Akira MATSUZAWA


A 28-GHz Fractional-N Frequency Synthesizer with Reference and Frequency Doublers for 5G Mobile Communications in 65nm CMOS
Hanli LIU Teerachot SIRIBURANON Kengo NAKATA Wei DENG Ju Ho SON Dae Young LEE Kenichi OKADA Akira MATSUZAWA 
Publication:   
Publication Date: 2018/04/01
Vol. E101-C  No. 4  pp. 187-196
Type of Manuscript:  Special Section PAPER (Special Section on Solid-State Circuit Design — Architecture, Circuit, Device and Design Methodology)
Category: 
Keyword: 
5G communicationsCMOS28GHzfractional-N frequency synthesizerphase noisespur
 Summary | Full Text:PDF(2MB)

A Consideration of Threshold Voltage Mismatch Effects and a Calibration Technique for Current Mirror Circuits
Tohru KANEKO Koji HIROSE Akira MATSUZAWA 
Publication:   
Publication Date: 2018/04/01
Vol. E101-C  No. 4  pp. 224-232
Type of Manuscript:  Special Section PAPER (Special Section on Solid-State Circuit Design — Architecture, Circuit, Device and Design Methodology)
Category: 
Keyword: 
current mirrorCMOScalibrationbody bias control
 Summary | Full Text:PDF(1.1MB)

A 7GS/s Complete-DDFS-Solution in 65nm CMOS
Abdel MARTINEZ ALONSO Masaya MIYAHARA Akira MATSUZAWA 
Publication:   
Publication Date: 2018/04/01
Vol. E101-C  No. 4  pp. 206-217
Type of Manuscript:  Special Section PAPER (Special Section on Solid-State Circuit Design — Architecture, Circuit, Device and Design Methodology)
Category: 
Keyword: 
complete-DDFS-solutionhigh-speed DDFSCMOSRDACRSTC-DEMrail-to-rail operationtwo-times interleaved
 Summary | Full Text:PDF(4.6MB)

A 72.4dB-SNDR 20MHz-Bandwidth Continuous-Time ΔΣ ADC with High-Linearity Gm-Cells
Tohru KANEKO Yuya KIMURA Masaya MIYAHARA Akira MATSUZAWA 
Publication:   
Publication Date: 2018/04/01
Vol. E101-C  No. 4  pp. 197-205
Type of Manuscript:  Special Section PAPER (Special Section on Solid-State Circuit Design — Architecture, Circuit, Device and Design Methodology)
Category: 
Keyword: 
delta sigma modulatorCMOShigh linearity
 Summary | Full Text:PDF(1.9MB)

A Low-Power Pulse-Shaped Duobinary ASK Modulator for IEEE 802.11ad Compliant 60GHz Transmitter in 65nm CMOS
Bangan LIU Yun WANG Jian PANG Haosheng ZHANG Dongsheng YANG Aravind Tharayil NARAYANAN Dae Young LEE Sung Tae CHOI Rui WU Kenichi OKADA Akira MATSUZAWA 
Publication:   
Publication Date: 2018/02/01
Vol. E101-C  No. 2  pp. 126-134
Type of Manuscript:  PAPER
Category: Electronic Circuits
Keyword: 
60-GHz5G communicationspectrum mask compliantduobinarysemi-digital FIR
 Summary | Full Text:PDF(2MB)

A Wide Bandwidth Current Mode Filter Technique Using High Power Efficiency Current Amplifiers with Complementary Input
Tohru KANEKO Yuya KIMURA Masaya MIYAHARA Akira MATSUZAWA 
Publication:   
Publication Date: 2017/06/01
Vol. E100-C  No. 6  pp. 539-547
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Their Application Technologies)
Category: 
Keyword: 
current amplifierCMOScomplementary inputwide bandwidthlow pass filter
 Summary | Full Text:PDF(2.2MB)

High Resolution Mixed-Domain Delta-Sigma Time-to-Digital Converter Using Compensated Charge-Pump Integrator
Anugerah FIRDAUZI Zule XU Masaya MIYAHARA Akira MATSUZAWA 
Publication:   
Publication Date: 2017/06/01
Vol. E100-C  No. 6  pp. 548-559
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Their Application Technologies)
Category: 
Keyword: 
charge-pumpdelta-sigmaSAR ADCtime-to-digital converter
 Summary | Full Text:PDF(2.3MB)

