Low-power readout IC with high dynamic range for MCM-based noise dosimeter

Author

Stopjakova, V. ; Nagy, G. ; Arbet, D. ; Majer, Libor ; Gyepes, G.

Author_Institution

Inst. of Electron. & Photonics, Slovak Univ. of Technol., Bratislava, Slovakia

fYear

2013

Firstpage

1

Lastpage

4

Abstract

This paper deals with a new readout interface of MEMS Capacitive Microphone (MCM) by presenting its general design as an application-specific integrated circuit (ASIC). The proposed frontend has been developed as an integrated part of the MCM microphone ASIC in order to be used in a noise dosimeter applicable in very harsh environment, e.g. minery. Therefore, the main attention has been paid to the high dynamic range of the developed readout interface and its low-power feature. The readout circuit was designed in 0.35 μm CMOS technology, with the power supply of 2.5 V. Finally, the achieved results are discussed and compared to other works.

Keywords

CMOS integrated circuits; application specific integrated circuits; dosimeters; low-power electronics; micromechanical devices; microphones; readout electronics; ASIC; CMOS; MCM-based noise dosimeter; MEMS capacitive microphone; application-specific integrated circuit; harsh environment; high dynamic range; low-power readout IC; size 0.35 mum; voltage 2.5 V; Application specific integrated circuits; CMOS integrated circuits; Capacitance; Dynamic range; Micromechanical devices; Microphones; Noise; MEMS Capacitive Microphone; analog frontend; dosimeter; readout interface;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Electronics (AE), 2013 International Conference on

Conference_Location

Pilsen

ISSN

1803-7232

Print_ISBN

978-80-261-0166-6

Type

conf

Filename

6636530