Sohmyung Ha

Publication Activity (10 Years)

Years Active: 2012-2024
Publications (10 Years): 81

Top Topics

Cochlear Implant

Fully Integrated

Top Venues

IEEE J. Solid State Circuits

IEEE Trans. Biomed. Circuits Syst.

Publications

Muhammad Abrar Akram, Aida Aberra, Soon-Jae Kweon, Sohmyung Ha
3.6 An Amplifier-Less CMOS Potentiostat IC Consuming 3.7nW Power all over 129.5dB Dynamic Range for Electrochemical Biosensing. ISSCC (2024)
Song-I Cheon, Haidam Choi, Hyoju Kang, Ji-Hoon Suh, Seonghyun Park, Soon-Jae Kweon, Minkyu Je, Sohmyung Ha
Impedance-Readout Integrated Circuits for Electrical Impedance Spectroscopy: Methodological Review. IEEE Trans. Biomed. Circuits Syst. 18 (1) (2024)
Yoontae Jung, Sein Oh, Sohmyung Ha, Minkyu Je
Power-Efficient Second-Order Highpass ΔΣ Capacitance-to-Digital Converter. IEEE J. Solid State Circuits 59 (4) (2024)
Shirin Qaisar, Muhammad Abrar Akram, Muhammad Haris Farooq, Soon-Jae Kweon, Hammad M. Cheema, Sohmyung Ha
An Analog-assisted Fast-transient Digital LDO with a Charge-pump-based Fine Loop Achieving 0.14-mV Output Voltage Ripples. ISCAS (2024)
Kyeongwon Jeong, Sohmyung Ha, Minkyu Je
A 15.4-ENOB, Fourth-Order Truncation-Error-Shaping NS-SAR-Nested ΔΣ Modulator With Boosted Input Impedance and Range for Biosignal Acquisition. IEEE J. Solid State Circuits 59 (2) (2024)
Asra Malik, Soon-Jae Kweon, Karam Ellahi, Muhammad Abrar Akram, Song-I Cheon, Yoontae Jung, Minkyu Je, Hammad M. Cheema, Sohmyung Ha
A High-throughput Impedance Measurement IC with Baseline-Canceling Peak Detector. ISCAS (2024)
Song-I Cheon, Haidam Choi, Gichan Yun, Sein Oh, Ji-Hoon Suh, Sohmyung Ha, Minkyu Je
33.8 A Two-Electrode Bio-Impedance Readout IC with Complex-Domain Noise-Correlated Baseline Cancellation Supporting Sinusoidal Excitation. ISSCC (2024)
Sunglim Han, Hoyong Seong, Sein Oh, Jimin Koo, Hanbit Jin, Hye Jin Kim, Sohmyung Ha, Minkyu Je
A 72-channel Resistive-sensor Interface IC with High Energy Efficiency and a Wide Input Range. ISCAS (2024)
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
Skew-CIM: Process-Variation-Resilient and Energy-Efficient Computation-in-Memory Design Technique With Skewed Weights. IEEE Trans. Circuits Syst. I Regul. Pap. 71 (5) (2024)
Muhammad Haris Farooq, Muhammad Abrar Akram, Shirin Qaisar, Soon-Jae Kweon, Hammad M. Cheema, Sohmyung Ha
A Tri-loop Fast-transient Digital LDO with Adaptive-gain Control and Fine-loop Freezer. ISCAS (2024)
Yegeun Kim, Changhun Seok, Yoontae Jung, Sohmyung Ha, Minkyu Je
A Biopotential Recording IC with <10-ms-Settling Hybrid DC Servo Loop. ISCAS (2024)
Song-I Cheon, Seonghyun Park, Haidam Choi, Yebin Choi, Minho Seok, Young-Ho Cho, Sohmyung Ha, Minkyu Je
Ultrahigh-G Accelerometer Readout IC with Adaptive Gain Path for Shock Resilience. ISCAS (2024)
Haidam Choi, Ji-Hoon Suh, Gichan Yun, Sein Oh, Song-I Cheon, Sohmyung Ha, Minkyu Je
A Low-power Δ-ΔΣ-based Bio-impedance Readout IC with Capacitive-feedback Baseline Cancellation. ISCAS (2024)
Donghyun Youn, Youngin Kim, Injun Choi, Yoontae Jung, Hyuntak Jeon, Kyungtae Lee, Soon-Jae Kweon, Sohmyung Ha, Minkyu Je
