Direct inductive stimulation for energy-efficient wireless neural interfaces. - Sohmyung Ha; Massoud L. Khraiche; Gabriel A. Silva; Gert Cauwenberghs (EMBC, 2012)

85 dB dynamic range 1.2 mW 156 kS/s biopotential recording IC for high-density ECoG flexible active electrode array. - Sohmyung Ha; Jongkil Park 001; Yu M. Chi; Jonathan Viventi; John A. Rogers; Gert Cauwenberghs (ESSCIRC, 2013)

A 12.6 mW 8.3 Mevents/s contrast detection 128×128 imager with 75 dB intra-scene DR asynchronous random-access digital readout. - Jongkil Park 001; Sohmyung Ha; Chul Kim; Siddharth Joshi 001; Theodore Yu; Wei Ma; Gert Cauwenberghs (BioCAS, 2014)

A 65k-neuron 73-Mevents/s 22-pJ/event asynchronous micro-pipelined integrate-and-fire array transceiver. - Jongkil Park 001; Sohmyung Ha; Theodore Yu; Emre Neftci; Gert Cauwenberghs (BioCAS, 2014)

A 7.86 mW +12.5 dBm in-band IIP3 8-to-320 MHz capacitive harmonic rejection mixer in 65nm CMOS. - Chul Kim; Sohmyung Ha; Chris M. Thomas; Siddharth Joshi 001; Jongkil Park 001; Lawrence E. Larson; Gert Cauwenberghs (ESSCIRC, 2014)

Energy-recycling integrated 6.78-Mbps data 6.3-mW power telemetry over a single 13.56-MHz inductive link. - Sohmyung Ha; Chul Kim; Jongkil Park 001; Siddharth Joshi 001; Gert Cauwenberghs (VLSIC, 2014)

Integrated Circuits and Electrode Interfaces for Noninvasive Physiological Monitoring. - Sohmyung Ha; Chul Kim; Yu M. Chi; Abraham Akinin; Christoph Maier; Akinori Ueno; Gert Cauwenberghs (IEEE Trans. Biomed. Eng., 2014)

A 16-channel wireless neural interfacing SoC with RF-powered energy-replenishing adiabatic stimulation. - Sohmyung Ha; Abraham Akinin; Jongkil Park 001; Chul Kim; Hui Wang 023; Christoph Maier; Gert Cauwenberghs; Patrick P. Mercier (VLSIC, 2015)

A 144MHz integrated resonant regulating rectifier with hybrid pulse modulation. - Chul Kim; Sohmyung Ha; Jiwoong Park; Abraham Akinin; Patrick P. Mercier; Gert Cauwenberghs (VLSIC, 2015)

A CMOS 4-channel MIMO baseband receiver with 65dB harmonic rejection over 48MHz and 50dB spatial signal separation over 3MHz at 1.3mW. - Chul Kim; Siddharth Joshi 001; Chris M. Thomas; Sohmyung Ha; Abraham Akinin; Lawrence E. Larson; Gert Cauwenberghs (VLSIC, 2015)

A fully integrated 144 MHz wireless-power-receiver-on-chip with an adaptive buck-boost regulating rectifier and low-loss H-Tree signal distribution. - Chul Kim; Jiwoong Park; Abraham Akinin; Sohmyung Ha; Rajkumar Kubendran; Hui Wang 023; Patrick P. Mercier; Gert Cauwenberghs (VLSI Circuits, 2016)

Energy Recycling Telemetry IC With Simultaneous 11.5 mW Power and 6.78 Mb/s Backward Data Delivery Over a Single 13.56 MHz Inductive Link. - Sohmyung Ha; Chul Kim; Jongkil Park 001; Siddharth Joshi 001; Gert Cauwenberghs (IEEE J. Solid State Circuits, 2016)

A 1.3 mW 48 MHz 4 Channel MIMO Baseband Receiver With 65 dB Harmonic Rejection and 48.5 dB Spatial Signal Separation. - Chul Kim; Siddharth Joshi 001; Chris M. Thomas; Sohmyung Ha; Lawrence E. Larson; Gert Cauwenberghs (IEEE J. Solid State Circuits, 2016)

Wireless powering of mm-scale fully-on-chip neural interfaces. - Jiwoong Park; Chul Kim; Abraham Akinin; Sohmyung Ha; Gert Cauwenberghs; Patrick P. Mercier (BioCAS, 2017)

From algorithms to devices: Enabling machine learning through ultra-low-power VLSI mixed-signal array processing. - Siddharth Joshi 001; Chul Kim; Sohmyung Ha; Gert Cauwenberghs (CICC, 2017)

