@conference {4666, title = {A 486 {\textmu}W All-Digital Bluetooth Low Energy Transmitter with Ring Oscillator Based ADPLL for IoT applications}, booktitle = {IEEE Radio Frequency Integrated Circuits Symposium (RFIC)}, year = {2018}, month = {06/2018}, author = {Xing Chen and Jacob Breiholz and Farah B. Yahya and Christopher J Lukas and Hun-Seok Kim and Benton H. Calhoun and David D. Wentzloff} }