Special Issue on the 18th IEEE International Symposium on Design and Diagnostics of Electronic Circuits and Systems (DDECS 2015); Guest Editor: Zoran StamenkovićNo Access

Fully Differential Difference Amplifier for Low-Noise and Low-Distortion Applications

Daniel Arbet

Institute of Electronics and Photonics, Slovak University of Technology in Bratislava, Ilkovičova 3, Bratislava, Slovakia

E-mail Address: daniel.arbet@stuba.sk

Corresponding author.

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Gabriel Nagy

Institute of Electronics and Photonics, Slovak University of Technology in Bratislava, Ilkovičova 3, Bratislava, Slovakia

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Martin Kováč

Institute of Electronics and Photonics, Slovak University of Technology in Bratislava, Ilkovičova 3, Bratislava, Slovakia

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, and

Viera Stopjaková

Institute of Electronics and Photonics, Slovak University of Technology in Bratislava, Ilkovičova 3, Bratislava, Slovakia

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https://doi.org/10.1142/S0218126616400193Cited by:5 (Source: Crossref)

Abstract

In this paper, a fully differential difference amplifier (FDDA) designed in 0.35 $μ$ $μ$ m CMOS technology is presented. The proposed amplifier reaches high dynamic range (DR) and low input referred noise. Comparison of noise performance of the proposed FDDA to an ordinary differential amplifier has been performed. Achieved results prove that the developed amplifier circuit can be advantageously used in applications that require a fully differential signal. Then, simulation results have been verified by the measurement of prototyped chips. In our work, the proposed amplifier was experimentally employed in the analog frontend of the readout interface (RI) for a Micro-Electro-Mechanical-Systems (MEMS) capacitive microphone.

Keywords:

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