A Wide-Dynamic-Range, DC-Coupled, Time-Based Neural-Recording IC With Optimized CCO Frequency. IEEE Access 12 (2024)
Karam Ellahi, Soon-Jae Kweon, Asra Malik, Muhammad Abrar Akram, Song-I Cheon, Yoontae Jung, Minkyu Je, Hammad M. Cheema, Sohmyung Ha
A High-throughput Impedance Measurement IC Using Synchronous Cyclic Integration Technique. ISCAS (2024)
Aida Aberra, Muhammad Abrar Akram, Soon-Jae Kweon, Jongmin Kim, Kim-Hoang Nguyen, Gichan Yun, Minkyu Je, Yong-Ak Song, Sohmyung Ha
A Hybrid High-voltage Regulating Charge Pump for Electrokinetic Concentration. ISCAS (2024)
Jimin Koo, Yoontae Jung, Sein Oh, Sunglim Han, Sohmyung Ha, Minkyu Je
A Reconfigurable Multimodal Sensor Interface IC Based on Direct-Conversion ΔΣ Modulator Structure. ISCAS (2024)
Keonghwan Oh, Mohsin Mohammed, Revathi Sukesan, Aleksa Petkovic, Dipesh Chaudhury, Sohmyung Ha
Optic-Fiber-Based Optogenetic Stimulator With μLED and 3D-Printed Structures for Brain Stimulation. IEEE Access 12 (2024)
Woojin Ahn, Kim-Hoang Nguyen, Jungwoo Lim, Kyou Sik Min, Hoseung Lee, Sohmyung Ha, Minkyu Je
An Energy-Efficient, Scalable Neural Stimulation IC with Adaptive Dynamic Voltage Switching for Cochlear Implant System. ISCAS (2023)
Song-I Cheon, Soon-Jae Kweon, Aida Aberra, Minkyu Je, Sohmyung Ha
Optimal Parameter Design of DAC-Based Sinusoidal Signal Generators for Electrical Impedance Spectroscopy. IEEE Trans. Instrum. Meas. 72 (2023)
Sein Oh, Seunga Park, Yoontae Jung, Jimin Koo, Donghee Cho, Sohmyung Ha, Minkyu Je
A 2.5mW 12MHz-BW 69dB SNDR Passive Bandpass ΔΣ ADC with Highpass Noise-Shaping SAR Quantizers. VLSI Technology and Circuits (2023)
Muhammad Abrar Akram, Sohmyung Ha
A Differential Rectifier With ${V}_{TH}$ Compensation for High-Frequency RF Inputs. IEEE Trans. Biomed. Circuits Syst. 17 (4) (2023)
Chongsoo Jung, Hoyong Seong, Injun Choi, Sohmyung Ha, Minkyu Je
A Process-Scalable Ultra-Low-Voltage Sleep Timer With a Time-Domain Amplifier and a Switch-Less Resistance Multiplier. IEEE J. Solid State Circuits 58 (10) (2023)
Edward Jongyoon Choi, Injun Choi, Vincent Lukito, Dong-Hwi Choi, Donghyeon Yi, Ik-Joon Chang, Sohmyung Ha, Minkyu Je
A 333TOPS/W Logic-Compatible Multi-Level Embedded Flash Compute-In-Memory Macro with Dual-Slope Computation. CICC (2023)
Hoyong Seong, Donghyun Youn, Injun Choi, Junghyup Lee, Sohmyung Ha, Minkyu Je
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. CICC (2023)
Gichan Yun, Kyeongwon Jeong, Haidam Choi, Seunghyeon Nam, Chaerin Oh, Hyunjoo Jenny Lee, Sohmyung Ha, Minkyu Je
A 2pA/√Hz Current-Conveyor-Assisted Ultrasound Receiver with 25pF CMUT Parasitic Capacitance. A-SSCC (2023)
Kyeongwon Jeong, Gichan Yun, Jaesuk Choi, Injun Choi, Jeehoon Son, Jae Youn Hwang, Sohmyung Ha, Minkyu Je
A Wide-Bandwidth Ultrasound Receiver and On-Chip Ultrasound Transmitter for Ultrasound Capsule Endoscopy. IEEE J. Solid State Circuits 58 (10) (2023)
Yoontae Jung, Sein Oh, Jimin Koo, Seunga Park, Ji-Hoon Suh, Donghee Cho, Sohmyung Ha, Minkyu Je
-order Highpass Δ∑ Capacitance-to-Digital Converter. VLSI Technology and Circuits (2023)
