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Jeongjin Roh
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Journal Articles
- 2024
- [j38]Hwaseong Shin
, Seokjae Song, Hyunji Jeong
, Quanzhen Duan
, Jeongjin Roh
:
Automatic Tuning of Negative-R Circuit for High-Performance 95-dB DR 5-kHz Bandwidth Continuous-Time Delta-Sigma Modulator. IEEE Trans. Circuits Syst. I Regul. Pap. 71(6): 2473-2482 (2024) - [j37]Taehyun Kim
, Byeongik Kim
, Jeongjin Roh
:
A 54-nA Quiescent Current Capless LDO With -39-dB PSRR at 1 MHz Using a Load-Tracking Bandwidth Extension Technique. IEEE Trans. Circuits Syst. II Express Briefs 71(3): 1556-1560 (2024) - [j36]Quanzhen Duan
, Tao Tao, Wuxiong Weng, Shengming Huang, Yuhua Liang
, Jeongjin Roh
, Xinpeng Xing
:
A Less-Delay and Wide Conversion-Voltage-Range Level Shifter by Using Switched-Capacitor Technique for Power-Efficiency Health Electronics. IEEE Trans. Consumer Electron. 70(1): 2382-2390 (2024) - [j35]Tian Guo
, Quanzhen Duan
, Minseok Lee
, Jeongjin Roh
:
A 464-nA Quiescent Current Buck Converter With 93.7% Peak Efficiency for IoT Devices. IEEE Trans. Ind. Electron. 71(7): 8197-8201 (2024) - 2023
- [j34]Hwaseong Shin
, Quanzhen Duan
, Jaedo Kim
, Sangwook Na
, Jeongjin Roh
:
103.1-dB DR Switched-Resistor Delta-Sigma Modulator With Chopped Negative-R for Suppressing Low-Bandwidth Noise. IEEE Access 11: 104244-104252 (2023) - [j33]Jung Sik Kim
, Khurram Javed, Kyounghyun Min, Jeongjin Roh
:
A 13.5-nA Quiescent Current LDO With Adaptive Ultra-Low-Power Mode for Low-Power IoT Applications. IEEE Trans. Circuits Syst. II Express Briefs 70(9): 3278-3282 (2023) - [j32]Jung Sik Kim
, Khurram Javed, Jeongjin Roh
:
Design of a Low-Power and Area-Efficient LDO Regulator Using a Negative-R-Assisted Technique. IEEE Trans. Circuits Syst. II Express Briefs 70(10): 3892-3896 (2023) - 2022
- [j31]Tian Guo
, Woobin Kang
, Jeongjin Roh
:
A 0.9-μA Quiescent Current High PSRR Low Dropout Regulator Using a Capacitive Feed-Forward Ripple Cancellation Technique. IEEE J. Solid State Circuits 57(10): 3139-3149 (2022) - [j30]Jaedo Kim
, Quanzhen Duan
, Jihun Choi, Chiho Song, Jeongjin Roh
:
A 2.16-μW Low-Power Continuous-Time Delta-Sigma Modulator With Improved-Linearity Gₘ for Wearable ECG Application. IEEE Trans. Circuits Syst. II Express Briefs 69(11): 4223-4227 (2022) - 2021
- [j29]Seokjae Song
, Jaedo Kim
, Jeongjin Roh
:
100.5 dB SNDR Analog Front-End With a Resistor-Based Discrete-Time Delta-Sigma Modulator for Eliminating Switching Noise and Harmonics. IEEE Access 9: 39852-39863 (2021) - [j28]Inho Jeon
, Tian Guo
, Jeongjin Roh
:
300 mA LDO Using 0.94 μA IQ With an Additional Feedback Path for Buffer Turn-off Under Light-Load Conditions. IEEE Access 9: 51784-51792 (2021) - [j27]Jun Tang
, Tian Guo
, Jung Sik Kim
, Jeongjin Roh
:
A Current-Mode Four-Phase Synchronous Buck Converter With Dynamic Dead-Time Control. IEEE Access 9: 81078-81088 (2021) - 2020
- [j26]Jiho Moon
, Jaeseong Lee
, Seungjin Kim
, Gyeongha Ryu
, Ju-Pyo Hong
, Juhyun Lee
, Haifeng Jin
, Jeongjin Roh
:
60-V Non-Inverting Four-Mode Buck-Boost Converter With Bootstrap Sharing for Non-Switching Power Transistors. IEEE Access 8: 208221-208231 (2020) - [j25]Jaedo Kim
, Seokjae Song
, Jeongjin Roh
:
A High Slew-Rate Enhancement Class-AB Operational Transconductance Amplifier (OTA) for Switched-Capacitor (SC) Applications. IEEE Access 8: 226167-226175 (2020) - 2019
- [j24]Seokjae Song, Jaeseong Lee, Jeongjin Roh
:
