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:
May. 22, 2012
Filed:
Nov. 17, 2009
Jimmy Fort, Aix en Provence, FR;
Thierry Soude, Marseilles, FR;
Michel Cuenca, Septemes-les-Vallons, FR;
Florent Garcia, Fuveau, FR;
Franck Strazzieri, Auriol, FR;
Jimmy Fort, Aix en Provence, FR;
Thierry Soude, Marseilles, FR;
Michel Cuenca, Septemes-les-Vallons, FR;
Florent Garcia, Fuveau, FR;
Franck Strazzieri, Auriol, FR;
Atmei Rousset S.A.S., , FR;
Abstract
A bias current is generated for an unbalanced differential pair that is proportional to the transconductance gain of the differential pair. When the transconductance gain varies (e.g., due to temperature variations), the bias current varies in proportion thereby maintaining a constant offset voltage. In some implementations, a voltage to current converter circuit generates the bias current from a constant reference voltage that is independent of temperature and voltage supply variations (e.g., a bandgap reference voltage).