CMOS Instrumentation Amplifier with Offset Cancellation Circuitry for Biomedical Application

Abstract:- This paper presents the design and development of a CMOS Instrumentation Amplifier for biomedical application. This design manages to achieve 101dB gain, PSRR> 102dB and 91dB CMRR. The final circuit consumes total of 0.318µWatts power at 1.8V supply voltage and possesses die size of 9.6nm2 area. It also has a full CMOS implementation of offset cancellation circuitry, among the first of its kind. Comparison with more complex work shows improved or comparable results. Key-Words:- instrumentation amplifier, biomedical application, CMOS