Publications

2025

A Dual-Slope Sampling PLL with Boosted Phase Detection Gain and Wide Lock-in Range Achieving 52 Fs RMS Jitter

IEEE International Solid-State Circuits Conference (ISSCC) SRP session, Accepted for presentation

H. An, C. An, S. Kim, and H. Yoon*

A −53.7 dB PSRR, Fast-Transient Output-Capacitor-less Digital-Assisted Analog LDO Using Seamless Digital-to-Analog Transfer Technique

IEEE Journal of Solid-State Circuits (JSSC), Accepted for publication

C. An, H. An, H. Nam, and H. Yoon*

A Multibit ReRAM Computing-in-Memory Processor with Adaptive Decision Level Nonlinear ADC for Ultra-low-energy Keyword Spotting in Mobile Devices

IEEE Transactions on Circuits and Systems I: Regular Papers (TCAS-I), Accepted for publication

D. Kim, H. Jeong, S. Kim, H. Yoon*, and K. J. Lee*

An area-efficient, DTC-Less fractional-N Sampling PLL Achieving 140 fs RMS Jitter and −66.3 dBc Fractional Spur

IEEE Asian Solid-State Circuits Conference (Accepted for presentation)

H. An, H. Nam, C. An, and H. Yoon*

A Mixture-Gas Multisensor Interface with On-chip Classification and On-Edge Regression

IEEE Sensors Journal, 2025 (Accepted)

Y. Kim, J. Cho, Y. Pyeon, H. Kim, S. Lee, J. Kwak, H. Yoon, Y. Lee, and J. Kim

A 6.2b-ENOB 2.5GS/s Flash-and-VCO Based Subranging ADC Using a Residue Shifting Technique

IEEE Solid-State Circuits Letters (SSC-L), 2025 (Accepted)

S. Kim=, J. Lee=, Y. Cho, J. Kim, J. Choi*, and H. Yoon* (=Equal-Credited Author)

A Low-Jitter and Wide-Frequency-Range D-Band Frequency Synthesizer with a Subsampling PLL and a Harmonic Boosting Frequency Multiplier

IEEE Journal of Solid-State Circuits (JSSC), vol.60, no. 5, pp. 1632-1643, May 2025.

S. Jung, J. Kim, J. Bang, S. Lee, H. Yoon*, and J. Choi*

An Area-Efficient CMOS Cross-Coupled LC-VCO Using Nested Intertwined Tail Inductors

IEEE Transactions on Circuits and Systems II: Express Briefs (TCAS-II), vol. 72, no. 1, pp. 143-147, Jan. 2025

H. An, H. Nam, S. Kim, Y. Lim and H. Yoon*

2021

An 82fsRMS-Jitter and 22.5mW-Power, 102GHz W-Band PLL Using a Power-Gating Injection-Locked Frequency Multiplier-Based Phase Detector in 65nm CMOS

IEEE International Solid-State Circuit Conference (ISSCC), Feb. 2021

S. Yoo=, S. Park=, S. Choi=, Y. Cho, H. Yoon, C. Hwang, and J. Choi (=Equal-Credited Author)

2020

A 170MHz-Lock-In-Range and -253dB-FOMJIT, 12-14.5GHz Subsampling PLL with 150µW Frequency-Disturbance-Correcting Loop Using a Low-Power Unevenly Spaced Edge Generator

IEEE International Solid-State Circuit Conference (ISSCC), Feb. 2020

Y. Lim=, J. Kim=, Y. Jo, J. Bang, S. Yoo, H. Park, H. Yoon, and J. Choi (=Equal-Credited Author)

2019

An Ultra-Low-Jitter, mmW-Band Frequency Synthesizer Based on Digital Subsampling PLL Using Optimally-Spaced Voltage Comparators

IEEE Journal of Solid-State Circuits (JSSC), vol.54, no. 12, pp. 3466-3477, Dec. 2019.

J. Kim, Y. Lim, H. Yoon, Y. Lee, Y. Cho, T. Seong, and J. Choi

A Low-Jitter Injection-Locked Multi-Frequency Generator Using Digitally-Controlled Oscillators and Time-Interleaved Calibration

IEEE Journal of Solid-State Circuits (JSSC), vol.54, no. 6, pp. 1564-1574, Jun. 2019.

H. Yoon, S. Park, and J. Choi

A 76fsrms Jitter and −40dBc Integrated-Phase-Noise 28-to-31GHz Frequency Synthesizer Based on Digital Sub-Sampling PLL Using Optimally Spaced Voltage Comparators and Background Loop-Gain Optimization

IEEE International Solid-State Circuit Conference (ISSCC), Feb. 2019

J. Kim=, H. Yoon=, Y. Lim*, Y. Lee, Y. Cho, T. Seong, and J. Choi (=Equal-Credited Author)

2018

Fractional-N Frequency Synthesizer Supporting Multiple Frequency Bands for Backward-Compatible 5G Using a Frequency Doubler and Injection-Locked Frequency Multipliers

IEEE International Solid-State Circuit Conference (ISSCC), Feb. 2018

H. Yoon, J. Kim, S. Park, Y. Lim, Y. Lee, J. Bang, K. Lim, and J. Choi

A Low-Integrated-Phase-Noise 27-30-GHz Injection-Locked Frequency Multiplier With an Ultra-Low-Power Frequency-Tracking Loop for mm-Wave-Band 5G Transceivers

IEEE Journal of Solid-State Circuits (JSSC), vol.53, no. 2, pp. 375-388, Feb. 2018.

S. Yoo, S. Choi, J. Kim, H. Yoon, Y. Lee and J. Choi

Injection-locked frequency multiplier with a continuous frequency-tracking loop for 5G transceivers

IEEE Asia and South Pacific Design Automation Conference (ASP-DAC), 2018

S Yoo, S. Choi, J. Kim, H. Yoon, Y. Lee and J. Choi

2017

An Ultra-Low Phase Noise All-Digital Multi-Frequency Generator Using Injection-Locked DCOs and Time-Interleaved Calibration

IEEE Asian Solid-State Circuits (ASSCC), Nov. 2017

S. Park, H. Yoon, and J. Choi

A PVT-Robust 29GHz Injection-Locked Frequency Multiplier with a 600μW Frequency-Tracking Loop for mm-Band 5G Transceivers

IEEE International Solid-State Circuit Conference (ISSCC), Feb. 2017

S. Yoo, S. Choi, J. Kim, H. Yoon, Y. Lee, and J. Choi

2016

A PVT-Robust Low Reference Spur Injection-Locked Clock Multiplier Using a Voltage-Domain Period-Calibrating Loop

 IEEE VLSI Symposium, Jun. 2016

Y. Lee, H. Yoon, M. Kim, and J. Choi

A 0.56 – 2.92 GHz Wideband and Low Phase Noise Quadrature LO-Generator Using a Single LC-VCO for 2 – 4G Multi-Standard Cellular Transceivers

IEEE Journal of Solid-State Circuits (JSSC), vol.51, no. 3, pp. 614-625, Mar. 2016

H. Yoon, Y. Lee, Y. Lim, G. Tak, H. Kim, Y. Ho, and J. Choi

2014

A Wideband Dual-Mode LC-VCO With a Switchable Gate-Biased Active Core

IEEE Transactions on Circuits and Systems II: Express Briefs (TCAS-II), vol. 61, no. 5, pp. 289-293, May 2014

H. Yoon, Y. Lee, and J. Choi