Increasing common-mode rejection ratio based on the voltage follower
Pavel F. Baranov, Edvard I. Tsimbalist, Valeriy N. Borikov, J. Pisarenko · 2016
The paper presents certain procedures oriented towards the decrease of the uncertainty of measuring the small differential signal against a large common-mode signal. The technical implementation of the tracking symmetrical power supply is suggested for the instrumentation amplifier based on the voltage follower that allows increasing the common mode rejection ratio and input impedance and decreasing the cable capacitance.