DESCRIPTION…

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

■ 3µs, 5µs or 10µs Sample/Conversion Time

■ Standard ±10V and ±5V Input

■ No Missing Codes Over Temperature

■ AC Performance Over Temperature

71.5dB Signal–to–Noise Ratio at Nyquist 85dB Spurious–free Dynamic Range at 49kHz

–81dB Total Harmonic Distortion at 49kHz

■ Internal Sample/Hold, Reference, Clock, and 3-State Outputs

■ Low Power Dissipation: 90mW

■ 28–Pin Narrow PDIP and SOIC