Design of miniaturized wireless power receivers for mm-sized implants. - Chul Kim; Sohmyung Ha; Abraham Akinin; Jiwoong Park; Rajkumar Kubendran; Hui Wang 023; Patrick P. Mercier; Gert Cauwenberghs (CICC, 2017)

21.7 2pJ/MAC 14b 8×8 linear transform mixed-signal spatial filter in 65nm CMOS with 84dB interference suppression. - Siddharth Joshi 001; Chul Kim; Sohmyung Ha; Yu Mike Chi; Gert Cauwenberghs (ISSCC, 2017)

A 144-MHz Fully Integrated Resonant Regulating Rectifier With Hybrid Pulse Modulation for mm-Sized Implants. - Chul Kim; Sohmyung Ha; Jiwoong Park; Abraham Akinin; Patrick P. Mercier; Gert Cauwenberghs (IEEE J. Solid State Circuits, 2017)

Silicon-Integrated High-Density Electrocortical Interfaces. - Sohmyung Ha; Abraham Akinin; Jiwoong Park; Chul Kim; Hui Wang 023; Christoph Maier; Patrick P. Mercier; Gert Cauwenberghs (Proc. IEEE, 2017)

Magnetically Balanced Power and Data Telemetry for mm-scale Neural Implants. - Neeraj K. Mandloi; Sohmyung Ha (EMBC, 2018)

Harmonic Error Cancellation for Accurate Square-wave-based Bio-Impedance Measurements. - Saqib Subhan; Sohmyung Ha (EMBC, 2018)

A 500-MHz Bandwidth 7.5-mVpp Ripple Power-Amplifier Supply Modulator for RF Polar Transmitters. - Chul Kim; Chang-Seok Chae; Young-Sub Yuk; Chris M. Thomas; Yi-Gyeong Kim; Jong-Kee Kwon; Sohmyung Ha; Gert Cauwenberghs; Gyu-Hyeong Cho (IEEE J. Solid State Circuits, 2018)

A Fully Differential Potentiostat Circuit with Integrated Time-based ADCs. - Saqib Subhan; Sachin Khapli; Yong-Ak Song; Sohmyung Ha (BioCAS, 2019)

A Fully Integrated RF-Powered Energy-Replenishing Current-Controlled Stimulator. - Sohmyung Ha; Chul Kim; Jiwoong Park; Gert Cauwenberghs; Patrick P. Mercier (IEEE Trans. Biomed. Circuits Syst., 2019)

A 3 mm × 3 mm Fully Integrated Wireless Power Receiver and Neural Interface System-on-Chip. - Chul Kim; Jiwoong Park; Sohmyung Ha; Abraham Akinin; Rajkumar Kubendran; Patrick P. Mercier; Gert Cauwenberghs (IEEE Trans. Biomed. Circuits Syst., 2019)

A Harmonic Error Cancellation Method for Accurate Clock-Based Electrochemical Impedance Spectroscopy. - Saqib Subhan; Sohmyung Ha (IEEE Trans. Biomed. Circuits Syst., 2019)

A 4.2-pJ/Conv 10-b Asynchronous ADC with Hybrid Two-Tier Level-Crossing Event Coding. - Rajkumar Kubendran; Jongkil Park 001; Ritvik Sharma; Chul Kim; Siddharth Joshi 001; Gert Cauwenberghs; Sohmyung Ha (ISCAS, 2020)

A 0.0046mm2 6.7μW Three-Stage Amplifier Capable of Driving 0.5-to-1.9nF Capacitive Load with >0.68MHz GBW without Compensation Zero. - Hongseok Shin; Jinuk Kim; Doojin Jang; Donghee Cho; Yoontae Jung; Hyungjoo Cho; Unbong Lee; Chul Kim; Sohmyung Ha; Minkyu Je (VLSI Circuits, 2020)

Architectural Advancement of Digital Low-Dropout Regulators. - Muhammad Abrar Akram; In-Chul Hwang; Sohmyung Ha (IEEE Access, 2020)

Challenges in Scaling Down of Free-Floating Implantable Neural Interfaces to Millimeter Scale. - Kai-Wen K. Yang; Keonghwan Oh; Sohmyung Ha (IEEE Access, 2020)

A 99.5dB-DR 5kHz-BW Closed-Loop Neural-Recording IC based on Continuous-Time Dynamic-Zoom ΔΣ ADC with Automatic AFE-Gain Control. - Yoontae Jung; Soon-Jae Kweon; Hyuntak Jeon; Taeju Lee; Injun Choi; Kyeongwon Jeong; Mi Kyung Kim; Hyunjoo Jenny Lee; Sohmyung Ha; Minkyu Je (A-SSCC, 2021)