A 20-MHz bandwidth, 75-dB dynamic range, continuous-time delta-sigma modulator with reduced nonidealities. Int. J. Circuit Theory Appl. 47(8): 1370-1380 (2019) - [j23]Jun Tang
, Jaeseong Lee, Jeongjin Roh
:
Low-Power Fast-Transient Capacitor-Less LDO Regulator With High Slew-Rate Class-AB Amplifier. IEEE Trans. Circuits Syst. II Express Briefs 66-II(2): 462-466 (2019) - 2017
- [j22]Khurram Javed, Jaejin Yeo, Jaeseong Lee, Jeongjin Roh
:
Fast-transient DC-DC converter using a high-performance error amplifier with a rapid output-voltage control technique. Int. J. Circuit Theory Appl. 45(10): 1431-1438 (2017) - [j21]Youngjae Jung, Quanzhen Duan, Jeongjin Roh
:
A 17.4-b Delta-Sigma Capacitance-to-Digital Converter for One-Terminal Capacitive Sensors. IEEE Trans. Circuits Syst. II Express Briefs 64-II(10): 1122-1126 (2017) - 2016
- [j20]Khurram Javed, Jeongjin Roh
:
LDO regulator with high power supply rejection at 10 MHz. IEICE Electron. Express 13(24): 20160665 (2016) - [j19]Quanzhen Duan, Zhidong Wang, Jeongjin Roh
:
A 7.5-μW 0.08-mm2 single-ended SC delta-sigma ADC for acoustic sensor applications. Int. J. Circuit Theory Appl. 44(5): 1173-1185 (2016) - [j18]Quanzhen Duan, Youngjae Jung, Danbi Choi, Jeongjin Roh
, Jongpal Kim:
A 1.2 V 83 dB DR single-ended input SC ΔΣ modulator including a large-swing analog buffer for portable ECG applications. Int. J. Circuit Theory Appl. 44(12): 2164-2173 (2016) - [j17]Younghyun Yoon, Quanzhen Duan, Jaejin Yeo, Jeongjin Roh
, Jongjin Kim, Dongwook Kim:
A Delta-Sigma Modulator for Low-Power Analog Front Ends in Biomedical Instrumentation. IEEE Trans. Instrum. Meas. 65(7): 1530-1539 (2016) - 2015
- [j16]Younghyun Yoon, Danbi Choi, Jeongjin Roh
:
A 0.4 V 63 µW 76.1 dB SNDR 20 kHz Bandwidth Delta-Sigma Modulator Using a Hybrid Switching Integrator. IEEE J. Solid State Circuits 50(10): 2342-2352 (2015) - [j15]Quanzhen Duan, Jeongjin Roh
:
A 1.2-V 4.2- ppm°C High-Order Curvature-Compensated CMOS Bandgap Reference. IEEE Trans. Circuits Syst. I Regul. Pap. 62-I(3): 662-670 (2015) - 2014
- [j14]Youngkook Ahn, Inho Jeon, Jeongjin Roh
:
A Multiphase Buck Converter With a Rotating Phase-Shedding Scheme For Efficient Light-Load Control. IEEE J. Solid State Circuits 49(11): 2673-2683 (2014) - [j13]Jaejin Yeo, Yongsuk Choi, Jeongjin Roh
, Gunhee Han, Youngcheol Chae, Seogheon Ham:
A Current Regulator for Inverter-Based Massively Column-Parallel ΔΣ ADCs. IEEE Trans. Circuits Syst. II Express Briefs 61-II(4): 224-228 (2014) - [j12]Younghyun Yoon, Hyungdong Roh, Jeongjin Roh
:
A True 0.4-V Delta-Sigma Modulator Using a Mixed DDA Integrator Without Clock Boosted Switches. IEEE Trans. Circuits Syst. II Express Briefs 61-II(4): 229-233 (2014) - 2013
- [j11]Youngjae Jung, Hyungdong Roh, Jeongjin Roh
:
An Input-Feedforward Multibit Adder-Less Delta -Sigma Modulator for Ultrasound Imaging Systems. IEEE Trans. Instrum. Meas. 62(8): 2215-2227 (2013) - 2012
- [j10]Youngkil Choi, Wonho Tak, Younghyun Yoon, Jeongjin Roh
, Sunwoo Kwon, Jinseok Koh:
A 0.018% THD+N, 88-dB PSRR PWM Class-D Amplifier for Direct Battery Hookup. IEEE J. Solid State Circuits 47(2): 454-463 (2012) - [j9]Youngkil Choi, Hyungdong Roh, Jeongjin Roh
:
A Bufferless Interface for Single-Ended ECM Sensors. IEEE Trans. Instrum. Meas. 61(2): 513-520 (2012) - 2010
- [j8]Hyunseok Nam, Inseok Kim, Youngkook Ahn, Jeongjin Roh
:
DC-DC switching converter with positive and negative outputs for active-matrix LCD bias. IET Circuits Devices Syst. 4(2): 138-146 (2010) - 2009
