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:
Feb. 01, 1983
Filed:
Jul. 07, 1980
Applicant:
Inventors:
San-Chin Fang, New York, NY (US);
Donald L Fraser, Jr, Warren Township, Somerset County, NJ (US);
Assignee:
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ; H03F / ;
U.S. Cl.
CPC ...
330253 ; 330255 ; 330257 ; 330258 ; 330259 ; 330260 ;
Abstract
An input differential amplifier stage (10), which feeds an output stage (20), has a feedback loop originating at a node (N.sub.1) in one branch, for controlling the current-source transistor (M.sub.5) of that stage. The feedback loop is characterized by a direct connection to the gate electrode of a transistor (M.sub.8) which drives the output stage (20), while the output at another node (N.sub.2), in the other branch of the differential amplifier stage (10) is fed to another transistor (M.sub.9) which also drives the output stage (20).