Title
A Low-Power Low-Voltage Amplifier for Heart Rate Sensor
Abstract
The demand for health-monitoring products is increasing worldwide. Low-power and low-voltage attributes are important concerns that need to be addressed in circuits used for personal health-monitoring applications, to achieve a long battery life. In this paper, a low-power low-voltage OTA used in a heart rate sensor is presented in a MOS-bipolar pseudo-resistor configuration. Super source degeneration, bulk driving and adjustable transconductance techniques are applied to achieve low power and low-voltage criteria. The OTA consumes current of 700 nA from a 1V single supply. As per the simulations, the circuit achieves 22kHz bandwidth (from 50mHz to 22kHz) at a closed loop gain of 14dB while driving a load capacitance of 80pF. The circuit is implemented in 0.18mum CMOS technology
Year
DOI
Venue
2006
10.1109/APCCAS.2006.342518
APCCAS
Keywords
DocType
ISBN
80 pf,biosensors,cmos integrated circuits,super source degeneration,low-voltage,1 v,cardiology,14 db,operational transconductance amplifier,operational amplifiers,patient monitoring,low-power electronics,bulk driving,low-power,low-power low-voltage amplifier,cmos technology,personal health-monitoring applications,700 na,mos-bipolar pseudoresistor configuration,heart rate sensor,0.050 to 22 khz,adjustable transconductance technique,22 khz,biomedical electronics,battery life,0.18 micron,low voltage,low power electronics
Conference
1-4244-0387-1
Citations 
PageRank 
References 
3
0.71
0
Authors
2
Name
Order
Citations
PageRank
Gin Kooi Lim131.05
T. Hui Teo293.07