A Scalable Readout IC Based on Wideband Noise Cancelling for Full-Rate Scanning of High-Density Microelectrode Arrays. - Jinuk Kim; Hongseok Shin; Soon-Jae Kweon; Seongwook Lee; Sohmyung Ha; Minkyu Je (EMBC, 2021)

A Load-Current-Regulating OLED Lamp Driver Using a Hybrid Step-Up Converter with 93.21% Efficiency at a High Conversion Ratio of 4.1. - Donghee Cho; Hongseok Shin; Hyunwoo Park; Sein Oh; Taeju Lee; Sohmyung Ha; Chul Kim; Minkyu Je (ESSCIRC, 2021)

A Power-Efficient, Wide-Frequency-Range Impedance Measurement IC Using Frequency-Shift Technique. - Song-I Cheon; Soon-Jae Kweon; Youngin Kim 001; Sohmyung Ha; Minkyu Je (ISCAS, 2021)

34.4 An Energy-Replenishing Ultrasound Pulser with 0.25CV2 f Dynamic Power Consumption. - Jaesuk Choi; Yechan Park; Jung Bum Oh; Jun-Young Kim; Jae Youn Hwang; Sohmyung Ha; Chul Kim; Minkyu Je (ISSCC, 2021)

A Frequency-Splitting-Based Wireless Power and Data Transfer IC for Neural Prostheses with Simultaneous 115mWPower and 2.5Mb/s Forward Data Delivery. - Yechan Park; Seok-Tae Koh; Jeongeun Lee; Hongkyun Kim; Jaesuk Choi; Sohmyung Ha; Chul Kim; Minkyu Je (ISSCC, 2021)

A Self-Powered Wireless Gas Sensor Node Based on Photovoltaic Energy Harvesting. - Phan Dang Hung; Yechan Park; Soon-Jae Kweon; Taeju Lee; Hyuntak Jeon; Seok-Tae Koh; Incheol Cho; Jun-Bo Yoon; Inkyu Park; Chul Kim; Sohmyung Ha; Minkyu Je (VLSI Circuits, 2021)

An 8MHz 31.25kS/s Impedance-Monitoring IC Based on IF-Sampling Architecture with a Band-Pass Delta-Sigma ADC. - Soon-Jae Kweon; Joonho Gil; Chulhyun Park; Sein Oh; Yoontae Jung; Injun Choi; Song-I Cheon; Hung Phan Dang; Ja-Hyuck Koo; Geunhoe Kim; Sohmyung Ha; Minkyu Je (VLSI Circuits, 2021)

A 96.6%-Efficiency Continuous-Input-Current Hybrid Dual-Path Buck-Boost Converter with Single-Mode Operation and Non-Stopping Output Current Delivery. - Hongseok Shin; Doojin Jang; Gyeong-Gu Kang; Jinuk Kim; Chul Kim; Sohmyung Ha; Minkyu Je (VLSI Circuits, 2021)

Power Delivery Networks for Embedded Mobile SoCs: Architectural Advancements and Design Challenges. - Muhammad Abrar Akram; In-Chul Hwang; Sohmyung Ha (IEEE Access, 2021)

A Precise Lesion Localization System Using a Magnetometer With Real-Time Baseline Cancellation for Laparoscopic Surgery. - Soon-Jae Kweon; Woojin Yun; Hyunwoo Park; Jeong-Ho Park; Jung Hoon Lee 001; Jin Lee; Minkyu Je; Sohmyung Ha; Choul-Young Kim (IEEE Access, 2021)

A Polar-Demodulation-Based Impedance-Measurement IC Using Frequency-Shift Technique With Low Power Consumption and Wide Frequency Range. - Song-I Cheon; Soon-Jae Kweon; Youngin Kim 001; Jimin Koo; Sohmyung Ha; Minkyu Je (IEEE Trans. Biomed. Circuits Syst., 2021)

A Wireless Power and Data Transfer IC for Neural Prostheses Using a Single Inductive Link With Frequency-Splitting Characteristic. - Yechan Park; Seok-Tae Koh; Jeongeun Lee; Hongkyun Kim; Jaesuk Choi; Sohmyung Ha; Chul Kim; Minkyu Je (IEEE Trans. Biomed. Circuits Syst., 2021)

Capacitor-Less Dual-Mode All-Digital LDO With ΔΣ-Modulation-Based Ripple Reduction. - Muhammad Abrar Akram; Wook Hong; Sohmyung Ha; In-Chul Hwang (IEEE Trans. Circuits Syst. II Express Briefs, 2021)

