Design constraints of high performance chopping signal conditioning circuits for integrated sensors

Author

Vejdani, Parisa ; Bouchami, Anoir ; Nabki, Frederic

Author_Institution

CoFaMic Res. Center, Univ. du Quebec a Montreal (UQAM), Montreal, QC, Canada

fYear

2014

Firstpage

690

Lastpage

693

Abstract

The design of low-noise low-power dual chopper amplifiers (DCAs) for sensors is investigated. The DCA minimizes the power consumption and noise by chopping the signals at two frequencies. The functionality of the single and dual chopper amplifiers, including noise and optimized power consumption are presented. DCA performance with respect to power, noise and power-noise product is compared with that of the single chopper amplifier. A low-noise low-power DCA is designed and simulated in 0.13 μm CMOS technology with a supply of 1.2V to illustrate the design methodology.

Keywords

CMOS integrated circuits; amplifiers; choppers (circuits); integrated circuit design; integrated circuit noise; low-power electronics; sensors; signal conditioning circuits; CMOS technology; DCA; chopping signal conditioning circuit; integrated sensor; low-noise low-power dual chopper amplifier; power consumption; power-noise product; size 0.13 mum; voltage 1.2 V; Capacitance; Choppers (circuits); Gain; Noise; Power demand; Power harmonic filters; Sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems (ICECS), 2014 21st IEEE International Conference on

Type

conf

DOI

10.1109/ICECS.2014.7050079

Filename

7050079