Donghee Cho, Hyungjoo Cho, Sein Oh, Yoontae Jung, Sohmyung Ha, Chul Kim, Minkyu Je
A High-Efficiency Single-Mode Dual-Path Buck-Boost Converter With Reduced Inductor Current. IEEE J. Solid State Circuits 58 (3) (2023)
Kyeongwon Jeong, Yoontae Jung, Gichan Yun, Donghyun Youn, Yehhyun Jo, Hyunjoo Jenny Lee, Sohmyung Ha, Minkyu Je
A PVT-Robust AFE-Embedded Error-Feedback Noise-Shaping SAR ADC With Chopper-Based Passive High-Pass IIR Filtering for Direct Neural Recording. IEEE Trans. Biomed. Circuits Syst. 16 (4) (2022)
Kyeongwon Jeong, Gichan Yun, Sohmyung Ha, Minkyu Je
-Order Truncation-Error Shaping and Input-Impedance Boosting for Biosignal Acquisition. VLSI Technology and Circuits (2022)
Ahmed Elsaid, Wanjoo Park, Sohmyung Ha, Yong-Ak Song, Mohamad A. Eid
Effects of Duration and Envelope of Vibrotactile Alerts on Urgency, Annoyance, and Acceptance. AsiaHaptics (2022)
Phan Dang Hung, Hongseok Shin, Yechan Park, Nguyen Kim Hoang, Donghee Cho, Sohmyung Ha, Chul Kim, Minkyu Je
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. VLSI Technology and Circuits (2022)
Soon-Jae Kweon, Jeong-Ho Park, Chong-Ook Park, Hyung-Joun Yoo, Sohmyung Ha
Wireless Kitchen Fire Prevention System Using Electrochemical Carbon Dioxide Gas Sensor for Smart Home. Sensors 22 (11) (2022)
Song-I Cheon, Soon-Jae Kweon, Youngin Kim, Jimin Koo, Sohmyung Ha, Minkyu Je
An Impedance Readout IC with Ratio-Based Measurement Techniques for Electrical Impedance Spectroscopy. Sensors 22 (4) (2022)
Edward Jongyoon Choi, Injun Choi, Chanhee Jeon, Gichan Yun, Donghyeon Yi, Sohmyung Ha, Ik-Joon Chang, Minkyu Je
A 133.6TOPS/W Compute-In-Memory SRAM Macro with Fully Parallel One-Step Multi-Bit Computation. CICC (2022)
Yoontae Jung, Soon-Jae Kweon, Taeju Lee, Kyeongwon Jeong, Sohmyung Ha, Minkyu Je
Dynamic-Range-Enhancement Techniques for Artifact-Tolerant Biopotential-Acquisition ICs. IEEE Trans. Circuits Syst. II Express Briefs 69 (7) (2022)
Donghee Cho, Hyungjoo Cho, Sein Oh, Yoontae Jung, Sohmyung Ha, Chul Kim, Minkyu Je
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. CICC (2022)
Hyungjoo Cho, Ji-Hoon Suh, Chul Kim, Sohmyung Ha, Minkyu Je
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. IEEE Trans. Biomed. Circuits Syst. 16 (5) (2022)
Injun Choi, Edward Jongyoon Choi, Donghyeon Yi, Yoontae Jung, Hoyong Seong, Hyuntak Jeon, Soon-Jae Kweon, Ik-Joon Chang, Sohmyung Ha, Minkyu Je
An SRAM-Based Hybrid Computation-in-Memory Macro Using Current-Reused Differential CCO. IEEE J. Emerg. Sel. Topics Circuits Syst. 12 (2) (2022)
Muhammad Abrar Akram, Sohmyung Ha
A 433.92-MHz CMOS Rectifier with Dynamic VTH-reduction for Wireless Biomedical Implants. BioCAS (2022)
Yoontae Jung, Soon-Jae Kweon, Hyuntak Jeon, Injun Choi, Jimin Koo, Mi Kyung Kim, Hyunjoo Jenny Lee, Sohmyung Ha, Minkyu Je
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. IEEE J. Solid State Circuits 57 (10) (2022)
Soon-Jae Kweon, Ayesha Kajol Rafi, Song-I Cheon, Minkyu Je, Sohmyung Ha
On-Chip Sinusoidal Signal Generators for Electrical Impedance Spectroscopy: Methodological Review. IEEE Trans. Biomed. Circuits Syst. 16 (3) (2022)