Energy-Efficient High-Voltage Pulsers for Ultrasound Transducers. - Jaesuk Choi; Sangyeon Youn; Jae Youn Hwang; Sohmyung Ha; Chul Kim; Minkyu Je (IEEE Trans. Circuits Syst. II Express Briefs, 2021)

Effects of Duration and Envelope of Vibrotactile Alerts on Urgency, Annoyance, and Acceptance. - Ahmed Elsaid; Wanjoo Park; Sohmyung Ha; Yong-Ak Song; Mohamad A. Eid (AsiaHaptics, 2022)

A 433.92-MHz CMOS Rectifier with Dynamic VTH-reduction for Wireless Biomedical Implants. - Muhammad Abrar Akram; Sohmyung Ha (BioCAS, 2022)

A Single-Mode Dual-Path Buck-Boost Converter with Reduced Inductor Current Across All Duty Cases Achieving 95.58% Efficiency at 1A in Boost Operation. - Donghee Cho; Hyungjoo Cho; Sein Oh; Yoontae Jung; Sohmyung Ha; Chul Kim; Minkyu Je (CICC, 2022)

A 133.6TOPS/W Compute-In-Memory SRAM Macro with Fully Parallel One-Step Multi-Bit Computation. - Edward Jongyoon Choi; Injun Choi; Chanhee Jeon; Gichan Yun; Donghyeon Yi; Sohmyung Ha; Ik-Joon Chang; Minkyu Je (CICC, 2022)

A 96.5%-Power-Efficiency Hybrid Buck-Boost Photovoltaic Energy Harvester Employing Adaptive FOCV MPPT Control for >98% MPPT Efficiency Across a 10, 000× Dynamic Range. - Phan Dang Hung; Hongseok Shin; Yechan Park; Kim-Hoang Nguyen; Donghee Cho; Sohmyung Ha; Chul Kim; Minkyu Je (VLSI Technology and Circuits, 2022)

A 600mVPP-Input-Range 94.5dB-SNDR NS-SAR-Nested DSM with 4th-Order Truncation-Error Shaping and Input-Impedance Boosting for Biosignal Acquisition. - Kyeongwon Jeong; Gichan Yun; Sohmyung Ha; Minkyu Je (VLSI Technology and Circuits, 2022)

An SRAM-Based Hybrid Computation-in-Memory Macro Using Current-Reused Differential CCO. - Injun Choi; Edward Jongyoon Choi; Donghyeon Yi; Yoontae Jung; Hoyong Seong; Hyuntak Jeon; Soon-Jae Kweon; Ik-Joon Chang; Sohmyung Ha; Minkyu Je (IEEE J. Emerg. Sel. Topics Circuits Syst., 2022)

A Wide-Dynamic-Range Neural-Recording IC With Automatic-Gain-Controlled AFE and CT Dynamic-Zoom ΔΣ ADC for Saturation-Free Closed-Loop Neural Interfaces. - Yoontae Jung; Soon-Jae Kweon; Hyuntak Jeon; Injun Choi; Jimin Koo; Mi Kyung Kim; Hyunjoo Jenny Lee; Sohmyung Ha; Minkyu Je (IEEE J. Solid State Circuits, 2022)

An Impedance Readout IC with Ratio-Based Measurement Techniques for Electrical Impedance Spectroscopy. - Song-I Cheon; Soon-Jae Kweon; Youngin Kim 001; Jimin Koo; Sohmyung Ha; Minkyu Je (Sensors, 2022)

Wireless Kitchen Fire Prevention System Using Electrochemical Carbon Dioxide Gas Sensor for Smart Home. - Soon-Jae Kweon; Jeong-Ho Park; Chong-Ook Park; Hyung-Joun Yoo; Sohmyung Ha (Sensors, 2022)

An Intra-Body Power Transfer System With $>$1-mW Power Delivered to the Load and 3.3-V DC Output at 160-cm of on-Body Distance. - Hyungjoo Cho; Ji-Hoon Suh; Chul Kim; Sohmyung Ha; Minkyu Je (IEEE Trans. Biomed. Circuits Syst., 2022)

A PVT-Robust AFE-Embedded Error-Feedback Noise-Shaping SAR ADC With Chopper-Based Passive High-Pass IIR Filtering for Direct Neural Recording. - Kyeongwon Jeong; Yoontae Jung; Gichan Yun; Donghyun Youn; Yehhyun Jo; Hyunjoo Jenny Lee; Sohmyung Ha; Minkyu Je (IEEE Trans. Biomed. Circuits Syst., 2022)

