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:
Jun. 28, 1983
Filed:
Feb. 12, 1981
Robert A Blauschild, Los Altos, CA (US);
Signetics, Sunnyvale, CA (US);
Abstract
A linear transconductance amplifier includes a differential transconductance amplifier stage and a differential correction amplifier stage. In order to achieve linear operation over a wide dynamic range, the nonlinearities generated in the transconductance amplifier stage are substantially cancelled by the nonlinearities generated in the correction amplifier stage. This is accomplished by cross-coupling the two stages and establishing the relative gain of the correction amplifier stage with respect to the transconductance amplifier stage such that the desired cancellation occurs. In a preferred embodiment, optimum cancellation occurs when the gain of the correction amplifier stage is substantially one-half the gain of the transconductance amplifier stage.