Design of Low Power R-2R DAC for High-Speed Communications

Digital-to-Analog Converter (DAC) is a device used to convert the input signal that is in digital form into an output signal in the analog form (voltage). The resulting DAC output voltage is proportional with the digital value applied to the DAC. In this paper, an analysis of 6-bit R-2R DAC is proposed. The DAC is aimed at low power dissipation, using 6-bit resolution. The DAC is used for high speed applications. The sampling rate for this DAC is 5GS/s. The key components used are operational amplifier (op-amp), binary switch and R-2R ladder.

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