A Compact Low Voltage CMOS Four-Quadrant Analog Multiplier

Abstract-In this paper, a compact low-voltage CMOS four-quadrant analog multiplier is proposed. The proposed circuit is obtained by rearranging circuit topology of a recently reported multiplier which is unpractical since the circuit topology itself needs an ideal voltage reference to form a multiplication function. By doing so, the ideal voltage reference is no longer required leading to achieve a new multiplier circuit with real compactness. Simulated results using PSPICE for 0.35 m CMOS process show that main performances of the proposed multiplier, including linearity, bandwidth and power consumption, are successfully improved. I