Title :
A 1.2-V 200nW fourth order switched capacitor band pass filter for implantable cardiac pacemaker
Author :
Hammad, Mostafa ; Sharaf, Khaled ; Marzouk, Mohamed
Author_Institution :
Si-Ware Syst., Egypt
Abstract :
A low power fourth order switched-capacitor band-pass filter for a cardiac pacemaker is implemented with a standard 0.18-μm CMOS process. The band-pass filter is realized using the bi-quad architecture. A novel technique for power reduction is proposed. The sampling frequency of the designed filter is 5kHz and the pass-band is between 80Hz and 120Hz. The total power consumption is only 200nW using 1.2V power supply. The peak spurious free dynamic range (SFDR) is 72dB.
Keywords :
CMOS integrated circuits; band-pass filters; biomedical electronics; electrocardiography; power consumption; switched capacitor filters; CMOS processing; bi-quad architecture; fourth order switched capacitor band pass filter; frequency 5 kHz; frequency 80 Hz to 120 Hz; implantable cardiac pacemaker; power consumption; spurious free dynamic range; Band pass filters; Capacitors; Matched filters; Noise; Pacemakers; Switches;
Conference_Titel :
Biomedical Engineering Conference (CIBEC), 2010 5th Cairo International
Conference_Location :
Cairo
Print_ISBN :
978-1-4244-7168-3
DOI :
10.1109/CIBEC.2010.5716065
