Low-noise micro-power chopper amplifier for MEMS gas sensor

• Autorzy: Nebhen J. , Meillere S. , Masmoudi M. , Seguin J.-L. , Barthelemy H. , Aguir K.
• Języki publikacji: EN

Abstrakty

EN

In this paper, a low-noise, low-power and low voltage Chopper Stabilized CMOS Amplifier (CHS-A) is presented and simulated using transistor model parameters of the AMS 0.35 μm CMOS process. This CHS-A is dedicated to high resistive gas sensor detection. The proposed CHS-A using Chopper Stabilization technique (CHS) exhibits an equivalent input referred noise of only 0.194 nV/√Hz for a chopping frequency of 210 kHz under ۫.25 V supply voltage and 26.5 dB voltage gain. The inband PSRR is above 90 and the CMRK exceeds 120 dB. At the same simulation condition, the total power consumption is 5 μW only.

Słowa kluczowe

EN

gas sensor; low-noise; low-power; chopper modulation; analog integrated circuits

PL

czujnik gazu; niskie szumy; analogowy układ scalony

• Wydawca: Lodz University of Technology. Department of Microelectronics and Computer Science
• Czasopismo: International Journal of Microelectronics and Computer Science
• Rocznik: 2011
• Tom: Vol. 2, nr 4
• Strony: 146--155
• Opis fizyczny: Bibliogr. 23 poz.

Twórcy

autor

Nebhen J.

autor

Meillere S.

autor

Masmoudi M.

autor

Seguin J.-L.

autor

Barthelemy H.

autor

Aguir K.

• Aix-Marseille University, IM2NP-CNRS-UMR 6242, Avenue Escadrille Normandie Niemen - Case 152, 13397 Marseille Cedex 20 France,

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