The DAC082S085CIMM is a full-featured general purpose DUAL 8-bit voltage-output Digital-to-analog Converter (DAC) operates from a single 2.7 to 5.5V supply and consumes 0.6mW at 3V and 1.6mW at 5V. The on-chip output amplifier allows rail-to-rail output swing and the three wire serial interface operates at clock rates up to 40MHz over the entire supply voltage range. The reference for the DAC082S085 serves both channels and can vary in voltage between 1V and VA, providing the widest possible output dynamic range. The DAC082S085 has a 16-bit input shift register that controls the outputs to be updated, the mode of operation, the power-down condition and the binary input data. Both outputs can be updated simultaneously or individually depending on the setting of the two modes of operation bits. A power-on reset circuit ensures that the DAC output powers up to zero volts and remains there until there is a valid write to the device.