Shigetaka TAKAGI


Implementation of Low-Noise Switched-Capacitor Low-Pass Filter with Small Capacitance Spread
Retdian NICODIMUS Shigetaka TAKAGI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/02/01
Vol. E96-A  No. 2  pp. 477-485
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
switched-capacitor circuitsSC filtersSC integratorsnoise transfer function
 Summary | Full Text:PDF

Implementation of Low-Noise Switched-Capacitor Integrators with Small Capacitors
Retdian NICODIMUS Shigetaka TAKAGI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/02/01
Vol. E95-A  No. 2  pp. 447-455
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
switched-capacitor circuitsSC filtersSC integratorsnoise transfer function
 Summary | Full Text:PDF

Capacitance Reduction Technique for Switched-Capacitor Circuits Based on Charge Distribution and Partial Charge Transfer
Retdian NICODIMUS Shigetaka TAKAGI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/02/01
Vol. E94-A  No. 2  pp. 625-632
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
switched capacitorfiltercapacitance spread
 Summary | Full Text:PDF

Design of Wideband Linear Voltage-to-Current Converters
Retdian NICODIMUS Shigetaka TAKAGI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/02/01
Vol. E93-A  No. 2  pp. 382-389
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
current-modevoltage-to-current converter
 Summary | Full Text:PDF

Design of Low Power Track and Hold Circuit Based on Two Stage Structure
Takahide SATO Isamu MATSUMOTO Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2008/06/01
Vol. E91-C  No. 6  pp. 894-902
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
track and hold circuitlow power consumptionflash analog to digital convertertwo-stage structure
 Summary | Full Text:PDF

Reduction of Bootstrapped Switch Area Consumption Using Pre-Charge Phase
Retdian A. NICODIMUS Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/02/01
Vol. E91-A  No. 2  pp. 476-482
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
track-and-hold circuitbootstrapped switch
 Summary | Full Text:PDF

Multi-Path Analog Circuits Robust to Digital Substrate Noise
Shigetaka TAKAGI Retdian AGUNG NICODIMUS Kazuyuki WADA Takahide SATO Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/02/01
Vol. E91-A  No. 2  pp. 535-541
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
multi-path structurebalanced-type circuitdigital substrate noiselow-pass filter
 Summary | Full Text:PDF

Jitter Tolerant Continuous-Time Sigma-Delta A-D Converter Employing In-Loop Low-Pass Filter
Daisuke KOBAYASHI Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/02/01
Vol. E90-A  No. 2  pp. 351-357
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
continuous-time sigma-delta modulatorA-D converteroversampling data converterjitter tolerance
 Summary | Full Text:PDF

FOREWORD
Shigetaka TAKAGI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/02/01
Vol. E90-A  No. 2  pp. 309-309
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF

High Speed Transconductance-C-Opamp Integrator Using Current-Feedback Amplifier
Takahide SATO Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/06/01
Vol. E88-C  No. 6  pp. 1166-1171
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit and Device Technologies)
Category: Building Block
Keyword: 
transconductance-C-opamp integratoranalog continuous filtercurrent-feedback amplifier
 Summary | Full Text:PDF

FOREWORD
Shigetaka TAKAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/06/01
Vol. E88-C  No. 6  pp. 1097-1097
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF

Design of Active Shield Circuit with Automatic Tuning Scheme
Retdian Agung NICODIMUS Shigetaka TAKAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/06/01
Vol. E88-C  No. 6  pp. 1196-1202
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit and Device Technologies)
Category: Mixed Signal
Keyword: 
digital noisesubstrate couplingactive noise cancellationactive shield circuitmixed-signal integrated circuits
 Summary | Full Text:PDF

Active Shield Circuit for Digital Noise Suppression in Mixed-Signal Integrated Circuits
Retdian A. NICODIMUS Shigetaka TAKAGI Kazuyuki WADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/02/01
Vol. E88-A  No. 2  pp. 438-443
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
digital noisesubstrate couplingactive noise cancellationactive shield circuitmixed-signal integrated circuits
 Summary | Full Text:PDF

