Factory trimming ensures high DC accuracy resulting in very low INL, offset, and gain errors. The converters use advanced circuit design techniques to achieve very low power dissipation (80 mW)at a high throughput rate of 3 MSPS. There are two power saving modes. NAP mode keeps reference circuitry active for quick power up and consumes 5 mW. STANDBY mode reduces power consumption to 5 μW. The AD7484 features an on-board +2.5 V reference and accommodates and external +2.5 V reference source. Also provided is an 8% over-range capability via a fifteenth bit. If the analog input range strays outside the nominal voltage, or drops to as low as 200 mV below ground, the designer can still accurately resolve the signal.