Title :
dB-linear V-I converter with tunable input and output range
Author :
Duong, Quoc-Hoang ; Nguyen, Trung-Kien ; Lee, Sang-Gug
Author_Institution :
Dept. of Inf. & Commun. Daejeon Univ.
Abstract :
This paper proposed an ultra low-voltage low-power all CMOS exponential V-I converter with tunable input and output ranges. The Taylor series expansion is used for realizing the exponential characteristic. The simulations, based on a 0.25 mum CMOS process, show a 20 dB linear output current range and a 15 dB-linear range with the linearity error less than plusmn 0.5 dB at 1.25V supply voltage. The average power consumption is less than 80 muW
Keywords :
CMOS integrated circuits; convertors; current-mode circuits; low-power electronics; 0.25 micron; 1.25 V; CMOS exponential V-I converter; Taylor series expansion; dB-linear V-I converter; tunable input range; tunable output range; CMOS process; Character generation; Circuit simulation; Energy consumption; Equations; Linearity; Taylor series; Tunable circuits and devices; Very large scale integration; 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.2003.1562253
