The AD5641 is a single, 14-bit, buffered, voltage-out DAC that operates from a 2.7 V to 5.5 V supply and draws a maximum of 100 µA at 5 V. The device features guaranteed monotonicity, power-down, low power serial interface, on-chip output buffer amplifier, rail-to-rail operation, and SYNC interrupt facility. It is widely used in voltage level setting, portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, and programmable attenuators.