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:
Nov. 11, 2011
Applicants:
Armin Prohaska, Baden-Wurttemberg, DE;
Holger Vogelmann, Baden-Wurttemberg, DE;
Inventors:
Armin Prohaska, Baden-Wurttemberg, DE;
Holger Vogelmann, Baden-Wurttemberg, DE;
Assignee:
Atmel Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
According to a novel aspect, operating an analog rail-to-rail comparator circuit with common mode detection of differential input signals includes generating a hysteresis current for the comparator circuit based on a common mode voltage used for the common mode detection. The hysteresis current is added to a differential output of a comparator in the comparator circuit, such that a hysteresis voltage at an output of the comparator circuit is substantially independent of the common mode voltage.