If the digital input is in some other numerical format, it can be converted to base 2 as described elsewhere in this text. Here it will be assumed that the digital input is a conventional positive base 2 integer. The D/A converter (or DAC) gives a controlled analogue output voltage or, in certain specialist applications, a controlled analogue output current or another circuit parameter such as resistance, whose value corresponds to an input digital word. WOODS MA, DPhil, in Digital Logic Design (Fourth Edition), 2002 10.4 Digital-to-analogue conversionÄigital-to-analogue conversion (abbreviated to D/A, D-A, or D-to-A conversion) is frequently required in a digital system used to control some external analogue circuitry.
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