Title :
A novel low-voltage operational transconductance amplifier and its applications
Author :
Zhang, Xuguang ; Maundy, Brent J. ; El-Masry, Ezz I. ; Finvers, Ivars G.
Author_Institution :
Dept. of Electr. & Comput. Eng., Dalhousie Univ., Halifax, NS, Canada
Abstract :
A new CMOS realization of an operational transconductance amplifier is presented. It is based on the cross-coupled configuration and is biased by the common-mode voltage. The circuit has only two transistors between the supply line and ground which makes it suitable for low-voltage applications. Simulation results show that the circuit is highly linear and tunable over a wide range bias voltage. The circuit is used to realize 2nd generation current conveyor (CCII) and differential current conveyor (DCC) that have excellent performance
Keywords :
CMOS analogue integrated circuits; current conveyors; low-power electronics; operational amplifiers; CMOS; common-mode voltage bias; cross-coupled configuration; differential current conveyor; low-voltage operational transconductance amplifier; second-generation current conveyor; wide range bias voltage; Application software; Application specific integrated circuits; CMOS integrated circuits; Circuit simulation; MOSFETs; Mirrors; Operational amplifiers; Threshold voltage; Transconductance; Tunable circuits and devices;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.856415
