Design and Implementation of Current-Mode Multiplier/Divider Circuits in Analog Processing

This project presents two original implementations of improved accuracy current-mode multiplier and divider circuits. Besides the advantage of their simplicity, these original multiplier and divider structures present the advantage of very small linearity errors that can be obtained as a result of the proposed design techniques (0.9% and 0.75%, respectively, for an extended range of the input currents). The original current mode multiplier and divider circuits permit a facile reconfiguration, the presented structures representing the functional basis for implementing complex function synthesizer circuits. The proposed computational structures are designed for implementing in 0.18-μm Complex Metal Oxide Semiconductor technology ( i.e., CMOS Technology), with a low-voltage operation (a supply voltage of 1.2 V). The circuits’ power consumptions are 60 and 75 μW, respectively, while their frequency bandwidths are 59.7 and 79.6 MHz, respectively.