| Techniques infobox | |
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| parts | Resistors, Capacitors, Inductors, Printed circuit boards, Solder |
| techniques | Soldering |
| tools | Soldering irons |
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| reversible | true |
In electronics, a digital-to-analog converter (DAC, D/A, D2A, or D-to-A) is a system that converts a digital signal into an analog signal. An analog-to-digital converter (ADC) performs the reverse function.
There are several DAC architectures; the suitability of a DAC for a particular application is determined by figures of merit including: resolution, maximum sampling frequency and others. Digital-to-analog conversion can degrade a signal, so a DAC should be specified that has insignificant errors in terms of the application.