The AD5680BRJZ-1500RL7 is a single 18-bit buffered voltage-out Digital-to-analog Converter (DAC) operates from a single 4.5 to 5.5V supply. It requires an external reference voltage to set the output range of the DAC. The part incorporates a power-on reset circuit that ensures the DAC output powers up to 0V and remains there until a valid write takes place. The low power consumption of this part in normal operation makes it ideally suited to portable battery-operated equipment. The power consumption is 1.6mW at 5V. The AD5680 on-chip precision output amplifier allows rail-to-rail output swing to be achieved. The AD5680 uses a versatile 3-wire serial interface that operates at clock rates up to 30MHz and is compatible with standard SPI?, QSPI?, MICROWIRE? and DSP interface standards.