The devices incorporate a power-on-reset (POR) circuit that ensures the DAC output powers up to zero-scale or midscale until a valid code is written to the device. These devices also contain a power-down feature, accessed through the serial interface, that reduces the current consumption of the devices to typically 0.42mA at 5V. Power consumption is typically 2.32mW at 3V, reducing to 0.68mW in power-down mode. The low power consumption and small footprint make these devices ideal for portable, battery-operated equipment.