  An instrumentation amplifier (InAmp) is an electronic device used in many
applications, where test and measuring accuracy is required. However, one of
the drawbacks of an InAmp is limited operation gain range. In this paper, we
investigate the possibility of replacing CMOS transistors in InAmp with
memristive devices. The application of memristors in CMOS instrumentation
amplifier design has lead to reduction of on-chip area and power consumption,
comparing to the original design. The memristor based implementation of InAmp
design has an improved gain. The advantages of memristor application are shown,
and DC and operation gain range are discussed in this paper. Furthermore,
variability analysis and performance variation with respect to the temperature
variation is provided. In addition, the noise sensitivity analysis is
performed. Moreover, varying values of resistance levels of memristors, the
operation gain range, gain accuracy as well as a the noise reduction can be
improved.