Equivalent Saturated MOSFET Circuit with Wide Input Range
Takahide SATO Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/02/01
Vol. E88-A  No. 2  pp. 431-437
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
MOSFETsaturation regionequivalent MOSFET circuit
 Summary | Full Text:PDF

Design Optimization of Active Shield Circuits for Digital Noise Suppression Based on Average Noise Evaluation
Retdian A. NICODIMUS Hiroto SUZUKI Kazuyuki WADA Shigetaka TAKAGI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/02/01
Vol. E88-A  No. 2  pp. 444-450
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
digital noisesubstrate couplingactive noise cancellationactive shield circuitmixed-signal integrated circuits
 Summary | Full Text:PDF

Rail-to-Rail OTA Based on Signal Decomposition
Nobukazu TAKAI Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/02/01
Vol. E88-A  No. 2  pp. 424-430
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
OTArail-to-rail operationsignal decomposition
 Summary | Full Text:PDF

Capacitance Value Free Switched Capacitor DC-DC Voltage Converter Realizing Arbitrary Rational Conversion Ratio
Kouhei YAMADA Nobuo FUJII Shigetaka TAKAGI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/02/01
Vol. E87-A  No. 2  pp. 344-349
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
switched capacitor circuitvoltage converterDC-DC convertervoltage reference
 Summary | Full Text:PDF

Wide Tuning Range Voltage-Controlled Ring Oscillator
Retdian A. NICODIMUS Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/06/01
Vol. E86-C  No. 6  pp. 1085-1088
Type of Manuscript:  Special Section LETTER (Special Issue on Devices and Circuits for Next Generation Multi-Media Communication Systems)
Category: 
Keyword: 
ring oscillatorvoltage-controlled oscillatorRC delay
 Summary | Full Text:PDF

Mapping Circuit for Rail-to-Rail Operation
Kawori TAKAKUBO Hajime TAKAKUBO Yohei NAGATAKE Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/02/01
Vol. E86-A  No. 2  pp. 350-356
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
mapping circuitinput dynamic rangelow power supplyCMOS voltage subtractorrail-to-rail operation
 Summary | Full Text:PDF

Rail-to-Rail V-I Conversion Using a Pair of Single Channel MOSFETs Operating in Plural Regions
Takahide SATO Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/02/01
Vol. E86-A  No. 2  pp. 327-334
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
rail-to-rail operationV-I converterOTA
 Summary | Full Text:PDF

Fully On-Chip Active Guard Band Circuit for Digital Noise Cancellation
Shigetaka TAKAGI Retdian Agung NICODIMUS Kazuyuki WADA Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/02/01
Vol. E85-A  No. 2  pp. 373-380
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
digital noisesubstrate couplingactive noise cancellation
 Summary | Full Text:PDF

Wide-Input Range Linear Voltage-to-Current Converter Using Equivalent MOSFETs without Cutoff Region
Kazuyuki WADA Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/02/01
Vol. E85-A  No. 2  pp. 347-353
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
voltage-to-current converterlow voltageinput rangelow powerequivalent MOSFET
 Summary | Full Text:PDF

Operational Transconductance Amplifier with Rail-to-Rail Input Stage Using Single Channel Type MOSFETs
Takahide SATO Shigetaka TAKAGI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/02/01
Vol. E85-A  No. 2  pp. 354-359
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
rail-to-rail operationOTAMOSFEToperation region
 Summary | Full Text:PDF

Extension of Current Conveyor Concept and Its Applications
Takahide SATO Kazuyuki WADA Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/02/01
Vol. E85-A  No. 2  pp. 414-421
Type of Manuscript:  PAPER
Category: Analog Signal Processing
Keyword: 
current conveyorOTANICfilter
 Summary | Full Text:PDF

MOSFET Instantaneous Companding Integrator
Nobukazu TAKAI Ken-ichi TAKANO Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/02/01
Vol. E84-A  No. 2  pp. 545-551
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques Supporting the System LSI Era)
Category: 
Keyword: 
MOSFETcompanding circuitintegrator
 Summary | Full Text:PDF

