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. 16, 1994
Filed:
Jan. 28, 1993
Applicant:
Inventors:
Assignee:
SGS-Thomson Microelectronics S.A., Saint-Genis Pouilly, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
330255 ; 330257 ; 330261 ;
Abstract
A device for compensating the offset of an input stage having two current output legs, the first of which is connected to the input of a real stage pushing into this first leg a parasitic current; the device including a fake stage pushing a compensation current having a value equal to the value of the parasitic current divided by a predetermined factor greater than 1, this compensation current being amplified by an amplifier having a gain equal to said predetermined factor, before being pushed into the second output leg of the input stage.