He received the B.S. degree in electrical engineering from Kyungpook National University, Korea, in 1997, and the M.S. and Ph.D. degrees from KAIST, Daejeon, Korea, in 1999 and 2004, respectively.

From 2001 to 2002, he was with the University of California at San Diego, La Jolla, CA, USA, as a Visiting Researcher, sponsored through the Brain Korea 21 (BK21) Program. In 2004, he joined Samsung Electronics, Yongin, South Korea, where he was involved in mixed-signal IP development.

From 2007 to 2009, he was with the Information and Communications University (ICU), Daejeon, as an Assistant Professor. He has been with the School of Electrical Engineering, KAIST, since 2009, where he is currently a Professor. His research interests include analog and mixed-signal integrated circuit (IC) design with an emphasis on data converters and sensors. He has in excess of 100 research publications (journal and conference) and more than 30 patents (international and domestic).

Dr. Ryu is a member of the Technical Program Committee (TPC) of Asian Solid-State Circuits Conference (ASSCC), Custom Integrated Circuits Conference (CICC), and European Solid-State Circuits Conference (ESSCIRC). He has served on the TPC of the IEEE International Solid- State Circuits Conference (ISSCC) and as a Guest Editor for the IEEE JOURNAL OF SOLID-STATE CIRCUITS (JSSC), twice. He has been an Associate Editor of the IEEE SOLID-STATE CIRCUITS LETTERS (SSCL) since 2018. He is also serving as a Distinguished Lecturer for the IEEE Solid-State Circuits Society for the period of 2021-2022.