Physical-Weight-Based Measurement Methodology Suppressing Noise or Reducing Test Time for High-Resolution Low-Speed ADCs
Mitsutoshi SUGAWARA Zule XU Akira MATSUZAWA 
Publication:   
Publication Date: 2017/06/01
Vol. E100-C  No. 6  pp. 576-583
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Their Application Technologies)
Category: 
Keyword: 
AD converterDA convertermeasurementslow-ramphistogram methodmoment methodmissing code
 Summary | Full Text:PDF(1.5MB)

A 20-GHz Differential Push-Push VCO for 60-GHz Frequency Synthesizer toward 256 QAM Wireless Transmission in 65-nm CMOS
Yun WANG Makihiko KATSURAGI Kenichi OKADA Akira MATSUZAWA 
Publication:   
Publication Date: 2017/06/01
Vol. E100-C  No. 6  pp. 568-575
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Their Application Technologies)
Category: 
Keyword: 
CMOSpush-push VCOinjection locking oscillatorlow phase noise256 QAM transceiver
 Summary | Full Text:PDF(1.5MB)

A Fully-Synthesizable 10.06Gbps 16.1mW Injection-Locked CDR in 28nm FDSOI
Aravind THARAYIL NARAYANAN Wei DENG Dongsheng YANG Rui WU Kenichi OKADA Akira MATSUZAWA 
Publication:   
Publication Date: 2017/03/01
Vol. E100-C  No. 3  pp. 259-267
Type of Manuscript:  Special Section PAPER (Special Section on Low-Power and High-Speed Chips)
Category: 
Keyword: 
fully-synthesizableall-digitalclock data recoveryinjection lockingphase-filtering
 Summary | Full Text:PDF(3.8MB)

A Design of Op-Amp Free SAR-VCO Hybrid ADC with 2nd-Order Noise Shaping in 65nm CMOS Technology
Yu HOU Zhijie CHEN Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/12/01
Vol. E99-A  No. 12  pp. 2473-2482
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: 
Keyword: 
Op-amp freeSARVCOhybrid1-1 MASH ADC
 Summary | Full Text:PDF(2MB)

Synthesis and Automatic Layout of Resistive Digital-to-Analog Converter Based on Mixed-Signal Slice Cell
Mitsutoshi SUGAWARA Kenji MORI Zule XU Masaya MIYAHARA Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/12/01
Vol. E99-A  No. 12  pp. 2435-2443
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: 
Keyword: 
analog synthesisRDACslice-based layoutSKILL language
 Summary | Full Text:PDF(2.2MB)

A 10-bit 6.8-GS/s Direct Digital Frequency Synthesizer Employing Complementary Dual-Phase Latch-Based Architecture
Abdel MARTINEZ ALONSO Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2016/10/01
Vol. E99-C  No. 10  pp. 1200-1210
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: 
Keyword: 
Direct Digital Frequency SynthesizerComplementary Dual-Phase Latch-Based sequencing methoddata sampling rateCMOS
 Summary | Full Text:PDF(2MB)

A 9.35-ENOB, 14.8 fJ/conv.-step Fully-Passive Noise-Shaping SAR ADC
Zhijie CHEN Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2016/08/01
Vol. E99-C  No. 8  pp. 963-973
Type of Manuscript:  PAPER
Category: Electronic Circuits
Keyword: 
fully passive noise shapingcharge-redistributionSAR ADCnoise transfer functionzerospoles
 Summary | Full Text:PDF(2.7MB)

Fully Passive Noise Shaping Techniques in a Charge-Redistribution SAR ADC
Zhijie CHEN Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2016/06/01
Vol. E99-C  No. 6  pp. 623-631
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
fully passiveSAR ADC1st order noise shaping2nd order noise shapingcharge-redistributionnoise transfer function
 Summary | Full Text:PDF(663.8KB)

A 0.0055mm2 480µW Fully Synthesizable PLL Using Stochastic TDC in 28nm FDSOI
Dongsheng YANG Tomohiro UENO Wei DENG Yuki TERASHIMA Kengo NAKATA Aravind Tharayil NARAYANAN Rui WU Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2016/06/01
Vol. E99-C  No. 6  pp. 632-640
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
AD-PLLsynthesizablestochastic TDCstandard cellautomatic place-and-route
 Summary | Full Text:PDF(2MB)

Highly Linear Open-Loop Amplifiers Using Nonlinearity Cancellation and Gain Adapting Techniques
Lilan YU Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2016/06/01
Vol. E99-C  No. 6  pp. 641-650
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
high linearityopen-loop amplifiernonlinearity cancellationgain adapting
 Summary | Full Text:PDF(1.6MB)

