The SP85XX Series are complete 12-bit sampling A/D converters using stateoftheart CMOS structures. They contain a complete 12bit successive approximation A/D converter with internal sample/hold, reference, clock, digital interface for microprocessor control, and threestate output drivers. Power dissipation is only 90mW. AC and DC performance are completely specified. Sampling/conversion rates of 3s, 5s and 10s are offered.