State Key Laboratory of Analog and Mixed-Signal VLSI: AMSV Distinguished Lecture by Prof. Nan Sun

The University Workshop on “Emerging Data Conversion Architectures” will take place as follows:

Date: 27 Jun 2017 (Tue)

Time: 16:00 - 17:00

Venue: Lecture Hall, G013, N21, University of Macau


The speaker is:

Prof. Nan Sun
Associate Professor, Department of Electrical and Computer Engineering at the University Texas at Austin


The Lecture is:

“Emerging Data Conversion Architectures”



In this talk, I will present several unconventional data conversion architectures. First, I will talk about how we can make use of noise, which is usually deemed as an undesirable thing, to estimate the conversion residue and increase the SNR of a SAR ADC. It is an interesting example of stochastic resonance, in which the presence of noise can lead to not SNR degradation but SNR enhancement. Second, I will talk about how we can perform data conversion below the Nyquist rate by exploiting the sparsity of the input signal. I will show two example compressive sensing ADCs and how the effective ADC conversion rate can be reduced by 4 times but without losing information. Third, I will discuss hybrid ADC architectures, especially the combination of SAR and delta-sigma ADC. This novel noise-shaping SAR ADC can achieve high power efficiency and high resolution but without the need for OTA based integrator. Last but not least, I will show our groups’ research on time/phase-domain delta-sigma ADCs that use simple logic gates for integration and quantization. They can not only achieve high performance and are scaling friendly, but also are fully synthesizable using standard digital flow, greatly improving productivity.



Nan Sun is Assistant Professor in the Department of Electrical and Computer Engineering at the University of Texas at Austin. He received the B.S. degree from Tsinghua University, Beijing, China in 2006, where he ranked top in Department of Electronic Engineering and graduated with the highest honor and the Outstanding Undergraduate Thesis Award. He received the Ph.D. degree from Harvard University in 2010. Dr. Sun holds the AMD Development Chair at UT Austin. He received the NSF Career Award in 2013 and Jack Kilby Research Award from UT Austin in 2015. He also received Samsung Fellowship, Hewlett Packard Fellowship, and Analog Devices Outstanding Student Designer Award in 2003, 2006, and 2007, respectively. He won Harvard Teaching Award in three consecutive years: 2008, 2009, and 2010. He serves in the TPC of IEEE Custom Integrated Circuits Conference and Asian Solid-State Circuit Conference. He is Associate Editor for IEEE Transactions on Circuits and Systems – I: Regular Papers.


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