The ADS8321 is a 16-bit sampling analog-to-digital converter with guaranteed specifications over a 4.75V to 5.25V supply range. It requires very little power even when operating at the full 100kHz data rate. At lower data rates, the high speed of the device enables it to spend most of its time in the power-down mode-- the average power dissipation is less than 1mW at 10kHz data rate.