Paper Title
Design Of Low Power R-2r DAC For High- Speed Communications

Abstract
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 update rate for this DAC is 5GS/s. The key components used are Operational amplifier (op-amp), Binary switch and R-2R Ladder. The CMOS schematics are designed and simulated using Mentor Graphics Tool with technology TSMC 0.18um. Measurements of Integral (INL) and Differential (DNL) non linearity of the DAC design results are INL=±0.41 LSB and DNL=±0.25 LSB. Keywords: R-2R ladder, OP-AMP, Switches, INL, DNL, MOSFET