Scheduled System Maintenance:
Some services will be unavailable Sunday, March 29th through Monday, March 30th. We apologize for the inconvenience.
By Topic

Active R ladders: High frequency, high order, low sensitivity active R filters without external capacitors

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
1 Author(s)

Active R filter techniques which make use of the pole of an operational amplifier to produce the state variables without the need for inductors or external capacitors may be employed to simulate all of the elements of both singly and doubly terminated reactance ladders. Although the design techniques are very simple and follow directly from passive synthesis techniques, the resulting filters offer high-order circuits with low sensitivity. However, the primary advantage of these active R filters is the ability to design filters which operate in a considerably higher frequency range than obtainable with standard active RC designs. While still primarily of research interest due to dynamic range problems and temperature sensitivity problems, active R ladders may be adequately compensated to allow many applications in specialized signal processing environments.

Published in:

Circuits and Systems, IEEE Transactions on  (Volume:25 ,  Issue: 12 )