Title :
Four-quadrant CMOS current-mode multiplier independent of device parameters
Author :
Tanno, Koichi ; Ishizuka, Okihiko ; Tang, Zheng
Author_Institution :
Dept. of Electr. & Electron. Eng., Miyazaki Univ., Japan
fDate :
5/1/2000 12:00:00 AM
Abstract :
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
Keywords :
CMOS analogue integrated circuits; analogue multipliers; current-mode circuits; integrated circuit design; large scale integration; 0.93 mW; 22.4 MHz; CMOS current-mode multiplier; MOS transistor; MOSFET square-law characteristics; device parameters independence; four-quadrant analog multiplier; saturation region; Bandwidth; CMOS integrated circuits; Circuit simulation; Circuit theory; Energy consumption; Large scale integration; Linearity; MOSFETs; Threshold voltage; Transconductance;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
