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. 22, 1987
Filed:
Dec. 17, 1985
SGS Microelettronica SpA, Agrate Brianza, IT;
Abstract
A monolithically integratable signal amplifier stage with high output dynamics includes first, second, and third bipolar NPN transistors and first and second current mirror circuits. The collector terminal of the first transistor is connected to the positive terminal of a supply voltage generator. The base terminal of the first transistor is in input terminal of the amplifier stage. The base terminals of the second and third transistors are connected to the emitter terminal of the first transistor, which is connected via first constant current generator to the negative terminal of the supply voltage generator. The second and third transistors also have their emitters connected to the negative terminal of the supply voltage generator. The input of the first current mirror circuit and the output of the second current mirror circuit are connected to the collector terminals of the third and second transistors. The output of the first current mirror circuit and the input of the second current mirror circuit are both connected via a second constant current generator to the negative terminal of the supply voltage generator.