The AD7663 is a 16-bit, 250 kSPS, charge redistribuTIon SAR,analog-to-digital converter that operates from a single 5 V powersupply. It contains a high speed 16-bit sampling ADC, a resistorinput scaler that allows various input ranges, an internal conversionclock, error correcTIon circuits, and both serial and parallelsystem interface ports.