Jinuk Kim, Hongseok Shin, Soon-Jae Kweon, Seongwook Lee, Sohmyung Ha, Minkyu Je
A Scalable Readout IC Based on Wideband Noise Cancelling for Full-Rate Scanning of High-Density Microelectrode Arrays. EMBC (2021)
Yechan Park, Seok-Tae Koh, Jeongeun Lee, Hongkyun Kim, Jaesuk Choi, Sohmyung Ha, Chul Kim, Minkyu Je
A Wireless Power and Data Transfer IC for Neural Prostheses Using a Single Inductive Link With Frequency-Splitting Characteristic. IEEE Trans. Biomed. Circuits Syst. 15 (6) (2021)
Jaesuk Choi, Yechan Park, Jung Bum Oh, Jun-Young Kim, Jae Youn Hwang, Sohmyung Ha, Chul Kim, Minkyu Je
f Dynamic Power Consumption. ISSCC (2021)
Muhammad Abrar Akram, In-Chul Hwang, Sohmyung Ha
Power Delivery Networks for Embedded Mobile SoCs: Architectural Advancements and Design Challenges. IEEE Access 9 (2021)
Yechan Park, Seok-Tae Koh, Jeongeun Lee, Hongkyun Kim, Jaesuk Choi, Sohmyung Ha, Chul Kim, Minkyu Je
A Frequency-Splitting-Based Wireless Power and Data Transfer IC for Neural Prostheses with Simultaneous 115mWPower and 2.5Mb/s Forward Data Delivery. ISSCC (2021)
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
An 8MHz 31.25kS/s Impedance-Monitoring IC Based on IF-Sampling Architecture with a Band-Pass Delta-Sigma ADC. VLSI Circuits (2021)
Song-I Cheon, Soon-Jae Kweon, Youngin Kim, Sohmyung Ha, Minkyu Je
A Power-Efficient, Wide-Frequency-Range Impedance Measurement IC Using Frequency-Shift Technique. ISCAS (2021)
Muhammad Abrar Akram, Wook Hong, Sohmyung Ha, In-Chul Hwang
Capacitor-Less Dual-Mode All-Digital LDO With ΔΣ-Modulation-Based Ripple Reduction. IEEE Trans. Circuits Syst. II Express Briefs 68 (5) (2021)
Soon-Jae Kweon, Woojin Yun, Hyunwoo Park, Jeong-Ho Park, Jung Hoon Lee, Jin Lee, Minkyu Je, Sohmyung Ha, Choul-Young Kim
A Precise Lesion Localization System Using a Magnetometer With Real-Time Baseline Cancellation for Laparoscopic Surgery. IEEE Access 9 (2021)
Jaesuk Choi, Sangyeon Youn, Jae Youn Hwang, Sohmyung Ha, Chul Kim, Minkyu Je
Energy-Efficient High-Voltage Pulsers for Ultrasound Transducers. IEEE Trans. Circuits Syst. II Express Briefs 68 (1) (2021)
Song-I Cheon, Soon-Jae Kweon, Youngin Kim, Jimin Koo, Sohmyung Ha, Minkyu Je
A Polar-Demodulation-Based Impedance-Measurement IC Using Frequency-Shift Technique With Low Power Consumption and Wide Frequency Range. IEEE Trans. Biomed. Circuits Syst. 15 (6) (2021)
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
A Self-Powered Wireless Gas Sensor Node Based on Photovoltaic Energy Harvesting. VLSI Circuits (2021)
Donghee Cho, Hongseok Shin, Hyunwoo Park, Sein Oh, Taeju Lee, Sohmyung Ha, Chul Kim, Minkyu Je
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. ESSCIRC (2021)
Hongseok Shin, Doojin Jang, Gyeong-Gu Kang, Jinuk Kim, Chul Kim, Sohmyung Ha, Minkyu Je
A 96.6%-Efficiency Continuous-Input-Current Hybrid Dual-Path Buck-Boost Converter with Single-Mode Operation and Non-Stopping Output Current Delivery. VLSI Circuits (2021)
Yoontae Jung, Soon-Jae Kweon, Hyuntak Jeon, Taeju Lee, Injun Choi, Kyeongwon Jeong, Mi Kyung Kim, Hyunjoo Jenny Lee, Sohmyung Ha, Minkyu Je
