2006.01);
U.S. Cl.
CPC ...
H03M 1/66 (2013.01);
Abstract
Embodiments of the present invention may provide a multi-string DAC with leakage current cancellation. A leakage cancellation circuit may be coupled to output node(s) of the—multi-string DAC. The leakage cancellation circuit may replicate leakage current present at the coupled output node(s) and generate a corresponding complementary signal, a leakage cancellation signal. The leakage cancellation signal may be injected into the coupled output node(s) to cancel (or reduce) the net impact of the leakage current.