The DACx1416 includes a power-on reset function. After the supplies have been established, a POR event is issued. The POR causes all registers to initialize to their default values and communication with the device is valid only after a 1-ms power-on-reset delay. After a POR event, the device is set in power-down mode where all DAC channels and internal reference are powered down and the DAC output pins are connected to ground through a 10-kΩ internal resistor.