What is digital-to-analog converters?

A digital-to-analog converter (DAC) is a device that transforms a digital signal (usually a binary number) into an analog signal (current, voltage, or electric charge). DACs are widely used in audio equipment (e.g., CD players, smartphones) to convert digital audio files into analog audio signals that can be amplified and played through speakers. They are also used in motor control, signal generation, and instrumentation.