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Active and Passive Electronic Components
Volume 17 (1994), Issue 3, Pages 179-201

Effects of Non-Idealities of OP-AMPs on Active Filters: An Analytical Study

1Department of Electronics and Communication Engg., CRSCE, Murthal Sonepat, 131039, India
2Department of Electrical Engineering, I.I.T., New Delhi 110016, India

Received 15 May 1994; Accepted 21 June 1994

Copyright © 1994 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper studies the effect of non-idealities of OP AMPs on the performance of active filters. The non-ideality is considered in terms of finite gain, finite gain-bandwidth product, slew-rate, and offset voltages. The effect of these non-idealities on active RC & switched capacitor filters is highlighted. Some ways of reduction of these effects are also suggested and relative advantages and disadvantages of various compensation techniques are discussed.