On-Chip Sinusoidal Signal Generators for Electrical Impedance Spectroscopy: Methodological Review. - Soon-Jae Kweon; Ayesha Kajol Rafi; Song-I Cheon; Minkyu Je; Sohmyung Ha (IEEE Trans. Biomed. Circuits Syst., 2022)

Dynamic-Range-Enhancement Techniques for Artifact-Tolerant Biopotential-Acquisition ICs. - Yoontae Jung; Soon-Jae Kweon; Taeju Lee; Kyeongwon Jeong; Sohmyung Ha; Minkyu Je (IEEE Trans. Circuits Syst. II Express Briefs, 2022)

A 2pA/√Hz Current-Conveyor-Assisted Ultrasound Receiver with 25pF CMUT Parasitic Capacitance. - Gichan Yun; Kyeongwon Jeong; Haidam Choi; Seunghyeon Nam; Chaerin Oh; Hyunjoo Jenny Lee; Sohmyung Ha; Minkyu Je (A-SSCC, 2023)

A 333TOPS/W Logic-Compatible Multi-Level Embedded Flash Compute-In-Memory Macro with Dual-Slope Computation. - Edward Jongyoon Choi; Injun Choi; Vincent Lukito; Dong-Hwi Choi; Donghyeon Yi; Ik-Joon Chang; Sohmyung Ha; Minkyu Je (CICC, 2023)

A 0.9V 2MHz 6.4x-Slope-Boosted Quadrature-Phase Relaxation Oscillator with 164.2dBc/Hz FoM and 62.5ppm Period Jitter in 0.18μm CMOS. - Hoyong Seong; Donghyun Youn; Injun Choi; Junghyup Lee; Sohmyung Ha; Minkyu Je (CICC, 2023)

An Energy-Efficient, Scalable Neural Stimulation IC with Adaptive Dynamic Voltage Switching for Cochlear Implant System. - Woojin Ahn; Kim-Hoang Nguyen; Jungwoo Lim; Kyou Sik Min; Hoseung Lee; Sohmyung Ha; Minkyu Je (ISCAS, 2023)

A 187dB FoMS 46fJ/Conv 2nd-order Highpass Δ∑ Capacitance-to-Digital Converter. - Yoontae Jung; Sein Oh; Jimin Koo; Seunga Park; Ji-Hoon Suh; Donghee Cho; Sohmyung Ha; Minkyu Je (VLSI Technology and Circuits, 2023)

A 2.5mW 12MHz-BW 69dB SNDR Passive Bandpass ΔΣ ADC with Highpass Noise-Shaping SAR Quantizers. - Sein Oh; Seunga Park; Yoontae Jung; Jimin Koo; Donghee Cho; Sohmyung Ha; Minkyu Je (VLSI Technology and Circuits, 2023)

Optimal Parameter Design of DAC-Based Sinusoidal Signal Generators for Electrical Impedance Spectroscopy. - Song-I Cheon; Soon-Jae Kweon; Aida Aberra; Minkyu Je; Sohmyung Ha (IEEE Trans. Instrum. Meas., 2023)

A High-Efficiency Single-Mode Dual-Path Buck-Boost Converter With Reduced Inductor Current. - Donghee Cho; Hyungjoo Cho; Sein Oh; Yoontae Jung; Sohmyung Ha; Chul Kim; Minkyu Je (IEEE J. Solid State Circuits, 2023)

A Differential Rectifier With ${V}_{TH}$ Compensation for High-Frequency RF Inputs. - Muhammad Abrar Akram; Sohmyung Ha (IEEE Trans. Biomed. Circuits Syst., 2023)

A Wide-Bandwidth Ultrasound Receiver and On-Chip Ultrasound Transmitter for Ultrasound Capsule Endoscopy. - Kyeongwon Jeong; Gichan Yun; Jaesuk Choi; Injun Choi; Jeehoon Son; Jae Youn Hwang; Sohmyung Ha; Minkyu Je (IEEE J. Solid State Circuits, 2023)

A Process-Scalable Ultra-Low-Voltage Sleep Timer With a Time-Domain Amplifier and a Switch-Less Resistance Multiplier. - Chongsoo Jung; Hoyong Seong; Injun Choi; Sohmyung Ha; Minkyu Je (IEEE J. Solid State Circuits, 2023)

A 639.38GOPS Hybrid-Domain Logic-Compatible Multi-Level Embedded Flash Computing-in-Memory Macro with Spike-Edge Computation. - Jiho Chun; Edward Jongyoon Choi; Byeongseon Choi; Donghyeon Yi; Sohmyung Ha; Ik-Joon Chang; Minkyu Je (A-SSCC, 2024)

