Title :
All CMOS exponential function generator with tunable input and output range
Author :
Duong, Quoc-Hoang ; Nguyen, Trung-Kien ; Lee, Sang-Gug
Author_Institution :
Inf. & Commun. Univ., Daejeon
Abstract :
An ultra low-voltage low-power all CMOS exponential function generator is proposed, with tunable input and output ranges. The proposed circuit uses "pre-distortion" technique to extend the dB linear output range. The Taylor series expansion is used for realizing the exponential characteristic. The simulations, based on a 0.25 mum CMOS process, show a 25 dB linear output current range at 1.25V supply voltage. The average power consumption is less than 0.1 mW
Keywords :
CMOS integrated circuits; function generators; low-power electronics; 0.25 micron; 1.25 V; Taylor series expansion; all CMOS exponential function generator; pre-distortion technique; CMOS process; Character generation; Circuit simulation; Energy consumption; Equations; Linearity; Signal generators; Taylor series; Tunable circuits and devices; Voltage;
Conference_Titel :
Circuits and Systems, 2003 IEEE 46th Midwest Symposium on
Conference_Location :
Cairo
Print_ISBN :
0-7803-8294-3
DOI :
10.1109/MWSCAS.2003.1562265
