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:
Jun. 10, 2008
Filed:
Feb. 11, 2005
Daniel Mark Dreps, Georgetown, TX (US);
Norman Karl James, Liberty Hill, TX (US);
Hector Saenz, Austin, TX (US);
Daniel Mark Dreps, Georgetown, TX (US);
Norman Karl James, Liberty Hill, TX (US);
Hector Saenz, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A digitally tunable low voltage CMOS current reference is disclosed. A tunable current reference circuit is provided that includes a current source circuit that is coupled to a power supply voltage. The current source circuit provides a stable current reference output regardless of fluctuations in the power supply voltage. Multiple digitally selectable inputs are included in the current reference circuit and are coupled to the current source circuit. These inputs are used to adjust a value of the current reference output.