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 active in the technical community, serving on the Technical Program Committees for ISSCC, A-SSCC, and ESSCIRC, and previously chairing the Data Converter Subcommittee for the IEEE CICC.

He currently serves as an Associate Editor for IEEE OJ-CAS and OJ-SSCS, and has served in similar capacities for SSCL and JSSC (as a Guest Editor). He was an IEEE Solid-State Circuits Society Distinguished Lecturer from 2021 to 2022.