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Active and Passive Electronic Components
Volume 2013, Article ID 258970, 6 pages
Research Article

A Novel Pseudo-PMOS Integrated ISFET Device for Water Quality Monitoring

Department of Electronics and Communication Engineering, Jamia Millia Islamia, New Delhi 110025, India

Received 28 February 2013; Accepted 25 August 2013

Academic Editor: Gerard Ghibaudo

Copyright © 2013 Pawan Whig and Syed Naseem Ahmad. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The paper presents a performance analysis of novel CMOS Integrated pseudo-PMOS ISFET (PP-ISFET) having zero static power dissipation. The main focus is on simulation of power and performance analysis along with the comparison with existing devices, which is used for water quality monitoring. The conventional devices, generally used, consume high power and are not stable for long term monitoring. The conventional device has the drawbacks of low value of slew rate, high power consumption, and nonlinear characteristics, but in this novel design, due to zero static power, less load capacitance on input signals, faster switching, fewer transistors, and higher circuit density, the device exhibits a better slew rate and piecewise linear characteristics and is seen consuming low power of the order of 30 mW. The proposed circuit reduces total power consumption per cycle, increases the speed of operation, is fairly linear, and is simple to implement.