A 99.5dB-DR 5kHz-BW Closed-Loop Neural-Recording IC based on Continuous-Time Dynamic-Zoom ΔΣ ADC with Automatic AFE-Gain Control. A-SSCC (2021)
Kai-Wen Yang, Keonghwan Oh, Sohmyung Ha
Challenges in Scaling Down of Free-Floating Implantable Neural Interfaces to Millimeter Scale. IEEE Access 8 (2020)
Muhammad Abrar Akram, In-Chul Hwang, Sohmyung Ha
Architectural Advancement of Digital Low-Dropout Regulators. IEEE Access 8 (2020)
Hongseok Shin, Jinuk Kim, Doojin Jang, Donghee Cho, Yoontae Jung, Hyungjoo Cho, Unbong Lee, Chul Kim, Sohmyung Ha, Minkyu Je
6.7μW Three-Stage Amplifier Capable of Driving 0.5-to-1.9nF Capacitive Load with >0.68MHz GBW without Compensation Zero. VLSI Circuits (2020)
Rajkumar Kubendran, Jongkil Park, Ritvik Sharma, Chul Kim, Siddharth Joshi, Gert Cauwenberghs, Sohmyung Ha
A 4.2-pJ/Conv 10-b Asynchronous ADC with Hybrid Two-Tier Level-Crossing Event Coding. ISCAS (2020)
Saqib Subhan, Sachin Khapli, Yong-Ak Song, Sohmyung Ha
A Fully Differential Potentiostat Circuit with Integrated Time-based ADCs. BioCAS (2019)
Saqib Subhan, Sohmyung Ha
A Harmonic Error Cancellation Method for Accurate Clock-Based Electrochemical Impedance Spectroscopy. IEEE Trans. Biomed. Circuits Syst. 13 (4) (2019)
Chul Kim, Jiwoong Park, Sohmyung Ha, Abraham Akinin, Rajkumar Kubendran, Patrick P. Mercier, Gert Cauwenberghs
A 3 mm × 3 mm Fully Integrated Wireless Power Receiver and Neural Interface System-on-Chip. IEEE Trans. Biomed. Circuits Syst. 13 (6) (2019)
Sohmyung Ha, Chul Kim, Jiwoong Park, Gert Cauwenberghs, Patrick P. Mercier
A Fully Integrated RF-Powered Energy-Replenishing Current-Controlled Stimulator. IEEE Trans. Biomed. Circuits Syst. 13 (1) (2019)
Neeraj K. Mandloi, Sohmyung Ha
Magnetically Balanced Power and Data Telemetry for mm-scale Neural Implants. EMBC (2018)
Saqib Subhan, Sohmyung Ha
Harmonic Error Cancellation for Accurate Square-wave-based Bio-Impedance Measurements. EMBC (2018)
Chul Kim, Chang-Seok Chae, Young-Sub Yuk, Chris M. Thomas, Yi-Gyeong Kim, Jong-Kee Kwon, Sohmyung Ha, Gert Cauwenberghs, Gyu-Hyeong Cho
Ripple Power-Amplifier Supply Modulator for RF Polar Transmitters. IEEE J. Solid State Circuits 53 (6) (2018)
Jiwoong Park, Chul Kim, Abraham Akinin, Sohmyung Ha, Gert Cauwenberghs, Patrick P. Mercier
Wireless powering of mm-scale fully-on-chip neural interfaces. BioCAS (2017)
Sohmyung Ha, Abraham Akinin, Jiwoong Park, Chul Kim, Hui Wang, Christoph Maier, Patrick P. Mercier, Gert Cauwenberghs
Silicon-Integrated High-Density Electrocortical Interfaces. Proc. IEEE 105 (1) (2017)
Siddharth Joshi, Chul Kim, Sohmyung Ha, Yu Mike Chi, Gert Cauwenberghs
21.7 2pJ/MAC 14b 8×8 linear transform mixed-signal spatial filter in 65nm CMOS with 84dB interference suppression. ISSCC (2017)
Chul Kim, Sohmyung Ha, Abraham Akinin, Jiwoong Park, Rajkumar Kubendran, Hui Wang, Patrick P. Mercier, Gert Cauwenberghs
Design of miniaturized wireless power receivers for mm-sized implants. CICC (2017)
Siddharth Joshi, Chul Kim, Sohmyung Ha, Gert Cauwenberghs
From algorithms to devices: Enabling machine learning through ultra-low-power VLSI mixed-signal array processing. CICC (2017)
