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:
Aug. 13, 2013
Filed:
Nov. 12, 2009
Michael Brian Anderson, Colorado Springs, CO (US);
Michael Brian Anderson, Colorado Springs, CO (US);
Linear Technology Corporation, Milpitas, CA (US);
Abstract
Method and system for developing low noise bandgap references. A stacked ΔVgenerator is disclosed for generating ΔV. The stacked ΔVgenerator includes an error amplifier configured to generate an output based on an error signal provided by a first stack of the ΔVgenerator. The first stack of the ΔVis coupled to a first sub-circuit and the error amplifier to form a closed loop. The first sub-circuit is coupled to a power supply and ground and configured to provide a source current between the power supply and the ground. The stacked ΔVgenerator also includes a second sub-circuit coupled to the output of the error amplifier, the first and second stacks, and the ground, as well as a second stack of the ΔVgenerator, which is coupled to the first stack and the second sub-circuit. The ΔVis measured at outputs of the first and second stacks and equals the sum of individual ΔVs of the first and second stacks.