Design of an advanced signal conditioning unit for sensor with reduced off-the-shelf components

In this paper we presents a signal conditioning unit working at single supply. The unit consists of high pass filter, buffer and a cascaded stage of low pass filter with amplifier. The order of high pass filter and low pass filter was first and second respectively. The unit was realized by using minimum off-the-shelf components through effective sizing rules proposed in this paper. Software simulation was done to ascertain the working of conditioning unit according to the specifications. A hardware prototype has been made to demonstrate the working of the unit. © 2012 IEEE.