A Novel Design Strategy for Class A CMOS Second Generation Current Conveyors
Sohrab EMAMI Kazuyuki WADA Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/02/01
Vol. E84-A  No. 2  pp. 552-558
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques Supporting the System LSI Era)
Category: 
Keyword: 
current conveyorcurrent-modeCMOS process
 Summary | Full Text:PDF

A Rail-to-Rail CMOS Voltage Follower under Low Power Supply Voltage
Kawori TAKAKUBO Hajime TAKAKUBO Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/02/01
Vol. E84-A  No. 2  pp. 537-544
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques Supporting the System LSI Era)
Category: 
Keyword: 
CMOS voltage followerAB push-pullrail-to-rail operationlow power supply
 Summary | Full Text:PDF

Analog Circuit Designs in the Last Decade and Their Trends toward the 21st Century
Shigetaka TAKAGI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/01/01
Vol. E84-A  No. 1  pp. 68-79
Type of Manuscript:  INVITED PAPER (Special Section on the 10th Anniversary of the IEICE Transactions of Fundamentals: "Last Decade and 21st Century")
Category: 
Keyword: 
current-mode circuithigh-frequency circuitlow power-supply voltage circuitswitched-current circuitexternally linear circuit
 Summary | Full Text:PDF

Low Voltage OTA Using Two-MOSFET Subtractors between Rails
Kawori TAKAKUBO Shigetaka TAKAGI Hajime TAKAKUBO Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/02/25
Vol. E83-A  No. 2  pp. 197-203
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
OTAvoltage subtractorlow power supply
 Summary | Full Text:PDF

A BiCMOS Seventh-Order Lowpass Channel-Select Filter Operating at 2.5 V Supply for a Spread-Spectrum Wireless Receiver
Moonjae JEONG Satoshi TANAKA Shigetaka TAKAGI Nobuo FUJII Hiroshi KAWAMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/02/25
Vol. E83-A  No. 2  pp. 210-219
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
spread-spectrum receiverchannel-select filterlinear phasecontinuous-time filters
 Summary | Full Text:PDF

Zero Common-Mode Gain Fully Balanced Circuit Structure
Moonjae JEONG Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/10/25
Vol. E82-A  No. 10  pp. 2210-2218
Type of Manuscript:  PAPER
Category: Analog Signal Processing
Keyword: 
fully balanced circuit structureintegratorfilter
 Summary | Full Text:PDF

Design of a Novel Linear 3-Input CMOS OTA and Its Application to Filter Realization
Moonjae JEONG Shigetaka TAKAGI Zdzislaw CZARNUL Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/12/25
Vol. E80-A  No. 12  pp. 2548-2554
Type of Manuscript:  PAPER
Category: Analog Signal Processing
Keyword: 
OTAfilternonlinearity cancellation
 Summary | Full Text:PDF

Wide Dynamic Range MOS Analog Inverter
Kawori TAKAKUBO Hajime TAKAKUBO Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/04/25
Vol. E80-C  No. 4  pp. 537-543
Type of Manuscript:  Special Section PAPER (Special Issue on Circuit Technologies for Memory and Analog LSIs)
Category: 
Keyword: 
MOS analog inverterwide dynamic rangeall-pass filter
 Summary | Full Text:PDF

GaAs MESFET Linearized Transconductor and Active Load with no CMFB
Nobukazu TAKAI Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/02/25
Vol. E80-A  No. 2  pp. 321-327
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques for System-on-Chip Integration)
Category: 
Keyword: 
GaAs MESFET amplifieractive loadlow distortion amplifier
 Summary | Full Text:PDF

Topology-Independent Predistortion for Integrator-Based Filters
Kazuyuki WADA Shigetaka TAKAGI Zdzislaw CZARNUL Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/02/25
Vol. E79-A  No. 2  pp. 176-183
Type of Manuscript:  Special Section PAPER (Special Section on Analog Technologies in Submicron Era)
Category: 
Keyword: 
predistortionanalog filterintegrator
 Summary | Full Text:PDF

