Phase-Locked Loop-Based Nanoresonator Integrated Circuit for Motional Resistance Sensing with Automatic Gain Control. - Hyunwoo Heo; Hyungseup Kim; Donggeun You; Yongsu Kwon; Hyoungho Ko; Yil-Suk Yang (ISOCC, 2020)

A 28.4 nV/√Hz Chopper Stabilized Current Feedback Instrumentation Amplifier with Auto Offset Calibration DAC for Resistive Bridge Sensor. - Yongsu Kwon; Hyungseup Kim; Donggeun You; Hyunwoo Heo; Hyoungho Ko; Sangmin Lee 002 (ISOCC, 2020)

A Current Feedback Instrumentation Amplifier with Current Reuse and Power Line Interference Mitigation Technique for ECG Recording. - Donggeun You; Hyunwoo Heo; Hyungseup Kim; Yongsu Kwon; Hyoungho Ko; Sangmin Lee 002 (ISOCC, 2020)

Chopper-Stabilized Low-Noise Multipath Operational Amplifier With Dual Ripple Rejection Loops. - Hyungseup Kim; Kwonsang Han; Jaesung Kim; Donggeun You; Hyunwoo Heo; Yongsu Kwon; Choul-Young Kim; Hi-Deok Lee; Hyoungho Ko (IEEE Trans. Circuits Syst., 2020)

Secure IC with Countermeasure to Unpowered Physical Attack using On-chip Photodiode and Charge Pump. - Hyunwoo Heo; Donggeun You; Hyungseup Kim; Yongsu Kwon; Hyoungho Ko; Dong Kyue Kim; Byong-Deok Choi; Ji-Hoon Kim 003 (ICEIC, 2021)

A BJT-Based CMOS Body Temperature Sensor Analog Front-End with Dynamic Element Matching. - Yongsu Kwon; Hyungseup Kim; Donggeun You; Hyunwoo Heo; Hyoungho Ko; Sangmin Lee 002 (ICEIC, 2021)

Current-Reused Current Feedback Instrumentation Amplifier for Low Power Leadless Pacemakers. - Gyuri Choi; Donggeun You; Hyunwoo Heo; Hyungseup Kim; Yongsu Kwon; Kyeongsik Nam; Sangmin Lee 002; Hyoungho Ko (IEEE Access, 2021)

A Four-Channel Low-Noise Readout IC for Air Flow Measurement Using Hot Wire Anemometer in 0.18 μm CMOS Technology. - Kyeongsik Nam; Hyungseup Kim; Yongsu Kwon; Gyuri Choi; Taeyup Kim; Chulhong Kim; Dongil Cho; Junghoon Lee; Hyoungho Ko (Sensors, 2021)

Low-Noise Chopper Amplifier Using Lateral PNP Input Stage With Automatic Base Current Cancellation. - Hyungseup Kim; Yongsu Kwon; Donggeun You; Hyun-Woong Choi; Seong Hyun Kim; Hyunwoo Heo; Choul-Young Kim; Hi-Deok Lee; Hyoungho Ko (IEEE Trans. Circuits Syst. II Express Briefs, 2021)

Low-Noise Resistive Bridge Sensor Analog Front-End Using Chopper-Stabilized Multipath Current Feedback Instrumentation Amplifier and Automatic Offset Cancellation Loop. - Mookyoung Yoo; Yongsu Kwon; Hyungseup Kim; Gyuri Choi; Kyeongsik Nam; Hyoungho Ko (IEEE Access, 2022)