The multiplexer used for digital applications, also called digital multiplexer, is a circuit with many input but only one output. For digital application, they are built from standard logic gates. For analog application, multiplexer are built using relays and transistor switches. Multiplexers can handle two type of data i.e., analog and digital. Therefore, multiplexer is used to perform high speed switching are constructed of electronic components. A mechanical switch cannot perform this task efficiently. ![]() However, circuits that operate at high speed require the multiplexer to be automatically selected. Multi-position switches are widely used in many electronics circuits. A simple example of an non-electronic circuit of a multiplexer is a single pole multi-position switch. ![]() A multiplexer is a circuit used to select and route any one of the several input signals to a single output.
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