An AM-PM Noise Mitigation Technique in Class-C VCO
Kento KIMURA Aravind THARAYIL NARAYANAN Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2015/12/01
Vol. E98-C  No. 12  pp. 1161-1170
Type of Manuscript:  PAPER
Category: Electronic Circuits
Keyword: 
VCOClass-CAM-PM conversionparasitic capacitancecross coupled pairnoise sensitivity
 Summary | Full Text:PDF(1.4MB)

A Constant-Current-Controlled Class-C Voltage-Controlled Oscillator using Self-Adjusting Replica Bias Circuit
Teerachot SIRIBURANON Wei DENG Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2015/06/01
Vol. E98-C  No. 6  pp. 471-479
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
low powerlow phase noiseclass-C VCOstart-upCMOSreplica-bias circuit
 Summary | Full Text:PDF(1.5MB)

A Circuit Technique for Enhancing Gain of Complementary Input Operational Amplifier with High Power Efficiency
Tohru KANEKO Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2015/04/01
Vol. E98-C  No. 4  pp. 315-321
Type of Manuscript:  Special Section PAPER (Special Section on Solid-State Circuit Design---Architecture, Circuit, Device and Design Methodology)
Category: 
Keyword: 
Op-AmpCMOSComplementary InputGain Enhancement
 Summary | Full Text:PDF(618.8KB)

A 60-GHz CMOS Transmitter with Gain-Enhanced On-Chip Antenna for Short-Range Wireless Interconnections
Rui WU Wei DENG Shinji SATO Takuichi HIRANO Ning LI Takeshi INOUE Hitoshi SAKANE Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2015/04/01
Vol. E98-C  No. 4  pp. 304-314
Type of Manuscript:  Special Section PAPER (Special Section on Solid-State Circuit Design---Architecture, Circuit, Device and Design Methodology)
Category: 
Keyword: 
60-GHz transmitterCMOSon-chip antennahelium-3 ion irradiationshort-rangehigh-data-rate
 Summary | Full Text:PDF(2.2MB)

An All-Digital Reconfigurable Time-Domain ADC for Low-Voltage Sensor Interface in 65nm CMOS Technology
Yu HOU Takamoto WATANABE Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/02/01
Vol. E98-A  No. 2  pp. 466-475
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
all-digitalreconfigurable resolutionTADlow-voltagesensor interface
 Summary | Full Text:PDF(2.6MB)

Sub-Picosecond Resolution and High-Precision TDC for ADPLLs Using Charge Pump and SAR-ADC
Zule XU Seungjong LEE Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/02/01
Vol. E98-A  No. 2  pp. 476-484
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
ADPLLcharge pumpSAR-ADCsub-picosecond resolutionTDCtime-to-charge conversion
 Summary | Full Text:PDF(1.6MB)

Characterization of Crossing Transmission Line Using Two-Port Measurements for Millimeter-Wave CMOS Circuit Design
Korkut Kaan TOKGOZ Kimsrun LIM Seitarou KAWAI Nurul FAJRI Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2015/01/01
Vol. E98-C  No. 1  pp. 35-44
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
crossing transmission linede-embeddingcharacterizationmillimeter-wavereduced port
 Summary | Full Text:PDF(2.2MB)

An Ultra-Low-Voltage, Wide Signal Swing, and Clock-Scalable Dynamic Amplifier Using a Common-Mode Detection Technique
James LIN Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/12/01
Vol. E97-A  No. 12  pp. 2400-2410
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Circuit Design
Keyword: 
clock-scalablecommon-mode voltage detectiondynamic amplifierultra-low-voltagewide signal swing
 Summary | Full Text:PDF(2.4MB)

A Variable-Supply-Voltage 60-GHz PA with Consideration of HCI Issues for TDD Operation
Rui WU Yuuki TSUKUI Ryo MINAMI Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2014/08/01
Vol. E97-C  No. 8  pp. 803-812
Type of Manuscript:  PAPER
Category: Electronic Circuits
Keyword: 
60-GHz PAHCI issuesCMOSmixed analog-digital LDOtime division duplex
 Summary | Full Text:PDF(764.3KB)

A 7-bit 1-GS/s Flash ADC with Background Calibration
Sanroku TSUKAMOTO Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2014/04/01
Vol. E97-C  No. 4  pp. 298-307
Type of Manuscript:  Special Section PAPER (Special Section on Solid-State Circuit Design,---,Architecture, Circuit, Device and Design Methodology)
Category: 
Keyword: 
background calibrationADCoffset cancelinterpolation
 Summary | Full Text:PDF(1.9MB)

