Title :
CMOS current-mode divider and its applications
Author :
Liu, Weihsing ; Liu, Shen-Iuan ; Wei, Shui-Ken
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
3/1/2005 12:00:00 AM
Abstract :
Compact, accurate and low-power analog CMOS circuits for current-mode division and pseudo-exponential function generation are presented, based on a new variable transresistance amplifier. Experimental results of the circuits fabricated in a 0.5-μm 2P2M n-well CMOS process show better than 0.3% total harmonic distortion. Measured power is less than 0.22 mW at 100-MHz bandwidth and ±1.5-V supply voltages.
Keywords :
CMOS analogue integrated circuits; dividing circuits; harmonic distortion; low-power electronics; operational amplifiers; 0.22 mW; 0.5 micron; 1.5 V; 100 MHz; CMOS current-mode divider; current-mode division; low-power analog CMOS circuits; pseudo-exponential function generation; total harmonic distortion; variable transresistance amplifier; Bandwidth; CMOS analog integrated circuits; CMOS process; Distortion measurement; Immune system; MOSFETs; Resistors; Signal processing; Threshold voltage; Total harmonic distortion; Divider; exponential function; transresistance;
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
DOI :
10.1109/TCSII.2004.842041
