Title :
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
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 Vrms/ √HZin inverting mode and 260nVrms/ √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;
Conference_Titel :
Next-Generation Electronics (ISNE), 2014 International Symposium on
Conference_Location :
Kwei-Shan
DOI :
10.1109/ISNE.2014.6839341
