Abstract
STRUCTURAL METHODS FOR INCREASING THE SPEED OF OPERATIONAL AMPLIFIERS
Andrey A. Danilov, Dmitry E. Polonnikov
Structural methods for improving the speed-of-response of operation amplifiers (OA) are discussed along with ways to reduce the settling time of an OA with a parallel negative feedback loop. Promising block diagrams for high-speed OA's are analyzed, specifically for OA current-to-voltage converters, and their maximal potentialities are estimated with regard to increasing the cutoff frequency and reducing the settling time of their output voltage.
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A. Danilov's commentary, 2013
This article first introduced the Dynamic Linearity Criteria of the operational amplifier (OA) with a total negative feedback (NFB). This Criteria is especially important for precision audio amplifiers, because it guarantees the preservation of linearity for any pulsed signals (read more).

Also, the article mentions the work of russian inventor Igor G. Ptahovskii (1975), which describes a current feedback amplifier (CFA), long before US patent, issued to Nelson and Saller in 1983.