Injection Locked Charge-Pump PLL with a Replica of the Ring Oscillator
Jeonghoon HAN Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2014/04/01
Vol. E97-C  No. 4  pp. 316-324
Type of Manuscript:  Special Section PAPER (Special Section on Solid-State Circuit Design,---,Architecture, Circuit, Device and Design Methodology)
Category: 
Keyword: 
Injection-lockring oscillatorlock rangePLL
 Summary | Full Text:PDF(2.8MB)

A 12-bit Interpolated Pipeline ADC Using Body Voltage Controlled Amplifier
Hyunui LEE Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/12/01
Vol. E96-A  No. 12  pp. 2508-2515
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Circuit Design
Keyword: 
analog-to-digital converterinterpolated pipeline topologyamplifierbody voltage control technique
 Summary | Full Text:PDF(2.1MB)

Design of Interpolated Pipeline ADC Using Low-Gain Open-Loop Amplifiers
Hyunui LEE Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2013/06/01
Vol. E96-C  No. 6  pp. 838-849
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
analog-to-digital converterpipeline topologyinterpolationADC performance optimization
 Summary | Full Text:PDF(2.6MB)

A Time-Domain Architecture and Design Method of High Speed A-to-D Converters with Standard Cells
Masao TAKAYAMA Shiro DOSHO Noriaki TAKEDA Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2013/06/01
Vol. E96-C  No. 6  pp. 813-819
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
time-domain architecturetime-to-digital converterinterleavingsuccessive approximation
 Summary | Full Text:PDF(2.6MB)

A Low-Noise High-Dynamic Range Charge Sensitive Amplifier for Gas Particle Detector Pixel Readout LSIs
Fei LI Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2013/06/01
Vol. E96-C  No. 6  pp. 903-911
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
low-noisehigh-dynamicanalog circuitcharge-sensitive amplifierpixel readout LSIparticle detector
 Summary | Full Text:PDF(1008.3KB)

A 20 GHz Push-Push Voltage-Controlled Oscillator Using Second-Harmonic Peaking Technique for a 60 GHz Frequency Synthesizer
Teerachot SIRIBURANON Takahiro SATO Ahmed MUSA Wei DENG Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2013/06/01
Vol. E96-C  No. 6  pp. 804-812
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
low phase noiselow powertail-current modulationimpulse sensitivity functionsuper-harmonic coupled QVCOpush-push VCO
 Summary | Full Text:PDF(2.2MB)

Design of CMOS Low-Noise Analog Circuits for Particle Detector Pixel Readout LSIs
Fei LI Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2013/04/01
Vol. E96-C  No. 4  pp. 568-576
Type of Manuscript:  Special Section PAPER (Special Section on Solid-State Circuit Design—Architecture, Circuit, Device and Design Methodology)
Category: 
Keyword: 
analog circuitparticle detectorpixel readout LSIQpixnoisegainADCoffset calibration
 Summary | Full Text:PDF(1.2MB)

A Study of Stability and Phase Noise of Tail Capacitive-Feedback VCOs
Ahmed MUSA Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2013/04/01
Vol. E96-C  No. 4  pp. 577-585
Type of Manuscript:  Special Section PAPER (Special Section on Solid-State Circuit Design—Architecture, Circuit, Device and Design Methodology)
Category: 
Keyword: 
VCOclass-Ccapacitive feedbackCMOSstabilityimpulse sensitivity function (ISF)
 Summary | Full Text:PDF(3.6MB)

A 6 bit, 7 mW, 700 MS/s Subranging ADC Using CDAC and Gate-Weighted Interpolation
Hyunui LEE Yusuke ASADA Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/02/01
Vol. E96-A  No. 2  pp. 422-433
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
analog-to-digital converter (ADC)Capacitor DAC (CDAC)gate-weighted interpolationdigital offset calibration
 Summary | Full Text:PDF(2.9MB)

Inter-Stage Tunable Notch Filter for a Multi-Band WCDMA Receiver
Toshihiko ITO Masaki KANEMARU Satoshi FURUYA Dong TA NGOC HUY Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/11/01
Vol. E95-C  No. 11  pp. 1776-1782
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
CMOSreceivernotch filtertunablereconfigurable
 Summary | Full Text:PDF(3.4MB)

