IEICE Trans

Kiichi NIITSU

Design and Experimental Verification of a 2.1nW 0.018mm² Slope ADC-Based Supply Voltage Monitor for Biofuel-Cell-Powered Supply-Sensing Systems in 180-nm CMOS Guowei CHEN Xujiaming CHEN Kiichi NIITSU
Publication: Publication Date: 2022/10/01 Vol. E105-C No. 10 pp. 565-570 Type of Manuscript: BRIEF PAPER Category: Keyword: biofuel cell, biosensing frontend, sensor interface, slope ADC, supply-sensing, supply voltage monitor,
	Summary \| Full Text:PDF(2MB)

A Solar-Cell-Assisted, 99% Biofuel Cell Area Reduced, Biofuel-Cell-Powered Wireless Biosensing System in 65nm CMOS for Continuous Glucose Monitoring Contact Lenses Guowei CHEN Kiichi NIITSU
Publication: Publication Date: 2022/07/01 Vol. E105-C No. 7 pp. 343-348 Type of Manuscript: BRIEF PAPER Category: Keyword: biofuel cell, biosensing system, CMOS, continuous glucose monitoring, solar cell,
	Summary \| Full Text:PDF(1.3MB)

An FSK Inductive-Coupling Transceiver Using 60mV 0.64fJ/bit 0.0016mm² Load-Modulated Transmitter and LC-Oscillator-Based Receiver in 65nm CMOS for Energy-Budget-Unbalanced Application Kenya HAYASHI Shigeki ARATA Ge XU Shunya MURAKAMI Cong Dang BUI Atsuki KOBAYASHI Kiichi NIITSU
Publication: Publication Date: 2019/07/01 Vol. E102-C No. 7 pp. 585-589 Type of Manuscript: BRIEF PAPER Category: Keyword: FSK, IoT, inductive-coupling, load modulation, low power,
	Summary \| Full Text:PDF(1MB)

A 385×385μm² 0.165V 0.27nW Fully-Integrated Supply-Modulated OOK Transmitter in 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens Kenya HAYASHI Shigeki ARATA Ge XU Shunya MURAKAMI Cong Dang BUI Atsuki KOBAYASHI Kiichi NIITSU
Publication: Publication Date: 2019/07/01 Vol. E102-C No. 7 pp. 590-594 Type of Manuscript: BRIEF PAPER Category: Keyword: continuous glucose monitoring, smart contact lens, low-power, wireless transmitter, glucose fuel cell,
	Summary \| Full Text:PDF(2MB)

Design and Calibration of a Small-Footprint, Low-Frequency, and Low-Power Gate Leakage Timer Using Differential Leakage Technique Yuya NISHIO Atsuki KOBAYASHI Kiichi NIITSU
Publication: Publication Date: 2019/04/01 Vol. E102-C No. 4 pp. 269-275 Type of Manuscript: Special Section PAPER (Special Section on Solid-State Circuit Design — Architecture, Circuit, Device and Design Methodology) Category: Keyword: biosensor, CMOS, healthcare IoT, low-power technique, supply sensing,
	Summary \| Full Text:PDF(1.2MB)

Sub-1-V CMOS-Based Electrophoresis Using Electroless Gold Plating for Small-Form-Factor Biomolecule Manipulation Yuuki YAMAJI Kazuo NAKAZATO Kiichi NIITSU
Publication: Publication Date: 2017/06/01 Vol. E100-C No. 6 pp. 592-596 Type of Manuscript: BRIEF PAPER Category: Keyword: CMOS, electrophoresis, µ-TAS, sample/hold circuit, electroless gold plating,
	Summary \| Full Text:PDF(1.1MB)

Design and Analysis of Scalability in Current-Mode Analog-to-Time Converter for an Energy-Efficient and High-Resolution CMOS Biosensor Array Kei IKEDA Atsuki KOBAYASHI Kazuo NAKAZATO Kiichi NIITSU
Publication: Publication Date: 2017/06/01 Vol. E100-C No. 6 pp. 597-601 Type of Manuscript: BRIEF PAPER Category: Keyword: bioimaging, time-domain, current-mode,
	Summary \| Full Text:PDF(1.2MB)

A Current-Integration-Based CMOS Amperometric Sensor with 1024 × 1024 Bacteria-Sized Microelectrode Array for High-Sensitivity Bacteria Counting Kohei GAMO Kazuo NAKAZATO Kiichi NIITSU
Publication: Publication Date: 2017/06/01 Vol. E100-C No. 6 pp. 602-606 Type of Manuscript: BRIEF PAPER Category: Keyword: amperometry, microelectrode array, electroless plating, potentiostat,
	Summary \| Full Text:PDF(2MB)

Well-Shaped Microelectrode Array Structure for High-Density CMOS Amperometric Electrochemical Sensor Array Kiichi NIITSU Tsuyoshi KUNO Masayuki TAKIHI Kazuo NAKAZATO
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2016/06/01 Vol. E99-C No. 6 pp. 663-666 Type of Manuscript: BRIEF PAPER Category: Keyword: MEA, CMOS, analog circuit, amperometry, electrochemical sensor, 3D structure,
	Summary \| Full Text:PDF(590.3KB)

A Feed-Forward Time Amplifier Using a Phase Detector and Variable Delay Lines Kiichi NIITSU Naohiro HARIGAI Takahiro J. YAMAGUCHI Haruo KOBAYASHI
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2013/06/01 Vol. E96-C No. 6 pp. 920-922 Type of Manuscript: BRIEF PAPER Category: Keyword: time amplifier, feed-forward, CMOS, integrated circuits, design for testability,
	Summary \| Full Text:PDF(676.9KB)

Two-Tone Signal Generation for ADC Testing Keisuke KATO Fumitaka ABE Kazuyuki WAKABAYASHI Chuan GAO Takafumi YAMADA Haruo KOBAYASHI Osamu KOBAYASHI Kiichi NIITSU
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2013/06/01 Vol. E96-C No. 6 pp. 850-858 Type of Manuscript: Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies) Category: Keyword: ADC testing, two-tone signal, intermodulation distortion, arbitrary waveform generator, ΣΔ DAC, digital pre-distortion, distortion shaping,
	Summary \| Full Text:PDF(5.2MB)

Design for Testability That Reduces Linearity Testing Time of SAR ADCs Tomohiko OGAWA Haruo KOBAYASHI Satoshi UEMORI Yohei TAN Satoshi ITO Nobukazu TAKAI Takahiro J. YAMAGUCHI Kiichi NIITSU
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2011/06/01 Vol. E94-C No. 6 pp. 1061-1064 Type of Manuscript: BRIEF PAPER Category: Keyword: SAR ADC, testing, DC linearity, design for testability, built-in self-test,
	Summary \| Full Text:PDF(462.8KB)

Daisy Chain Transmitter for Power Reduction in Inductive-Coupling CMOS Link Kiichi NIITSU Noriyuki MIURA Mari INOUE Yoshihiro NAKAGAWA Masamoto TAGO Masayuki MIZUNO Takayasu SAKURAI Tadahiro KURODA
Publication: IEICE TRANSACTIONS on Electronics Publication Date: 2007/04/01 Vol. E90-C No. 4 pp. 829-835 Type of Manuscript: Special Section PAPER (Special Section on Low-Power, High-Speed LSIs and Related Technologies) Category: Analog and Communications Keyword: low power, daisy chain, inductive coupling, wide bandwidth,
	Summary \| Full Text:PDF(1.7MB)