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. 28, 2014
Filed:
Feb. 19, 2013
Applicants:
Sandro Herrera, Medford, MA (US);
Moshe Gerstenhaber, Newton, MA (US);
Inventors:
Sandro Herrera, Medford, MA (US);
Moshe Gerstenhaber, Newton, MA (US);
Assignee:
Analog Devices, Inc., Norwood, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/153 (2006.01); G01R 19/04 (2006.01);
U.S. Cl.
CPC ...
G01R 19/04 (2013.01);
Abstract
A circuit includes multiple input sub-circuits coupled to a common output node. Each input sub-circuit includes a transconductance cell. A diode is coupled between the output of the transconductance cell and a common output node. A feedback circuit is coupled between the common output node and a second input of the transconductance cell. A voltage follower is coupled between the common output node and a reference voltage, with an input coupled to the output of the transconductance cell.