Multiplex system for measured analogue values - with several multiplexers coupled to common A=D converter

摘要

The multiplex system for sampling and forwarding measured analogue values to a data processor uses a number of multiplexers (M1...Mn) coupled via a common output line (A) to an A/D converter (AD). Each multiplexer (M1...Mn) has a switch for selectively coupling to the latter output line (A). The A/D converter (AD) is pref. integrated in a further multiplexer (M-AD) with one input coupled to the common output line and activated simultaneously with the operation of one of the switches.