Abstract:This paper describes a 10-b high-speed COMS DAC fabricated by 0.8-pm double-poly double-metal CMOS technology. In the DAC, a new current source called the thresholdvoltage compensated current source is used in the two-stage current array to reduce the linearity error caused by inevitable current variations of the current sources. In the two-stage weighted current array, only 32 master and 32 slave unit current sources are required. Thus silicon area and stray capacitance can be reduced significantly. Experimen… Show more
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