Kazuki Sobue

20 papers C 1Journal 6Unranked 13
YearRankTypeTitle / Venue / Authors
2023 J jnl
A Rail-to-Rail 12 MS/s 91.3 dB SNDR 94.1 dB DR Two-Step SAR ADC With Integrated Input Buffer Using Predictive Level-Shifting.
IEEE J. Solid State Circuits
Manxin Li, Calvin Yoji Lee, Praveen Kumar Venkatachala, Ahmed ElShater, Yuichi Miyahara, Kazuki Sobue, Koji Tomioka, Un-Ku Moon
2023 — conf
A Rail-to-Rail 12MS 91.3dB SNDR 94.1dB DR Two-Step SAR ADC with Integrated Input Buffer Using Predictive Level-Shifting.
ISSCC
Manxin Li, Calvin Yoji Lee, Ahmed ElShater, Yuichi Miyahara, Kazuki Sobue, Koji Tomioka, Un-Ku Moon
2021 — conf
A Hybrid Continuous Time Incremental and SAR Two-Step ADC with 90.5dB DR over 1MHz BW.
A-SSCC
Yanchao Wang, Siladitya Dey, Tao He, Lukang Shi, Jiawei Zheng, Manjunath Kareppagoudr, Yi Zhang, Kazuki Sobue, Koichi Hamashita, Koji Tomioka, Gabor C. Temes
2020 — conf
A 16b 1.62MS/s Calibration-free SAR ADC with 86.6dB SNDR utilizing DAC Mismatch Cancellation Based on Symmetry.
A-SSCC
Shota Konno, Yuichi Miyahara, Kazuki Sobue, Koichi Hamashita
2020 J jnl
A 951-fs
IEEE J. Solid State Circuits
Hyuk Sun, Kazuki Sobue, Koichi Hamashita, Tejasvi Anand, Un-Ku Moon
2019 J jnl
A 10-mW 16-b 15-MS/s Two-Step SAR ADC With 95-dB DR Using Dual-Deadzone Ring Amplifier.
IEEE J. Solid State Circuits
Ahmed ElShater, Praveen Kumar Venkatachala, Calvin Yoji Lee, Jason Muhlestein, Spencer Leuenberger, Kazuki Sobue, Koichi Hamashita, Un-Ku Moon
2019 — conf
A 10mW 16b 15MS/s Two-Step SAR ADC with 95dB DR Using Dual-Deadzone Ring-Amplifier.
ISSCC
Ahmed ElShater, Calvin Yoji Lee, Praveen Kumar Venkatachala, Jason Muhlestein, Spencer Leuenberger, Kazuki Sobue, Koichi Hamashita, Un-Ku Moon
2018 — conf
A 1.25MS/S Two-Step Incremental ADC with 100DB DR and 110DB SFDR.
VLSI Circuits
Takato Katayama, Shiko Miyashita, Kazuki Sobue, Koichi Hamashita
2018 J jnl
An 11-Bit 250-nW 10-kS/s SAR ADC With Doubled Input Range for Biomedical Applications.
IEEE Trans. Circuits Syst. I Regul. Pap.
Mahmoud Sadollahi, Koichi Hamashita, Kazuki Sobue, Gabor C. Temes
2018 J jnl
An Oversampling Stochastic ADC Using VCO-Based Quantizers.
IEEE Trans. Circuits Syst. I Regul. Pap.
Hyuk Sun, Kazuki Sobue, Koichi Hamashita, Un-Ku Moon
2017 — conf
A 0.951 psrms period jitter, 3.2% modulation range, DSM-free, spread-spectrum PLL.
CICC
Hyuk Sun, Kazuki Sobue, Koichi Hamashita, Tejasvi Anand, Un-Ku Moon
2017 — conf
A two-capacitor SAR-assisted multi-step incremental ADC with a single amplifier achieving 96.6 dB SNDR over 1.2 kHz BW.
CICC
Yi Zhang, Chia-Hung Chen, Tao He, Kazuki Sobue, Koichi Hamashita, Gabor C. Temes
2016 — conf
A 50 MHz bandwidth 54.2 dB SNDR reference-free stochastic ADC using VCO-based quantizers.
A-SSCC
Hyuk Sun, Jason Muhlestein, Spencer Leuenberger, Kazuki Sobue, Koichi Hamashita, Un-Ku Moon
2016 C conf
A power efficient PLL with in-loop-bandwidth spread-spectrum modulation scheme using a charge-based discrete-time loop filter.
ISCAS
Hyuk Sun, Kazuki Sobue, Koichi Hamashita, Un-Ku Moon
2015 — conf
A 19.2-mW, 81.6-dB SNDR, 4-MHz bandwidth delta-sigma modulator with shifted loop delays.
ESSCIRC
Xin Meng, Jinzhou Cao, Tao He, Yi Zhang, Gabor C. Temes, Mitsuru Aniya, Kazuki Sobue, Koichi Hamashita
2014 — conf
A 48 fJ/CS, 74 dB SNDR, 87 dB SFDR, 85 dB THD, 30 MS/s pipelined ADC using hybrid dynamic amplifier.
VLSIC
Hariprasath Venkatram, Taehwan Oh, Kazuki Sobue, Koichi Hamashita, Un-Ku Moon
2013 — conf
Parallel gain enhancement technique for switched-capacitor circuits.
CICC
Hariprasath Venkatram, Benjamin P. Hershberg, Taehwan Oh, Manideep Gande, Kazuki Sobue, Koichi Hamashita, Un-Ku Moon
2012 — conf
A 61.5dB SNDR pipelined ADC using simple highly-scalable ring amplifiers.
VLSIC
Benjamin P. Hershberg, Skyler Weaver, Kazuki Sobue, Seiji Takeuchi, Koichi Hamashita, Un-Ku Moon
2012 J jnl
Ring Amplifiers for Switched Capacitor Circuits.
IEEE J. Solid State Circuits
Benjamin P. Hershberg, Skyler Weaver, Kazuki Sobue, Seiji Takeuchi, Koichi Hamashita, Un-Ku Moon
2012 — conf
Ring amplifiers for switched-capacitor circuits.
ISSCC
Benjamin P. Hershberg, Skyler Weaver, Kazuki Sobue, Seiji Takeuchi, Koichi Hamashita, Un-Ku Moon