HIGH SPEED, LOW POWER CMOS D/A CONVERTER FOR WAVE SYNTHESIS IN NETWORK

摘要

A high speed low power digital-to-analog (D/A) converter (DAC) includes a plurality of least significant bit (LSB) cells that collectively define a total output of the DAC. Each LSB cell includes a differential current driver that has reduced capacitive loading due to a cascode structure of the current driver wherein transistors are biased to desired levels and current sources are switched on and off to control the differential output signal.