A digital-to-analog converter (DAC) is a device that converts digital signals into analog signals, allowing them to be transmitted over long distances without significant signal degradation. In electronic circuits, digital information is often represented as a series of 1s and 0s, which can be difficult to transmit or process directly due to noise and interference issues. A bit digital-to-analog converter resolves this issue by converting the digital signals into analog waveforms that can be transmitted over wires without significant signal loss. This process involves taking a series of binary digits (bits) representing an analog signal and converting them into a continuous, smooth waveform that mirrors the original signal.