Title :
A high-Q temperature insensitive bandpass filter using the operational amplifier pole
Author :
Rao, K. Radhakrishna ; Srinivasan, S.
Author_Institution :
Indian Institute of Technology, Madras, India
Abstract :
A bandpass filter using only two resistors and two operational amplifiers is suggested. The circuit has a Q equal to the ratio of the ressistors. While Q and gain are insensitive to temperature variations, the variations in center frequency is minimized uing a compensation scheme.
Keywords :
Active filters; Attenuators; Band pass filters; Capacitors; Circuit optimization; Frequency; Operational amplifiers; Resistors; Temperature; Voltage;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1974.9692
