Universal Multiplexer

18 EE February 1988 UNIVERSAL MULTIPLEXER A fast, analogue and digital compatible, 16-channel multiplexer with provisions for manual and computer control. The circuit is offered as a design idea, and should find applications in test, measure- ment and instrumentation equipment. The circuit described here is essentially an electronic 16-way rotary switch. It is composed of 2 functional sections: one takes care of the connection between the selected input channel and the "pole" of the 16-way switch, i.e., the output of the circuit, while the other provides the con- trol signals necessary to select a par- ticular channel from the 16 available. The control section accepts manual as well as computer or automatically gener- ated channel selection codes. Appli- cations of the universal multiplexer in- clude quasi-simultaneous temperature measurement in a network of sensors mounted in different locations, con- trolled capturing of signals from strain gauges, light sensors or transducers, ...