A 1.27-mW Battery-Powered Multimodal Biosensor Interface IC for Wireless Motion Intention Recognition in Wearable Robots. - Jimin Koo; Haidam Choi; Yoontae Jung; Ji-Hoon Suh; Sein Oh; Changhun Seok; Yegeun Kim; Injun Choi; Heewon Choee; Sunglim Han; Jiho Chun; Hoyong Seong; et al. (A-SSCC, 2024)

A Multi-Node Body-Channel-Communication System Using Adaptive Gain Control with ExG Readout ICs for Moving VR Users. - Dongyoon Lee; Song-I Cheon; Hyungjoo Cho; Seonghyun Park 005; Jiho Chun; Haidam Choi; Gichan Yun; Yoonsang Cho; Sohmyung Ha; Minkyu Je (A-SSCC, 2024)

A 1.3mW 10MHz-BW 71dB-SNDR Two-Step TDCAssisted Continuous-Time Noise-Shaping SAR ADC. - Sein Oh; Gichan Yun; Heewon Choee; Yoontae Jung; Jimin Koo; Sohmyung Ha; Minkyu Je (A-SSCC, 2024)

A Hybrid High-voltage Regulating Charge Pump for Electrokinetic Concentration. - Aida Aberra; Muhammad Abrar Akram; Soon-Jae Kweon; Jongmin Kim; Kim-Hoang Nguyen; Gichan Yun; Minkyu Je; Yong-Ak Song; Sohmyung Ha (ISCAS, 2024)

Ultrahigh-G Accelerometer Readout IC with Adaptive Gain Path for Shock Resilience. - Song-I Cheon; Seonghyun Park 005; Haidam Choi; Yebin Choi; Minho Seok; Young-Ho Cho; Sohmyung Ha; Minkyu Je (ISCAS, 2024)

A Low-power Δ-ΔΣ-based Bio-impedance Readout IC with Capacitive-feedback Baseline Cancellation. - Haidam Choi; Ji-Hoon Suh; Gichan Yun; Sein Oh; Song-I Cheon; Sohmyung Ha; Minkyu Je (ISCAS, 2024)

A High-throughput Impedance Measurement IC Using Synchronous Cyclic Integration Technique. - Karam Ellahi; Soon-Jae Kweon; Asra Malik; Muhammad Abrar Akram; Song-I Cheon; Yoontae Jung; Minkyu Je; Hammad M. Cheema; Sohmyung Ha (ISCAS, 2024)

A Tri-loop Fast-transient Digital LDO with Adaptive-gain Control and Fine-loop Freezer. - Muhammad Haris Farooq; Muhammad Abrar Akram; Shirin Qaisar; Soon-Jae Kweon; Hammad M. Cheema; Sohmyung Ha (ISCAS, 2024)

A 72-channel Resistive-sensor Interface IC with High Energy Efficiency and a Wide Input Range. - Sunglim Han; Hoyong Seong; Sein Oh; Jimin Koo; Hanbit Jin; Hye Jin Kim; Sohmyung Ha; Minkyu Je (ISCAS, 2024)

A Biopotential Recording IC with <10-ms-Settling Hybrid DC Servo Loop. - Yegeun Kim; Changhun Seok; Yoontae Jung; Sohmyung Ha; Minkyu Je (ISCAS, 2024)

A Reconfigurable Multimodal Sensor Interface IC Based on Direct-Conversion ΔΣ Modulator Structure. - Jimin Koo; Yoontae Jung; Sein Oh; Sunglim Han; Sohmyung Ha; Minkyu Je (ISCAS, 2024)

A High-throughput Impedance Measurement IC with Baseline-Canceling Peak Detector. - Asra Malik; Soon-Jae Kweon; Karam Ellahi; Muhammad Abrar Akram; Song-I Cheon; Yoontae Jung; Minkyu Je; Hammad M. Cheema; Sohmyung Ha (ISCAS, 2024)

An Analog-assisted Fast-transient Digital LDO with a Charge-pump-based Fine Loop Achieving 0.14-mV Output Voltage Ripples. - Shirin Qaisar; Muhammad Abrar Akram; Muhammad Haris Farooq; Soon-Jae Kweon; Hammad M. Cheema; Sohmyung Ha (ISCAS, 2024)

An SRAM-based Error-Free Time Domain Pulse Train Computing-In-Memory Macro achieving 226.14 TOPS/W and 5.782 TOPS/mm2. - Edward Jongyoon Choi; Jiho Chun; Byeongseon Choi; Sohmyung Ha; Ik-Joon Chang; Minkyu Je (ISOCC, 2024)