A Drive of Input and Output Impedance Effects of Functional Blocks into a Frequency Shift of Active Circuits
Kazuyuki WADA Nobuo FUJII Shigetaka TAKAGI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1995/02/25
Vol. E78-A  No. 2  pp. 177-184
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Computer Aided Design)
Category: 
Keyword: 
compensationactive RC filterautomatic filter synthesisfilter tuning
 Summary | Full Text:PDF

Design of Low-Distortion MOS OTA Based on Cross-Coupled Differential Amplifier and Its Application for Active Filters
Koichi ONO Nobuo FUJII Shigetaka TAKAGI Masao HOTTA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/02/25
Vol. E77-A  No. 2  pp. 363-370
Type of Manuscript:  Special Section PAPER (Special Section on High-Performance MOS Analog Circuits)
Category: 
Keyword: 
low-distortion circuitMOS OTAactive filters
 Summary | Full Text:PDF

A Synthesis of Highly Linear MOS Circuits and Their Application to Filter Realization
Shigetaka TAKAGI Zdzislaw CZARNUL Nobuo FUJII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/02/25
Vol. E77-A  No. 2  pp. 351-355
Type of Manuscript:  Special Section PAPER (Special Section on High-Performance MOS Analog Circuits)
Category: 
Keyword: 
MOS circuitsnegative impedance converterfilters
 Summary | Full Text:PDF

Small-Signal High Frequency MOSFET Model Considering Two-Field-Dependent Mobility Effect
Laredj BELABAS Nobuo FUJII Shigetaka TAKAGI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/02/25
Vol. E76-A  No. 2  pp. 193-203
Type of Manuscript:  Special Section PAPER (Special Section on High-Speed Analog Circuits and Signal Processing)
Category: 
Keyword: 
MOSFEThigh frequency modelmobility
 Summary | Full Text:PDF

Design and Implementation of High-Speed and High-Q Active Bandpass Filters with Reduced Sensitivity to Integrator Nonideality
Kazuyuki HORI Shigetaka TAKAGI Tetsuo SATO Akinori NISHIHARA Nobuo FUJII Takeshi YANAGISAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/02/25
Vol. E76-A  No. 2  pp. 174-182
Type of Manuscript:  Special Section PAPER (Special Section on High-Speed Analog Circuits and Signal Processing)
Category: 
Keyword: 
active filtersintegratorspole sensitivity
 Summary | Full Text:PDF

High-Frequency Active Filters for Low-Voltage Applications
Jorge KOYAMA Shigetaka TAKAGI Takeshi YANAGISAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1991/10/25
Vol. E74-C  No. 10  pp. 3316-3325
Type of Manuscript:  PAPER
Category: Electronic Circuits
Keyword: 
 Summary | Full Text:PDF

High-Frequency Active Filters Using Integrators Based on Negative Impedance Converters
Jorge KOYAMA Shigetaka TAKAGI Takeshi YANAGISAWA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1989/02/25
Vol. E72-E  No. 2  pp. 124-129
Type of Manuscript:  PAPER
Category: Electronic Circuits
Keyword: 
 Summary | Full Text:PDF

Highly-Linear Canonical MOSFET-Capacitor Filters
Shigetaka TAKAGI Nobuo FUJII Takeshi YANAGISAWA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1988/06/25
Vol. E71-E  No. 6  pp. 562-566
Type of Manuscript:  PAPER
Category: Analog Signal Processing
Keyword: 
 Summary | Full Text:PDF

A Third-Order High-Frequency Active RC Filters Using Voltage Followers
Shigetaka TAKAGI Nobuo FUJII 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1988/06/25
Vol. E71-E  No. 6  pp. 557-558
Type of Manuscript:  LETTER
Category: Analog Signal Processing
Keyword: 
 Summary | Full Text:PDF