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:
Jul. 24, 1984
Filed:
May. 24, 1982
Applicant:
Inventor:
Otto H Schade, Jr, North Caldwell, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
330253 ; 330257 ; 330261 ; 330259 ;
Abstract
Imbalances in the potential appearing across the drain electrodes of source coupled FET transistors arranged in a differential amplifier configuration tends to produce input offset voltages. Where the drain electrodes of the transistors are coupled to a current mirror load for converting balanced signals to a single ended output which in turn is applied to a common source amplifier, the input offset may be nulled by differentially adjusting the drain current of the common source amplifier against the source current of the differential stage.