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:
Nov. 30, 1982
Filed:
Jun. 30, 1980
Otto H Schade, Jr, North Caldwell, NJ (US);
RCA Corporation, New York, NY (US);
Abstract
An operational amplifier includes a differential-input amplifier stage supplying first and second drive currents responsive to input signals applied to its input connections. A first current amplifier exhibiting gain factor G supplies currents to an output terminal responsive to the first drive current, and a second current amplifier exhibiting gain factor H supplies currents to that output terminal responsive to the second drive current. Each of the first and second current amplifiers includes means for switching the value of its respective gain factor G or H between a plurality of values responsive to a control signal, so the gain of the operational amplifier is programmable responsive to the control signal.