Chopper-stabilized instrumentation amplifier with reconfigurable inverting/non-inverting modes

Author

Tao Wang ; Yu-Pin Hsu

Author_Institution

Dept. of Electron. Eng., Chang Gung Univ., Taoyuan, Taiwan

fYear

2014

fDate

7-10 May 2014

Firstpage

1

Lastpage

2

Abstract

A chopper-stabilized instrumentation amplifier (IA) with reconfigurable inverting and non-inverting modes is realized in CMOS 0.35um technology. A resistive feedback network is proposed to increase gain by lowering the resistance, which eliminates the conventional need for high resistance values. The voltage gain ranges from 19-35 dB and 25-41dB in inverting and non-inverting modes, respectively. The input referred noise is 420n V_rms/ √HZin inverting mode and 260nV_rms/ √HZ in non-inverting mode. The total power consumption is 22 uW the chip size is 0.66 mm².

Keywords

CMOS analogue integrated circuits; choppers (circuits); circuit stability; feedback amplifiers; instrumentation amplifiers; CMOS technology; IA; chopper-stabilized instrumentation amplifier; gain 19 dB to 35 dB; gain 25 dB to 41 dB; power 22 muW; reconfigurable inverting-noninverting modes; resistive feedback network; size 0.35 mum; CMOS integrated circuits; Choppers (circuits); Gain; Gain measurement; Immune system; Instruments; Noise; CMOS; IA; chopper;

fLanguage

English

Publisher

ieee

Conference_Titel

Next-Generation Electronics (ISNE), 2014 International Symposium on

Conference_Location

Kwei-Shan

Type

conf

DOI

10.1109/ISNE.2014.6839341

Filename

6839341