A dual 3.4V bitstream continuous calibration CMOS D/A converter with 110 dB dynamic range

A new generation D/A converter is presented, combining a true 18-bit dynamic range with easy application. This is achieved by introducing oversampling to 96 f/sub s/, digital filtering and noise-shaping. The actual digital-to-analogue conversion is done by a continuously calibrated current D/A converter on the same die. System and circuit design are both optimised to avoid degradation of the analogue performance by digital circuit noise.<
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