Akira HYOGO


25-Gbps 3-mW/Gbps/ch VCSEL Driver Circuit in 65-nm CMOS for Multichannel Optical Transmitter
Toru YAZAKI Norio CHUJO Takeshi TAKEMOTO Hiroki YAMASHITA Akira HYOGO 
Publication:   
Publication Date: 2018/02/01
Vol. E101-A  No. 2  pp. 402-409
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
optical transmitterVCSEL driveroptical interconnectsasymmetric pre-emphasis
 Summary | Full Text:PDF(4.5MB)

A Replica-Amp Gain Enhancement Technique for an Operational Amplifier with Low Mismatch Sensitivity and High Voltage Swing
Junya MATSUNO Masanori FURUTA Tetsuro ITAKURA Tatsuji MATSUURA Akira HYOGO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/02/01
Vol. E99-A  No. 2  pp. 547-554
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
opampgain enhancementreplica amplifier
 Summary | Full Text:PDF(2.4MB)

FOREWORD
Akira HYOGO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2014/06/01
Vol. E97-C  No. 6  pp. 468-468
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(216.6KB)

A Signal Detection Circuit for 8b/10b 2.5 Gb/s Serial Data Communication System in 90 nm CMOS
Kozue SASAKI Hiroki SATO Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/06/01
Vol. E93-C  No. 6  pp. 864-866
Type of Manuscript:  BRIEF PAPER
Category: 
Keyword: 
equalizeradaptiveCMOShigh-speed signal transmissions
 Summary | Full Text:PDF(542.8KB)

FOREWORD
Akira HYOGO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/02/01
Vol. E92-A  No. 2  pp. 349-349
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(60.5KB)

Balanced Three-Phase Active-RC Tow-Thomas Biquad Complex Filter for Wireless Communication Systems
Junya MATSUNO Hiroki SATO Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2008/06/01
Vol. E91-C  No. 6  pp. 945-948
Type of Manuscript:  Special Section LETTER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
three-phaseactive-RCTow-Thomascomplex filter
 Summary | Full Text:PDF(520.3KB)

A High-Q Active Inductor Circuit for Quasi-Millimeter-Wave Frequency Range
Toru MASUDA Yukio HATTORI Hiroki SHIKAMA Akira HYOGO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2008/06/01
Vol. E91-C  No. 6  pp. 862-870
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
active inductoroperational transconductor amplifierSiGe HBT
 Summary | Full Text:PDF(1.2MB) | (Errata[Uploaded on July 1,2008])

Input-Feedforward Two-Path Band-Pass Delta-Sigma Modulator Based on Horizontal or Vertical Opamp Sharing Technique
Naoya WAKI Hiroki SATO Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/02/01
Vol. E91-A  No. 2  pp. 443-453
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
band-pass delta-sigmatwo-pathopamp sharinghigh-pass filter
 Summary | Full Text:PDF(934.6KB)

A High Impedance Current Source Using Active Resistor
Takeshi KOIKE Hiroki SATO Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/06/01
Vol. E90-C  No. 6  pp. 1315-1317
Type of Manuscript:  Special Section LETTER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
current sourcehigh impedanceCMOScircuit design
 Summary | Full Text:PDF(238.1KB)

A Design for Low-Voltage Switched-Opamp with ON-Phase High Open-Loop Gain and OFF-Phase High-Output Impedance
Soichiro OHYAMA Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/06/01
Vol. E87-C  No. 6  pp. 1025-1028
Type of Manuscript:  Special Section LETTER (Special Section on Analog Circuit and Device Technologies)
Category: 
Keyword: 
switched-opampSC circuitslow voltageoutput impedance
 Summary | Full Text:PDF(623.6KB)

A Compact Low Voltage CMOS Exponential Current-to-Voltage Converter Free from Transconductance Parameter Matching between NMOS and PMOS
Makoto YAMAGUCHI Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/06/01
Vol. E87-C  No. 6  pp. 1033-1036
Type of Manuscript:  Special Section LETTER (Special Section on Analog Circuit and Device Technologies)
Category: 
Keyword: 
exponential circuitautomatic gain controlvariable gain amplifier
 Summary | Full Text:PDF(323.6KB)

Mobility Reduction Cancellation Technique for OTA Using MOSFETs Operated in Triode and Saturation Regions
Hayato FUJII Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/06/01
Vol. E87-C  No. 6  pp. 990-995
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit and Device Technologies)
Category: 
Keyword: 
MOSFETOTAmobility reductiontriode regionsaturation region
 Summary | Full Text:PDF(989KB)

A CMOS Current-Mode Band-Pass Filter Using Q-Enhancement Technique
Yuhki MARUYAMA Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/02/01
Vol. E86-A  No. 2  pp. 414-418
Type of Manuscript:  Special Section LETTER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
filterCMOScurrent-modeQ-enhancementarea efficiency
 Summary | Full Text:PDF(752.9KB)

