A new public-domain program for mixed-signal simulation

A new public-domain simulator for mixed-signal circuits is described. The new simulator is very versatile, allowing the user to define new elements easily. The procedure adopted for simulation of circuits with both digital and analog elements is briefly discussed. Several simulation examples are presented to demonstrate the applications of the simulator. The simulator is expected to be particularly useful for engineering teachers in developing countries where access to expensive commercial mixed-signal simulators may be difficult.