Title :
A low power low noise capacitively coupled chopper instrumentation amplifier in 130 nm CMOS for portable biopotential acquisiton systems
Author :
Mohamed, Ahmed N. ; Ahmed, Hesham N. ; Elkhatib, M. ; Shehata, K.A.
Author_Institution :
Electron. Eng. Dept., Mil. Tech. Coll., Cairo, Egypt
Abstract :
In this paper, a low-power, low-noise chopper stabilized CMOS differential difference instrumentation amplifier (CHDDA) for portable biopotential acquisition applications is presented. The proposed 130 nm CMOS chopper stabilized amplifier has 3.2 μW power dissipation, thermal noise floor of 10 nV/rtHz and corner frequency in the vicinity of 10 Hz with 1 V supply voltage which performs adequately well in measuring biopotential signals.
Keywords :
CMOS integrated circuits; bioelectric potentials; biomedical electronics; biomedical equipment; choppers (circuits); differential amplifiers; flicker noise; thermal noise; CHDDA; CMOS chopper stabilized amplifier; biopotential signal measurement; capacitively coupled chopper instrumentation amplifier; corner frequency; differential difference instrumentation amplifier; frequency 10 Hz; portable biopotential acquisition systems; power 3.2 muW; power dissipation; size 130 nm; supply voltage; thermal noise floor; voltage 1 V; Band-pass filters; CMOS integrated circuits; Choppers (circuits); Frequency measurement; Instruments; Noise; Transistors; capacitively coupled instrumentation amplifier; chopper amplifier; flicker noise;
Conference_Titel :
Computer Medical Applications (ICCMA), 2013 International Conference on
Conference_Location :
Sousse
Print_ISBN :
978-1-4673-5213-0
DOI :
10.1109/ICCMA.2013.6506168
