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High-Speed Digital-to-Analog Converters (DACs)

The lynchpin in future mixer-less radio transmitters is a high-bandwidth digital-to-analog converter. This allows for the implementation of the whole transmitter chain on a single reconfigurable device that supports simultaneous multimode/multiband operation. We have proposed a new class of interleaved RF-DACs, and for the first time in the literature introduced the concept of hold-interleaving in DACs [1], [2]. This work was featured one among the Top 5 articles in the July 2010 issue of the IET Electronics Letters and was also awarded the 2010 TSMC Outstanding Student Research Award in the circuits category .

We also aim to develop a holistic study and understanding of the micro and macro-level challenges in DAC design, both from the perspective of technology and physical realization. Preliminary results have been presented at the Plenary Talk in the 2012 Compound Semiconductor IC Symposium (CSICS), and have also been published in a book chapter.

Students Involved: S. Balasubramanian, L. Duncan, Ahmed Naguib