Integrated Circuits

99 fJ/Conv.-step Time-Division Switching Sigma-Delta Modulator 

IEEE Transactions on Circuits and Systems II, 2023 

198.3 dBc/Hz FoMA 20 GHz Class-C Voltage Controlled Oscillator

IEEE Transactions on Circuits and Systems II, 2021 

94.7% Peak Efficiency Duo-binary Encoded Buck-Boost Converter

IEEE Transactions on Power Electronics, 2020 

95.4% Peak Efficiency DSM-based Buck Converter 

IEEE Transactions on Power Electronics, 2018

67dB SNDR, 150 kHz BW Single Op-amp 3rd-order Continuous-Time Delta-Sigma Modulator 

IEEE Transactions on Circuit and Systems II, 2018

95.5% 0.76mm2 Dynamic Output Voltage Scaling Step-Up Converter 

Electronics, 2020

0.9~3 GHz Advanced Class-S transmitter 

Analog Integrated Circuits and Signal Processing, 2017

15 MHz BW Single Op-Amp 2nd-order Continuous-time DSM  

ETRI Journal, 2016

Tri-level 522 MHz Continuous-time DSM  

EuMC, EuMIC, 2014

9b 100MS/s Flash-SAR ADC 

ISWCS, 2012

9b 80MS/s SAR ADC 

IEEE Transactions on Circuit and Systems II, 2010

10b 30MS/s SAR ADC 

Microelectronics Journal, 2011 

12b 60MS/s Analog-Front End 

ETRI Journal, 2009

10b Variable Gain Amplifier 

ETRI Journal, 2009

Selective Oxidation FIN Channel MOSFET 

Electronics Letters, 2007

Strained-Si Channel Power MOSFET 

ETRI Journal, 2005

Single-Electron Pass-Transistor Logic 

ETRI Journal, 2003