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The main parameters and equations of basic configurations multidifferential operational amplifiers with high impedance node
Authors
	Prokopenko N.N.
	Butyrlagin N.V.
	Pakhomov I.V.
Date of publication
	2014
Abstract
	Researched multidifferential operational amplifier (m-OpAmp) with a single high-impedance node. Obtained the basic equations that simplify calculation parameters of analog-digital interfaces based on it. Consider properties the basic circuits incorporating m-OpAmp with the influence of the loop gain. Determined the coefficients of transmission and the input resistance of these circuits under identical and non-identical conductivities transmission input transducers "voltage-current" m-OpAmp. It is shown that a single chip m-OpAmp allows without feedback resistors to provide a high input impedance and wide enough spectrum identical characteristics for inverting and noninverting inclusionsand different transfer ratio (1, -1, 2, -2, 1.5; 3, 0.5, -0.5). Designates way improving speed performance m-OpAmp, reduce offset voltage, and increasing the loop gain.
Keywords
	multidifferential operational amplifiers, different differential amplifiers, analog inverters and adders signal, zero level, speed performance, loop gain
Library reference
	Prokopenko N.N., Butyrlagin N.V., Pakhomov I.V. The main parameters and equations of basic configurations multidifferential operational amplifiers with high impedance node // Problems of Perspective Micro- and Nanoelectronic Systems Development - 2014. Proceedings / edited by A. Stempkovsky, Moscow, IPPM RAS, 2014. Part 3. P. 111-116.
URL of paper
	http://www.mes-conference.ru/data/year2014/pdf/D126.pdf