An Energy Efficient Period-modulation-based Current-to-digital Converter for FET-type Sensors. - Wonseok Heo; Hoyong Seong; Donghyun Youn; Minkyu Je; Sohmyung Ha (ISOCC, 2024)

A High-Efficiency High-Data-Rate Wireless Power and Data Transfer IC Using Orthogonal Codes for Miniatureized Multi-Channel Neural Interface Systems. - Chan Park; Sohmyung Ha; Minkyu Je (ISOCC, 2024)

3.6 An Amplifier-Less CMOS Potentiostat IC Consuming 3.7nW Power all over 129.5dB Dynamic Range for Electrochemical Biosensing. - Muhammad Abrar Akram; Aida Aberra; Soon-Jae Kweon; Sohmyung Ha (ISSCC, 2024)

33.8 A Two-Electrode Bio-Impedance Readout IC with Complex-Domain Noise-Correlated Baseline Cancellation Supporting Sinusoidal Excitation. - Song-I Cheon; Haidam Choi; Gichan Yun; Sein Oh; Ji-Hoon Suh; Sohmyung Ha; Minkyu Je (ISSCC, 2024)

An Intra-Body-Power-Transfer System Energized by an Electromagnetic Energy Harvester for Powering Wearable Sensor Nodes. - Hyungjoo Cho; Dongyoon Lee; Hoyong Sung; Heewon Choee; Ji-Hoon Suh; Injun Choi; Donghee Cho; Sohmyung Ha; Minkyu Je (VLSI Technology and Circuits, 2024)

A Δ-Based Spike Sorting SoC with End-to-End Implementation of Event-Driven Binary Autoencoder Neural Network in Analog CIM Achieving 94.54% Accuracy and 3.11μW/ch. - Edward Jongyoon Choi; Vincent Lukito; Injun Choi; Seoyoung Lee; Ik-Joon Chang; Sohmyung Ha; Minkyu Je (VLSI Technology and Circuits, 2024)

A Fully Dynamic 1st-Order Δ-ΔΣ Modulator with a 468mVpp Input Range for Electrical Impedance Tomography Systems. - Haidam Choi; Gichan Yun; Ji-Hoon Suh; Sein Oh; Song-I Cheon; Yoontae Jung; Sohmyung Ha; Minkyu Je (VLSI Technology and Circuits, 2024)

A 5.7kfps Fast Neural Electrical Impedance Tomography IC Based on Incremental Zoom Structure with Baseline Cancellation for Peripheral Nerve Monitoring Systems. - Ji-Hoon Suh; Haidam Choi; Yoontae Jung; Sohmyung Ha; Minkyu Je (VLSI Technology and Circuits, 2024)

Optic-Fiber-Based Optogenetic Stimulator With μLED and 3D-Printed Structures for Brain Stimulation. - Keonghwan Oh; Mohsin Mohammed; Revathi Sukesan; Aleksa Petkovic; Dipesh Chaudhury; Sohmyung Ha (IEEE Access, 2024)

A Wide-Dynamic-Range, DC-Coupled, Time-Based Neural-Recording IC With Optimized CCO Frequency. - Donghyun Youn; Youngin Kim 001; Injun Choi; Yoontae Jung; Hyuntak Jeon; Kyungtae Lee; Soon-Jae Kweon; Sohmyung Ha; Minkyu Je (IEEE Access, 2024)

FLARE: FP-Less PTQ and Low-ENOB ADC Based AMS-PiM for Error-Resilient, Fast, and Efficient Transformer Acceleration. - Donghyeon Yi; Seoyoung Lee; Jongho Kim; Junyoung Kim; Sohmyung Ha; Ik Joon Chang; Minkyu Je (CoRR, 2024)

A 15.4-ENOB, Fourth-Order Truncation-Error-Shaping NS-SAR-Nested ΔΣ Modulator With Boosted Input Impedance and Range for Biosignal Acquisition. - Kyeongwon Jeong; Sohmyung Ha; Minkyu Je (IEEE J. Solid State Circuits, 2024)

Impedance-Readout Integrated Circuits for Electrical Impedance Spectroscopy: Methodological Review. - Song-I Cheon; Haidam Choi; Hyoju Kang; Ji-Hoon Suh; Seonghyun Park 005; Soon-Jae Kweon; Minkyu Je; Sohmyung Ha (IEEE Trans. Biomed. Circuits Syst., 2024)

A 187-dB FoMS Power-Efficient Second-Order Highpass ΔΣ Capacitance-to-Digital Converter. - Yoontae Jung; Sein Oh; Sohmyung Ha; Minkyu Je (IEEE J. Solid State Circuits, 2024)

