Kyojin Choo

Kyojin Choo is a Tenure Track Assistant Professor at the Swiss Federal Institute of Technology Lausanne (EPFL) in the School of Engineering, affiliated with the Mixed-Signal Integrated Circuits Lab (MSIC-LAB). He also holds teaching roles in Microengineering and Electrical and Electronics Engineering at EPFL.

• B.S. and M.S. in Electrical Engineering from Seoul National University (2007, 2009)
• Ph.D. in Electrical Engineering from the University of Michigan (2018)

His research focuses on charge-domain analog/mixed-signal circuits, low-power sensor interfaces, and compact ADCs for IoT, wearables, and millimeter-scale systems. He has pioneered charge-injection cell techniques for energy-efficient circuits in energy management, sensor front-ends, and communication. His work emphasizes reducing power consumption to nanowatt levels while enabling ultra-compact designs.

His recent publications highlight advancements in compact SAR ADCs, low-power MEMS accelerometers, millimeter-scale imaging systems, and ultra-low-power timing generators. His research integrates charge-domain circuit design with sensor interface optimization, energy harvesting, and high-speed link architectures.

He holds over 20 US patents and has taught courses in Microengineering and Electrical Engineering at EPFL. His group (MSIC-LAB) addresses challenges in battery-free sensor design, power-constrained system scaling, and commercialization of wearables with unconventional form factors.