Abstract
The paper outlines a method for the simulation of third order linear systems with only one operational amplifier.
A particular class of the general third order systems, that is, systems with a lead and a time constant, is considered in this paper.
A basic circuit consisting of one operational amplifier, three capacitors and six resistors is presented. The circuit is analysed and the conditions of physical realizability discussed and obtained. The design formulae and procedure are also given.