Skew-CIM: Process-Variation-Resilient and Energy-Efficient Computation-in-Memory Design Technique With Skewed Weights. - Donghyeon Yi; Seoyoung Lee; Injun Choi; Gichan Yun; Edward Jongyoon Choi; Jonghee Park; Jonghoon Kwak; Sung-Joon Jang; Sohmyung Ha; Ik-Joon Chang; Minkyu Je (IEEE Trans. Circuits Syst. I Regul. Pap., 2024)

A Bio-Impedance Readout IC With Complex-Domain Noise-Correlated Baseline Cancellation. - Haidam Choi; Song-I Cheon; Gichan Yun; Sein Oh; Ji-Hoon Suh; Sohmyung Ha; Minkyu Je (IEEE J. Solid State Circuits, 2024)

A 6µW ECG-Recording ΔΣ Modulator with Internal-Capacitor-Flipping Technique for 34Vpp Common-Mode-Interference (CMI) Tolerance and 1Vpp Input Range. - Jimin Koo; Sein Oh; Yoontae Jung; Vincent Lukito; Sohmyung Ha; Minkyu Je (CICC, 2025)

A Low-Noise Dynamic Comparator with Charge-Pump Pre-Amplifier. - Heewon Choee; Yegeun Kim; Sein Oh; Sohmyung Ha; Minkyu Je (ISCAS, 2025)

Implantable Galvanic-Coupled Body Channel Communication Transceiver with Serpentine-Interconnection Electrode Pair for Post-Operative Monitoring of Joint Replacement. - Yunchul Chung; Hyunyeop Lee; Dongyoon Lee; Sohmyung Ha; Minkyu Je (ISCAS, 2025)

A 99.8-nV/√Hz ΔΣ Modulator with an Input-Impedance-Boosted kT/C-Noise-Cancellation Integrator for Biopotential-Signal Acquisition. - Jiho Myung; Gichan Yun; Heewon Choee; Yegeun Kim; Sohmyung Ha; Minkyu Je (ISCAS, 2025)

A 64-channel Time-multiplexed Neural Recording IC with Dual Positive Feedback Loop ZIN-Boosting. - Christopher Santos; Dong-Hwi Choi; Sohmyung Ha; Minkyu Je (ISCAS, 2025)

A Self-Powered Pressure Sensor System Based on Triboelectric Energy Harvesting for Knee Implants. - Trinh Van Thai; Phan Dang Hung; Yunchul Chung; Kim-Hoang Nguyen; Sohmyung Ha; Minkyu Je (ISCAS, 2025)

An 18.5nF-Input-Range PM-SAR-Hybrid Capacitance-to-Digital Converter Achieving 6.1μs Conversion Time at 18.1pF Input Capacitance. - Donghyun Youn; Kyeongwon Jeong; Woongro Youn; Hoyong Seong; Yechan Park; Sohmyung Ha; Minkyu Je (ISSCC, 2025)

28.2 A 189.3dB-FoMs 14.5fJ/Conversion-Step Continuous-Time Noise-Shaping SAR Capacitance-to-Digital Converter. - Gichan Yun; Haidam Choi; Yoontae Jung; Jiho Myung; Sein Oh; Sohmyung Ha; Minkyu Je (ISSCC, 2025)

A Time-Domain Multi-Channel Resistive-Sensor Interface IC With High Energy Efficiency and Wide Input Range. - Sunglim Han; Hoyong Seong; Sein Oh; Jimin Koo; Hanbit Jin; Hye Jin Kim; Sohmyung Ha; Minkyu Je (IEEE Trans. Biomed. Circuits Syst., 2025)

A Motion-Artifact-Tolerant Biopotential-Recording IC With a Digital-Assisted Loop. - Yegeun Kim; Changhun Seok; Yoontae Jung; Soon-Jae Kweon; Sohmyung Ha; Minkyu Je (IEEE Trans. Biomed. Circuits Syst., 2025)

An Energy-Efficient Stimulation System Based on Adaptive Dynamic Voltage Switching Control for Cochlear Implants. - Woojin Ahn; Kim-Hoang Nguyen; Hoseung Lee; Kyou Sik Min; Sohmyung Ha; Minkyu Je (IEEE Trans. Biomed. Circuits Syst., 2025)

Special Section on Selected Papers From IEEE BioCAS 2024. - Sohmyung Ha; Hossein Kassiri; Milin Zhang 001; Andrea Cossettini (IEEE Trans. Biomed. Circuits Syst., 2025)