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Erratum published on 22 February 2017, see Appl. Sci. 2017, 7(2), 211.
Open AccessArticle

A CMOS Multiplied Input Differential Difference Amplifier: A New Active Device and Its Applications

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Department of Radio Electronics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 3082/12, Brno, Czech Republic
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Department of Telecommunications, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 3082/12, Brno, Czech Republic
3
Department of Microelectronics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 3058/10, Brno, Czech Republic
*
Author to whom correspondence should be addressed.
Academic Editor: Hung-Yu Wang
Appl. Sci. 2017, 7(1), 106; https://doi.org/10.3390/app7010106
Received: 9 November 2016 / Revised: 9 January 2017 / Accepted: 16 January 2017 / Published: 21 January 2017
This paper presents a newly developed active device, referred to as a multiplied input differential difference amplifier (MIDDA), which allows operations of summation/subtraction and multiplication of input signals. It was designed and fabricated using I3T25 0.35 μm ON (ON Semiconductor, Phoenix, AZ, USA) Semiconductor technology. The achieved results, which describe the experimentally verified behaviour of the fabricated device, are introduced, as well as the simple applications of MIDDA with electronically controllable parameters, useful for analogue signal processing. Moreover, the paper discusses an interesting example of nonlinear application to a double-sideband amplitude modulator, based on the utilization of multiplication and summation of particular signals. The laboratory experimental results which are achieved through the use of a fabricated prototype (both in time and frequency domain), confirm the workability of the concept. View Full-Text
Keywords: amplitude modulator; analogue signal processing; differential difference amplifier; electronic control; MIDDA; multiplication; on-chip experiments amplitude modulator; analogue signal processing; differential difference amplifier; electronic control; MIDDA; multiplication; on-chip experiments
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MDPI and ACS Style

Sotner, R.; Jerabek, J.; Prokop, R.; Kledrowetz, V.; Polak, J. A CMOS Multiplied Input Differential Difference Amplifier: A New Active Device and Its Applications. Appl. Sci. 2017, 7, 106. https://doi.org/10.3390/app7010106

AMA Style

Sotner R, Jerabek J, Prokop R, Kledrowetz V, Polak J. A CMOS Multiplied Input Differential Difference Amplifier: A New Active Device and Its Applications. Applied Sciences. 2017; 7(1):106. https://doi.org/10.3390/app7010106

Chicago/Turabian Style

Sotner, Roman; Jerabek, Jan; Prokop, Roman; Kledrowetz, Vilem; Polak, Josef. 2017. "A CMOS Multiplied Input Differential Difference Amplifier: A New Active Device and Its Applications" Appl. Sci. 7, no. 1: 106. https://doi.org/10.3390/app7010106

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