A Novel High Precision Low Power Current-Mode Multiplier

Abstract

In this paper a novel current-mode analog multiplier based on translinear principle is presented. The transistors in the translinear loop all operate in the strong inversion region. The circuit consists of a current-mode square root circuit and a current-mode square/divider circuit. The circuit has favorable precision, wide dynamic range and is insensitive to variations in temperature and processing. The simulated results show that the multiplier has a bandwidth of 1 MHz. The total harmonic distortion of the multiplier is less than 1%. It is suitable for a wide range of analog signal processing application. Due to the low power, scalability and modularity, it can be also easily integrated in massive parallel systems.