期刊名称：International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN：2278-1323
出版年度：2013
卷号：2
期号：11
页码：2951-2955
出版社：Shri Pannalal Research Institute of Technolgy
摘要：The objective of the paper is to propose the Noise model of a three op-amp instrumentation amplifier focusing the noise awareness features to be considered when designing the instrumentation amplifier to sense and amplify low voltages which finds delicate application like biomedical instrumentation. Change of gain and CMRR (Common mode rejection ratio) due to unexpected reaction from the environment and tolerance value of the externally connected components are considered and discussed in detail. Impact factors like temperature and gain in Amplification of noise are also taken as factors while calculating Total Noise and tried to simulate with Cadence tool for Analog and Mixed signal analysis. This paper is intended as a step to analyze the noise there by incorporate suitable safety measurements to optimize the accuracy of Output while using the instrumentation amplifier as signal conditioning circuits in sensitive signal measurements in future.
