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:
Dec. 16, 1980
Filed:
Feb. 11, 1974
Veikko R Saari, Spring Lake Heights, NJ (US);
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Abstract
An internally compensated monolithic integrated operational amplifier circuit has a differential input stage, balanced complementary common base stage, a complementary compound emitter-follower stage, and a push-pull output stage. The push-pull output stage includes complementary common emitter transistors, the base electrode of each transistor connected to a transistor connected in common base configuration. Bandwidth and slew rate are enhanced by a feed-forward capacitor connected between the amplifier inverting input and the input to the push-pull output stage and also by a range extender network connected between the output of the input differential stage and the input of the push-pull output stage. Internal bias voltages are referenced to the potential applied to the amplifier noninverting input by means of a voltage follower circuit which is interactively connected with a diode chain and current sources.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile