Abstract
In this paper, a low-power four-quadrant current multiplier based on the electronically and linearly tunable CMOS transconductors (EOTAs) is presented. The design technique is realized by using only two EOTAs as active circuit elements. The proposed current multiplier can operate for four quadrants with wide input dynamic range. The performances of the proposed current multiplier are tested on PSPICE simulation on TSMC 0.18μm CMOS technology with a power supply of ±0.5V. The simulation results show that the circuit has a linearity error of about 0.1% for input range of ±100μΑ, a THD of about 0.7% at 10kHz, the power consumption of about 2.4mW and −3dB bandwidth of 1.3GHz is achieved.
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