Title :
A novel "Follow the master" filter
Author :
Rao, K. Radhakrishna ; Sethuraman, V. ; Neelakantan, P.K.
Author_Institution :
Indian Institute of Technology, Madras, India
Abstract :
Active-R filters have their pole-frequencies directly dependent on the gain-bandwidth (GB) product of the operational amplifiers used. A novel technique, by which the pole-frequencies of the system are made to depend on a stable reference-frequency times the ratio of the GB products, rather than their absolute values, is given.
Keywords :
Attenuators; Detectors; Frequency; Low pass filters; Monolithic integrated circuits; Operational amplifiers; Phase detection; Temperature sensors; Thermistors; Voltage;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1977.10816