Chul Kim, Sohmyung Ha, Jiwoong Park, Abraham Akinin, Patrick P. Mercier, Gert Cauwenberghs
A 144-MHz Fully Integrated Resonant Regulating Rectifier With Hybrid Pulse Modulation for mm-Sized Implants. IEEE J. Solid State Circuits 52 (11) (2017)
Chul Kim, Siddharth Joshi, Chris M. Thomas, Sohmyung Ha, Lawrence E. Larson, Gert Cauwenberghs
A 1.3 mW 48 MHz 4 Channel MIMO Baseband Receiver With 65 dB Harmonic Rejection and 48.5 dB Spatial Signal Separation. IEEE J. Solid State Circuits 51 (4) (2016)
Chul Kim, Jiwoong Park, Abraham Akinin, Sohmyung Ha, Rajkumar Kubendran, Hui Wang, Patrick P. Mercier, Gert Cauwenberghs
A fully integrated 144 MHz wireless-power-receiver-on-chip with an adaptive buck-boost regulating rectifier and low-loss H-Tree signal distribution. VLSI Circuits (2016)
Sohmyung Ha, Chul Kim, Jongkil Park, Siddharth Joshi, Gert Cauwenberghs
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. IEEE J. Solid State Circuits 51 (11) (2016)
Sohmyung Ha, Abraham Akinin, Jongkil Park, Chul Kim, Hui Wang, Christoph Maier, Gert Cauwenberghs, Patrick P. Mercier
A 16-channel wireless neural interfacing SoC with RF-powered energy-replenishing adiabatic stimulation. VLSIC (2015)
Chul Kim, Sohmyung Ha, Jiwoong Park, Abraham Akinin, Patrick P. Mercier, Gert Cauwenberghs
A 144MHz integrated resonant regulating rectifier with hybrid pulse modulation. VLSIC (2015)
Chul Kim, Siddharth Joshi, Chris M. Thomas, Sohmyung Ha, Abraham Akinin, Lawrence E. Larson, Gert Cauwenberghs
A CMOS 4-channel MIMO baseband receiver with 65dB harmonic rejection over 48MHz and 50dB spatial signal separation over 3MHz at 1.3mW. VLSIC (2015)
Sohmyung Ha, Chul Kim, Yu M. Chi, Abraham Akinin, Christoph Maier, Akinori Ueno, Gert Cauwenberghs
Integrated Circuits and Electrode Interfaces for Noninvasive Physiological Monitoring. IEEE Trans. Biomed. Eng. 61 (5) (2014)
Jongkil Park, Sohmyung Ha, Chul Kim, Siddharth Joshi, Theodore Yu, Wei Ma, Gert Cauwenberghs
A 12.6 mW 8.3 Mevents/s contrast detection 128×128 imager with 75 dB intra-scene DR asynchronous random-access digital readout. BioCAS (2014)
Chul Kim, Sohmyung Ha, Chris M. Thomas, Siddharth Joshi, Jongkil Park, Lawrence E. Larson, Gert Cauwenberghs
A 7.86 mW +12.5 dBm in-band IIP3 8-to-320 MHz capacitive harmonic rejection mixer in 65nm CMOS. ESSCIRC (2014)
Sohmyung Ha, Chul Kim, Jongkil Park, Siddharth Joshi, Gert Cauwenberghs
Energy-recycling integrated 6.78-Mbps data 6.3-mW power telemetry over a single 13.56-MHz inductive link. VLSIC (2014)
Jongkil Park, Sohmyung Ha, Theodore Yu, Emre Neftci, Gert Cauwenberghs
A 65k-neuron 73-Mevents/s 22-pJ/event asynchronous micro-pipelined integrate-and-fire array transceiver. BioCAS (2014)
Sohmyung Ha, Jongkil Park, Yu M. Chi, Jonathan Viventi, John A. Rogers, Gert Cauwenberghs
85 dB dynamic range 1.2 mW 156 kS/s biopotential recording IC for high-density ECoG flexible active electrode array. ESSCIRC (2013)
Sohmyung Ha, Massoud L. Khraiche, Gabriel A. Silva, Gert Cauwenberghs
Direct inductive stimulation for energy-efficient wireless neural interfaces. EMBC (2012)