A Wideband Common-Gate Low-Noise Amplifier Using Capacitive Feedback
Toshihiko ITO Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/10/01
Vol. E95-C  No. 10  pp. 1666-1674
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
LNAwidebandCMOScapacitive-cross-couplingcapacitive feedback
 Summary | Full Text:PDF(2.2MB)

A 0.5-V, 0.05-to-3.2 GHz LC-Based Clock Generator for Substituting Ring Oscillators under Low-Voltage Condition
Wei DENG Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/07/01
Vol. E95-C  No. 7  pp. 1285-1296
Type of Manuscript:  PAPER
Category: Electronic Circuits
Keyword: 
0.5-Vclock generatorfrequency extensionlow-jitterLC-VCO
 Summary | Full Text:PDF(2.6MB)

A 83-dB SFDR 10-MHz Bandwidth Continuous-Time Delta-Sigma Modulator Employing a One-Element-Shifting Dynamic Element Matching
Hong Phuc NINH Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/06/01
Vol. E95-C  No. 6  pp. 1017-1025
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
delta-sigma modulatordynamic element matchingglitch energymismatch
 Summary | Full Text:PDF(1.8MB)

Evaluation of L-2L De-Embedding Method Considering Misalignment of Contact Position for Millimeter-Wave CMOS Circuit Design
Qinghong BU Ning LI Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/05/01
Vol. E95-C  No. 5  pp. 942-948
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
misalignmentde-embeddingmillimeter waveL-2L
 Summary | Full Text:PDF(1.7MB)

A Dual-Conduction Class-C VCO for a Low Supply Voltage
Kenichi OKADA You NOMIYAMA Rui MURAKAMI Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/02/01
Vol. E95-A  No. 2  pp. 506-514
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
VCOclass-Cdual conductionCMOSlow supply voltageimpulse sensitivity function (ISF)
 Summary | Full Text:PDF(1.3MB)

An Analysis on a Dynamic Amplifier and Calibration Methods for a Pseudo-Differential Dynamic Comparator
Daehwa PAIK Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/02/01
Vol. E95-A  No. 2  pp. 456-470
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
dynamic amplifierdynamic comparatorload capacitancebypass currentcalibrationand PVT variation
 Summary | Full Text:PDF(3.2MB)

A 24 dB Gain 51–68 GHz Common Source Low Noise Amplifier Using Asymmetric-Layout Transistors
Ning LI Keigo BUNSEN Naoki TAKAYAMA Qinghong BU Toshihide SUZUKI Masaru SATO Yoichi KAWANO Tatsuya HIROSE Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/02/01
Vol. E95-A  No. 2  pp. 498-505
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
asymmetric-layoutlow noise amplifiermm-Wave60 GHz
 Summary | Full Text:PDF(1.8MB)

Two-Stage Band-Selectable CMOS Power Amplifiers Using Inter-Stage Frequency Tuning
JeeYoung HONG Daisuke IMANISHI Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/02/01
Vol. E95-C  No. 2  pp. 290-296
Type of Manuscript:  PAPER
Category: Electronic Circuits
Keyword: 
CMOSpower amplifiertransformer
 Summary | Full Text:PDF(2MB)

Topology and Design Considerations of 60 GHz CMOS LNAs for Noise Performance Improving
Ning LI Qinghong BU Kota MATSUSHITA Naoki TAKAYAMA Shogo ITO Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/12/01
Vol. E94-C  No. 12  pp. 1881-1888
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
low noise amplifierCMOSmm-wave integrated circuit60 GHz
 Summary | Full Text:PDF(2.2MB)

Tunable CMOS Power Amplifiers for Reconfigurable Transceivers
JeeYoung HONG Daisuke IMANISHI Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/11/01
Vol. E94-A  No. 11  pp. 2394-2401
Type of Manuscript:  PAPER
Category: Circuit Theory
Keyword: 
CMOSpower amplifiertunablereconfigurable
 Summary | Full Text:PDF(2.5MB)

Measurement of Integrated PA-to-LNA Isolation on Si CMOS Chip
Ryo MINAMI JeeYoung HONG Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/06/01
Vol. E94-C  No. 6  pp. 1057-1060
Type of Manuscript:  BRIEF PAPER
Category: 
Keyword: 
CMOSpower amplifiersubstrate couplingTx leakagemutual coupling
 Summary | Full Text:PDF(532.2KB)

