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:
Apr. 03, 1990
Filed:
Jun. 17, 1988
Applicant:
Inventor:
Thierry Meunier, Obereschach, FR;
Assignee:
SGS-Thomson Microelectronics S.A., Gentilly, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360 67 ;
Abstract
The present invention relates to a differential amplifier with differential outputs comprising a reference input, a signal input, a first (2) and a second (3) low-pass filter respectively connected with a differential output and with a comparator input (4), the comparator output being connected with the reference input of the amplifier in order to form a regulation loop which compensates for the d.c. level variations of the signal applied to the signal input and which servo-controls the d.c. level difference of the outputs to a value approaching zero. The invention applies to integrated circuits with differential amplifiers.