Title :
Design of pseudo-logarithmic function using operational transconductance amplifier
Author :
Bhanja, Mousumi ; Chakraborty, Rupak ; Ray, Bonnie
Author_Institution :
Dept. of Electron. & Tele-Commun. Eng., Bengal Eng. & Sci. Univ., Howrah, India
Abstract :
In this paper, authors propose an adept design methodology of pseudo-logarithmic function as a network of operational transconductance amplifier(OTA), a current mode device. It demonstrates an inherent tunable and programmable property of OTA to improve the performance of the logarithmic function. The performance of the circuits have been verified with SPICE simulation. Those results show the improved performance over the existing methods.
Keywords :
circuit simulation; circuit tuning; current-mode circuits; network synthesis; operational amplifiers; programmable circuits; OTA; SPICE simulation; current mode device; operational transconductance amplifier; programmable property; pseudologarithmic function design; Fractional power; OTA; Pseudo-logarithmic function; Series expansion; Taylor´s series;
Conference_Titel :
Electrical & Computer Engineering (ICECE), 2012 7th International Conference on
Conference_Location :
Dhaka
Print_ISBN :
978-1-4673-1434-3
DOI :
10.1109/ICECE.2012.6471529