- [j7]Hyungdong Roh, Hyoungjoong Kim, Youngkil Choi, Jeongjin Roh
, Yi-Gyeong Kim, Jong-Kee Kwon:
A 0.6-V Delta-Sigma Modulator With Subthreshold-Leakage Suppression Switches. IEEE Trans. Circuits Syst. II Express Briefs 56-II(11): 825-829 (2009) - [j6]Youngkil Choi, Jeongjin Roh
, Hyungdong Roh, Hyunseok Nam, Songjun Lee:
A 99-dB DR Fourth-Order Delta-Sigma Modulator for 20-kHz Bandwidth Sensor Applications. IEEE Trans. Instrum. Meas. 58(7): 2264-2274 (2009) - 2008
- [j5]Jeongjin Roh
, San-Ho Byun, Youngkil Choi, Hyungdong Roh, Yi-Gyeong Kim, Jong-Kee Kwon:
A 0.9-V 60-µW 1-Bit Fourth-Order Delta-Sigma Modulator With 83-dB Dynamic Range. IEEE J. Solid State Circuits 43(2): 361-370 (2008) - [j4]Kyoungsik Kang, Jeongjin Roh
, Youngkil Choi, Hyungdong Roh, Hyunsuk Nam, Songjun Lee:
Class-D Audio Amplifier Using 1-Bit Fourth-Order Delta-Sigma Modulation. IEEE Trans. Circuits Syst. II Express Briefs 55-II(8): 728-732 (2008) - 2005
- [j3]Jeongjin Roh
:
High-performance error amplifier for fast transient DC-DC converters. IEEE Trans. Circuits Syst. II Express Briefs 52-II(9): 591-595 (2005) - 2004
- [j2]Jeongjin Roh
, Jacob A. Abraham:
Subband filtering for time and frequency analysis of mixed-signal circuit testing. IEEE Trans. Instrum. Meas. 53(2): 602-611 (2004) - 2003
- [j1]Jeongjin Roh
, Jacob A. Abraham:
A comprehensive signature analysis scheme for oscillation-test. IEEE Trans. Comput. Aided Des. Integr. Circuits Syst. 22(10): 1409-1423 (2003)
Conference and Workshop Papers
- 2023
- [c12]Jung Sik Kim, Jeongjin Roh:
Design of High PSRR Bandgap Reference Using Impedance-Splitting Negative-R-Assisted Technique. ICECS 2023: 1-4 - [c11]Minseok Lee, Dongsu Lee, Jeongjin Roh:
Bootstrap Capacitor Charge Control Method for GaN-based 4-Switch Buck-Boost Converter. ICECS 2023: 1-4 - [c10]Jaedo Kim, Hwaseong Shin, Sangwook Na, Quanzhen Duan, Jeongjin Roh:
A 860.8-nW Low-Power Continuous-Time Delta-Sigma Modulator With Switched Resistors for Sensor Applications. ISCAS 2023: 1-5 - 2021
- [c9]Inho Jeon, Kyounghyun Min, Jinwoo Park, Jeongjin Roh, Deok-Ju Moon, Hyoung-Rae Kim:
A Constant On-Time Buck Converter with Fully Integrated Average Current Sensing Scheme. ISOCC 2021: 294-295 - 2019
- [c8]Tian Guo, Jiho Moon, Jeongjin Roh:
A Power Supply Rejection Compensated External Capacitor-Less Low Drop-Out Regulator. ISOCC 2019: 54-55 - 2008
- [c7]Youngkil Choi, Hyungdong Roh, Hyunseok Nam, Jeongjin Roh
:
99-dB High-Performance Delta-Sigma Modulator for 20-kHz Bandwidth. DELTA 2008: 75-78 - 2003
- [c6]Hak-soo Yu, Jacob A. Abraham, Sungbae Hwang, Jeongjin Roh:
Efficient loop-back testing of on-chip ADCs and DACs. ASP-DAC 2003: 651-656 - 2000
- [c5]Jeongjin Roh
, Suresh Seshadri, Jacob A. Abraham:
Verification of Delta-Sigma Converters Using Adaptive Regression Modeling. ICCAD 2000: 182-187 - [c4]Jeongjin Roh, Jacob A. Abraham:
A Mixed-Signal BIST Scheme with Time-Division Multiplexing (TDM) Comparator and Counters. VLSI Design 2000: 572- - [c3]Jeongjin Roh, Jacob A. Abraham:
A Comprehensive TDM Comparator Scheme for Effective Analysis of Oscillation-Based Test. VTS 2000: 143-148 - 1999
- [c2]Jeongjin Roh, Jacob A. Abraham:
Subband filtering scheme for analog and mixed-signal circuit testing. ITC 1999: 221-229 - 1998
- [c1]Jeongjin Roh
, David J. Miller:
A New Set Partitioning Method for Wavelet-based Image Coding. ICIP (1) 1998: 102-106
Coauthor Index
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