Title :
A micropower low-noise monolithic instrumentation amplifier for medical purposes
Author :
Steyaert, M.S.J. ; Sansen, Willy M. C.
fDate :
12/1/1987 12:00:00 AM
Abstract :
A CMOS low-power low-noise monolithic instrumentation amplifier (IA) is described. The power drain is reduced by use of current feedback and by use of only single-stage operational transconductance amplifiers in the low-frequency loop. The bandwidth of the IA is designed for medical purposes (0.5-500 Hz) and it can produce variable gains of 14/20/26/40 dB, which are set by control software.
Keywords :
Biomedical electronics; CMOS integrated circuits; Feedback; Instrumentation amplifiers; Linear integrated circuits; biomedical electronics; feedback; instrumentation amplifiers; linear integrated circuits; Bandwidth; Circuit noise; Cutoff frequency; Feedback loop; Instruments; Low-noise amplifiers; Operational amplifiers; Resistors; Transconductance; Voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.1987.1052869
