FALL 2023 VOL. 15 * NO. 4 www.ieee.org/sscs-news FEATURES 20 Wireless Compact Neural Interface for Freely Moving Animal Subjects By Milin Zhang, Ziyao Zhao, Yuan Ma, Chao Zhang, Wei Song, Jiaxin Lei, and Chao Xie 30 Implantable Medical Devices for Wireless Optical Neuromodulation and Neural Recording By Yaoyao Jia and Linran Zhao 41 Next-Generation Closed-Loop Neural Interfaces By Mahsa Shoaran 50 Ultra-Low-Power Voltage References By Chutham Sawigun, Xiaolin Yang, and Carolina Mora Lopez 58 Evolution of ESD Robust IC Design By Ann Concannon COLUMNS/DEPARTMENTS 3 CONTRIBUTORS 4 EDITOR'S NOTE 5 PRESIDENT'S CORNER TUTORIAL COLUMNS 6 THE ANALOG MIND 11 CIRCUIT INTUITIONS 13 SHOP TALK: WHAT YOU DIDN'T LEARN IN SCHOOL 64 SOCIETY NEWS 71 CHAPTERS 85 PEOPLE 88 CONFERENCE REPORTS 95 IEEE NEWS COVER 3 CONFERENCE CALENDAR Tx Coils Wirelessly Powered Cage Rx Coil IMD ABOUT THIS IMAGE: To learn more about a wirelessly-powered cage for freely moving animals, see Jia et al. article " Implantable Medical Devices for Wireless Optical Neuromodulation and Neural Recording. " Digital Object Identifier 10.1109/MSSC.2023.3318361 IEEE SOLID-STATE CIRCUITS MAGAZINE FALL 2023 1 WPThttp://www.ieee.org/sscs-news