A Self-Calibration Technique for Capacitor Mismatch Errors of an Interleaved SAR ADC
Yasuhide KURAMOCHI Masayuki KAWABATA Kouichiro UEKUSA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/11/01
Vol. E93-C  No. 11  pp. 1630-1637
Type of Manuscript:  PAPER
Category: Electronic Circuits
Keyword: 
analog to digital convertercharge redistribution type digital to analog convertersuccessive approximation architecturecalibration technique
 Summary | Full Text:PDF(1.2MB)

A De-Embedding Method Using Different-Length Transmission Lines for mm-Wave CMOS Device Modeling
Naoki TAKAYAMA Kota MATSUSHITA Shogo ITO Ning LI Keigo BUNSEN Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/06/01
Vol. E93-C  No. 6  pp. 812-819
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
de-embeddingS-parameter measurementmm-waveRF CMOStransmission line
 Summary | Full Text:PDF(3.3MB)

A Wide-Tunable LC-Based Voltage-Controlled Oscillator Using a Divide-by-N Injection-Locked Frequency Divider
Shoichi HARA Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/06/01
Vol. E93-C  No. 6  pp. 763-769
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
CMOSVCOdividerinductor
 Summary | Full Text:PDF(2.1MB)

Analysis of Phase Noise Degradation Considering Switch Transistor Capacitances for CMOS Voltage Controlled Oscillators
Rui MURAKAMI Shoichi HARA Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/06/01
Vol. E93-C  No. 6  pp. 777-784
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
CMOSVCOinductorphase noisequality factormultiple divideswitched capacitor
 Summary | Full Text:PDF(1MB)

An 8-Bit 600-MSps Flash ADC Using Interpolating and Background Self-Calibrating Techniques
Daehwa PAIK Yusuke ASADA Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/02/01
Vol. E93-A  No. 2  pp. 402-414
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
analog-to-digital convertercyclic background calibrationself-calibrationinterpolation
 Summary | Full Text:PDF(1.1MB)

Evaluation of a Multi-Line De-Embedding Technique up to 110 GHz for Millimeter-Wave CMOS Circuit Design
Ning LI Kota MATSUSHITA Naoki TAKAYAMA Shogo ITO Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/02/01
Vol. E93-A  No. 2  pp. 431-439
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
CMOS amplifiertransmission linemillimeter wavede-embedding60 GHz
 Summary | Full Text:PDF(1.2MB)

The Optimum Design Methodology of Low-Phase-Noise LC-VCO Using Multiple-Divide Technique
Shoichi HARA Rui MURAKAMI Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/02/01
Vol. E93-A  No. 2  pp. 424-430
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
CMOSVCOdividerinductor
 Summary | Full Text:PDF(558.8KB)

A 0.027-mm2 Self-Calibrating Successive Approximation ADC Core in 0.18-µm CMOS
Yasuhide KURAMOCHI Akira MATSUZAWA Masayuki KAWABATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/02/01
Vol. E92-A  No. 2  pp. 360-366
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
analog to digital convertercharge redistribution type digital to analog convertersuccessive approximation architecturecalibration technique
 Summary | Full Text:PDF(911.4KB)

Digital-Centric RF CMOS Technologies
Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2008/11/01
Vol. E91-C  No. 11  pp. 1720-1725
Type of Manuscript:  INVITED PAPER (Special Section on Microwave and Millimeter-wave Technologies)
Category: 
Keyword: 
CMOSRFanalogdigitaltunerPLLsamplingmixerwireless
 Summary | Full Text:PDF(880.1KB)

Spatial Sensitivity of Capacitors in Distributed Resonators and Its Application to Fine and Wide Frequency Tuning Digital Controlled Oscillators
Win CHAIVIPAS Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2008/06/01
Vol. E91-C  No. 6  pp. 918-927
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
digital controlled oscillatorstransmission linefrequency tuning
 Summary | Full Text:PDF(758.8KB)

Analysis of CMOS Transconductance Amplifiers for Sampling Mixers
Ning LI Win CHAIVIPAS Kenichi OKADA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2008/06/01
Vol. E91-C  No. 6  pp. 871-878
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
Windowed integrationmoving averagetransconductance amplifiersampling mixer
 Summary | Full Text:PDF(619.2KB)

RF Variable-Gain Amplifiers and AGC Loops for Digital TV Receivers
Kunihiko IIZUKA Masato KOUTANI Takeshi MITSUNAKA Hiroshi KAWAMURA Shinji TOYOYAMA Masayuki MIYAMOTO Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2008/06/01
Vol. E91-C  No. 6  pp. 854-861
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
VGAAGCSiGe BiCMOSCMOStunerIIP3linearity
 Summary | Full Text:PDF(987.9KB)

