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Absolute value circuit for biological signal processing applications
Author(s)
Date Issued
May 20, 2013
Type
Conference Paper
Abstract
This paper presents a subtreshold high precision absolute value for biological signal processing applications. The circuit is constituted by a class-AB current amplifier which can handle input signals in excess of several times the bias current. The absolute value operation is based on the MOS transistors biasing in subthreshold region. Thus the proposed circuit offers ultra-low power consumption. The circuit also produces a clean output waveform. The proposed circuit is simulated using 0.5 μm CMOS process from MOSIS. The simulation results show that the circuit provides ultra-lowpower consumption and high precision rectification which can be used in biological signal processing. © 2013 IEEE.
Citation
Proceedings International Conference on Intelligent Systems Modelling and Simulation Isms, 601-604, 2013