Analogue Systems

Posted in Instruments by admin on January 3, 2010

DIGITAL SYSTEMS QUESTION. Explain the role and operation of a tri-state device in analogue data transmission?

What is a tri state device? Where is it used? What is the role of it? What is the operation of it? and What is analogue data transmission?

If you can answer any of these questions it would be a big help.

Thanks

A tri-state device is a digital device that has a high-impedence (Hi-Z) output state in addition to it's HIGH and LOW states. The high impedence state essentially disconnects the output from the circuit. This allow the outputs of multiple devices to be connect a single point, so long as only one of the devices is enabled at any given point in time.

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