A Performance Model for the Design of Pipelined ADCs with Consideration of Overdrive Voltage and Slewing
Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/02/01
Vol. E91-A  No. 2  pp. 469-475
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
analog to digital converterpipeline operationswitched capacitor amplifierlow voltage operationoverdrive voltage
 Summary | Full Text:PDF(585.4KB)

Digital Calibration Method for Binary-Weighted Current-Steering D/A-Converters without Calibration ADC
Yusuke IKEDA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/06/01
Vol. E90-C  No. 6  pp. 1172-1180
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
digital-to-analog converterdigital calibrationself-calibrationhigh resolution
 Summary | Full Text:PDF(1.1MB)

A Study on Fully Digital Clock Data Recovery Utilizing Time to Digital Converter
Philipus Chandra OH Akira MATSUZAWA Win CHAIVIPAS 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/06/01
Vol. E90-C  No. 6  pp. 1311-1314
Type of Manuscript:  Special Section LETTER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
clock data recoverytime to digital converterphase locked loop
 Summary | Full Text:PDF(316.8KB)

The Effects of Switch Resistances on Pipelined ADC Performances and the Optimization for the Settling Time
Masaya MIYAHARA Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/06/01
Vol. E90-C  No. 6  pp. 1165-1171
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
analog to digital converterpipeline operationswitched capacitor amplifieron resistance
 Summary | Full Text:PDF(589.8KB)

Analysis and Design of Direct Reference Feed-Forward Compensation for Fast-Settling All-Digital Phase-Locked Loop
Win CHAIVIPAS Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/04/01
Vol. E90-C  No. 4  pp. 793-801
Type of Manuscript:  Special Section PAPER (Special Section on Low-Power, High-Speed LSIs and Related Technologies)
Category: Analog and Communications
Keyword: 
all-digital phase locked loopfeed-forwardfast settlingfrequency synthesizer
 Summary | Full Text:PDF(1004KB)

Design Challenges of Analog-to-Digital Converters in Nanoscale CMOS
Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/04/01
Vol. E90-C  No. 4  pp. 779-785
Type of Manuscript:  INVITED PAPER (Special Section on Low-Power, High-Speed LSIs and Related Technologies)
Category: 
Keyword: 
analog circuitsintegrated circuitsanalog-to-digital converterCMOSlow-power operationlow-voltage operationtechnology scaling
 Summary | Full Text:PDF(705.5KB)

Analog IC Technologies for Future Wireless Systems
Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/04/01
Vol. E89-C  No. 4  pp. 446-454
Type of Manuscript:  INVITED PAPER (Special Section on Advanced RF Technologies for Compact Wireless Equipment and Mobile Phones)
Category: 
Keyword: 
analog circuitintegrated circuitwireless systemCMOSanalog to digital converterradio frequency
 Summary | Full Text:PDF(909.8KB)

FOREWORD
Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/03/01
Vol. E89-C  No. 3  pp. 211-212
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(41KB)

Mixed Signal SoC Era
Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/06/01
Vol. E87-C  No. 6  pp. 867-877
Type of Manuscript:  INVITED PAPER (Special Section on Analog Circuit and Device Technologies)
Category: 
Keyword: 
CMOSLSIsystem LSImixed signal technologyanalog circuitLSI designanalog device
 Summary | Full Text:PDF(1.6MB)

Ultralow-Voltage MTCMOS/SOI Circuits for Batteryless Mobile System
Takakuni DOUSEKI Masashi YONEMARU Eiji IKUTA Akira MATSUZAWA Atsushi KAMEYAMA Shunsuke BABA Tohru MOGAMI Hakaru KYURAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/04/01
Vol. E87-C  No. 4  pp. 437-447
Type of Manuscript:  INVITED PAPER (Special Section on Low-Power System LSI, IP and Related Technologies)
Category: 
Keyword: 
ultralow voltageultralow powerMTCMOS/SOIbatterylessambient energy
 Summary | Full Text:PDF(2.5MB)

FOREWORD
Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/02/01
Vol. E87-A  No. 2  pp. 297-297
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(49.3KB)

On Sensor Motion Vector Estimation with Iterative Block Matching and Non-Destructive Image Sensing
Dwi HANDOKO Shoji KAWAHITO Yoshiaki TADOKORO Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/09/25
Vol. E82-C  No. 9  pp. 1755-1763
Type of Manuscript:  Special Section PAPER (Special Issue on Integrated Electronics and New System Paradigms)
Category: Imaging Circuits and Algorithms
Keyword: 
motion vector estimationCMOS image sensornon-destructive image sensinglow power design
 Summary | Full Text:PDF(1.4MB)

