Four-quadrant CMOS current-mode multiplier independent of device parameters

Autor: Zheng Tang, Koichi Tanno, Okihiko Ishizuka
Rok vydání: 2000
Předmět:
Zdroj: IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing. 47:473-477
ISSN: 1057-7130
DOI: 10.1109/82.842116
Popis: In this work, we present a four-quadrant CMOS current-mode multiplier based on the square-law characteristics of an MOS transistor operated in the saturation region. One advantage of this multiplier is that the output current is independent of MOS transistor device parameters; another, that the input resistance is independent of the input current. Simulations of the multiplier demonstrate a linearity error of 1.22%, a THD of 1.54%, a -3 dB bandwidth of 22.4 MHz, and a maximum power consumption of 0.93 mW. Operation of the multiplier was also confirmed through an experiment using CMOS 4007 IC's.
Databáze: OpenAIRE