An Equivalent MOSFET Cell Using Adaptively Biased Source-Coupled Pair
Hiroki SATO Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/02/01
Vol. E86-A  No. 2  pp. 357-363
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
MOS analog circuitthreshold voltagesource-coupled pairadaptively bias technique
 Summary | Full Text:PDF(840.7KB)

A Digitally Programmable CMOS Universal Biquad Filter Using Current-Mode Integrators
Yuhki MARUYAMA Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/02/01
Vol. E85-A  No. 2  pp. 316-323
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
filtercurrent-modelossy integratorlossless integratoranalog circuit
 Summary | Full Text:PDF(1.3MB)

2.4-GHz-Band CMOS RF Front-End Building Blocks at a 1.8-V Supply
Hiroshi KOMURASAKI Kazuya YAMAMOTO Hideyuki WAKADA Tetsuya HEIMA Akihiko FURUKAWA Hisayasu SATO Takahiro MIKI Naoyuki KATO Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/02/01
Vol. E85-A  No. 2  pp. 300-308
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
CMOSlow voltageRFS bandfront end
 Summary | Full Text:PDF(1.4MB)

A Phase Compensation Technique without Capacitors for the CMOS Circuit with a Very Low Impedance Terminal
Eitake IBARAGI Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/02/25
Vol. E83-A  No. 2  pp. 236-242
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
analog signal processingMOS analog circuitphase compensationlow impedance
 Summary | Full Text:PDF(432.6KB)

A Very High Output Impedance Tail Current Source for Low Voltage Applications
Eitake IBARAGI Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/02/25
Vol. E83-A  No. 2  pp. 204-209
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
analog signal processingMOS analog circuittail current sourcehigh output impedancelow voltage operation
 Summary | Full Text:PDF(404.7KB)

A CMOS Analog Multiplier Free from Mobility Reduction and Body Effect
Eitake IBARAGI Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/02/25
Vol. E82-A  No. 2  pp. 327-334
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
analog signal processingMOS analog circuitanalog multipliermobility reductionbody effect
 Summary | Full Text:PDF(425.5KB)

Low Voltage High-Speed CMOS Square-Law Composite Transistor Cell
Changku HWANG Akira HYOGO Hong-sun KIM Mohammed ISMAIL Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/02/25
Vol. E82-A  No. 2  pp. 378-379
Type of Manuscript:  Special Section LETTER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
analog signal processingCMOSlow voltagecomposite transistormultiplier
 Summary | Full Text:PDF(143.5KB)

A Current-to-Frequency Converter for Switched-Current Circuits
Yukihiro KURODA Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/02/25
Vol. E81-A  No. 2  pp. 256-257
Type of Manuscript:  Special Section LETTER (Special Section on Analog Circuit Techniques in the Digital-Oriented Era)
Category: 
Keyword: 
current-to-frequency converterswitched-current circuitsSI integratorhold-and-reset switch
 Summary | Full Text:PDF(140.7KB)

A Low Power Dissipation Technique for a Low Voltage OTA
Eitake IBARAGI Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/02/25
Vol. E81-A  No. 2  pp. 237-243
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques in the Digital-Oriented Era)
Category: 
Keyword: 
analog signal processingMOS analog circuitMOS OTAlow voltage power supplylow power dissipation
 Summary | Full Text:PDF(579.2KB)

A Method to Improve CMRR for CMOS Operational Amplifier by Using Feedforward Technique
Eitake IBARAGI Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/02/25
Vol. E80-A  No. 2  pp. 356-359
Type of Manuscript:  Special Section LETTER (Special Section on Analog Circuit Techniques for System-on-Chip Integration)
Category: 
Keyword: 
analog integrated circuitsoperational amplifiercommon-mode gainCMRR
 Summary | Full Text:PDF(212.3KB)

A Synthesis of a Novel Current-Mode Operational Amplifier
Toshiyuki NAGASAKU Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/02/25
Vol. E79-A  No. 2  pp. 224-226
Type of Manuscript:  Special Section LETTER (Special Section on Analog Technologies in Submicron Era)
Category: 
Keyword: 
analog circuitcurrent-mode circuitcurrent-mode operational amplifier
 Summary | Full Text:PDF(155.3KB)

A Design of Novel nVT Level Shift Circuits Using MOSFETs
Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/02/25
Vol. E77-A  No. 2  pp. 394-397
Type of Manuscript:  Special Section LETTER (Special Section on High-Performance MOS Analog Circuits)
Category: 
Keyword: 
MOS analog circuitscircuit theoryanalog circuitselectronic circuitsintegrated circuits
 Summary | Full Text:PDF(197KB)

A Design of 1 V CMOS-OTA with Wide Input Range
Kenji TOYOTA Akira HYOGO Keitaro SEKINE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/02/25
Vol. E77-A  No. 2  pp. 356-362
Type of Manuscript:  Special Section PAPER (Special Section on High-Performance MOS Analog Circuits)
Category: 
Keyword: 
MOS analog circuitscircuit theoryanalog circuitselectronic circuitsintegrated circuits
 Summary | Full Text:PDF(560.7KB)