A Low Power Data Storage Circuit with an Intermittent Power Supply Scheme for Sub-1 V MT-CMOS LSIs
Hironori AKAMATSU Toru IWATA Hiroyuki YAMAUCHI Hisakazu KOTANI Akira MATSUZAWA Hiro YAMAMOTO Takashi HIRATA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/12/25
Vol. E80-C  No. 12  pp. 1572-1577
Type of Manuscript:  Special Section PAPER (Special Issue on Low-Power and High-Speed LSI Technologies)
Category: 
Keyword: 
multiple-threshold1-voltMT-CMOSdata storage circuitSRAMvirtual power lineintermittent connection
 Summary | Full Text:PDF(633KB)

FOREWORD
Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/04/25
Vol. E80-C  No. 4  pp. 513-514
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(99.5KB)

An Analog Two-Dimensional Discrete Cosine Transform Processor for Focal-Plane Image Compression
Shoji KAWAHITO Makoto YOSHIDA Yoshiaki TADOKORO Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/02/25
Vol. E80-A  No. 2  pp. 283-290
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques for System-on-Chip Integration)
Category: 
Keyword: 
discrete cosine transformanalog parallel processingfocal-plane image compressionsmart image sensorswitched capacitor ciruits
 Summary | Full Text:PDF(618.1KB)

A Video-Rate 10-b Triple-Stage Bi-CMOS A/D Converter
Akira MATSUZAWA Shoichiro TADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1994/12/25
Vol. E77-C  No. 12  pp. 1903-1911
Type of Manuscript:  Special Section PAPER (Special Issue on Multimedia, Analog and Processing LSIs)
Category: Analog LSIs
Keyword: 
analogdata converterA/D convertervideoBi-CMOSsample and holdinterpolationhigh speedhigh resolutioncomparatordifferential amplifiermulti-stagemixed signal
 Summary | Full Text:PDF(755.7KB)

Low-Voltage and Low-Power Circuit Design for Mixed Analog/Digital Systems in Portable Equipment
Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1994/05/25
Vol. E77-C  No. 5  pp. 800-810
Type of Manuscript:  Special Section PAPER (Special Section on the 1993 VLSI Circuits Symposium (Joint Issue with the IEEE Journal of Solid-State Circuits, Vol.29, No.4 April 1994))
Category: 
Keyword: 
 Summary | Full Text:PDF(914.2KB)

A 10-b 300-MHz Interpolated-Parallel A/D Converter
Hiroshi KIMURA Akira MATSUZAWA Takashi NAKAMURA Shigeki SAWADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1993/05/25
Vol. E76-C  No. 5  pp. 778-786
Type of Manuscript:  Special Section PAPER (Special Section on the 1992 VLSI Circuits Symposium (Joint Issue with the IEEE Journal of Solid-State Circuits, Vol.28, No.4 April 1993))
Category: 
Keyword: 
A/D converterparallelinterpolationhigh speedhigh resolutionlinearitycircuitbipolarsubmicrometerfoldingencoderlogic
 Summary | Full Text:PDF(868.4KB)

FOREWORD
Akira MATSUZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1992/03/25
Vol. E75-C  No. 3  pp. 279-279
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(80.6KB)

A Study on Accuracy and Speed of a Transistor with Fine Pattern Emitter
Akira MATSUZAWA Akihiro KANDA Kazuya KIKUCHI Haruyasu YAMADA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1987/04/25
Vol. E70-E  No. 4  pp. 233-235
Type of Manuscript:  Special Section LETTER (Special Issue: Papers from 1987 National Convention IEICE)
Category: Semiconductor Devices and Integrated Circuits
Keyword: 
 Summary | Full Text:PDF(161.1KB)

A Video-Rate 8 bit Parallel A/D Converter Using Trench Isolation
Akira MATSUZAWA Yasuto NAKATSUGI Akihiro KANDA Haruyasu YAMADA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1987/04/25
Vol. E70-E  No. 4  pp. 230-232
Type of Manuscript:  Special Section LETTER (Special Issue: Papers from 1987 National Convention IEICE)
Category: Semiconductor Devices and Integrated Circuits
Keyword: 
 Summary | Full Text:PDF(251.1KB)