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Publisher: Springer-Verlag (Total: 2351 journals)

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Showing 1 - 200 of 2351 Journals sorted alphabetically
3D Printing in Medicine     Open Access   (Followers: 1)
3D Research     Hybrid Journal   (Followers: 21, SJR: 0.222, CiteScore: 1)
4OR: A Quarterly J. of Operations Research     Hybrid Journal   (Followers: 10, SJR: 0.825, CiteScore: 1)
AAPS J.     Hybrid Journal   (Followers: 22, SJR: 1.118, CiteScore: 4)
AAPS PharmSciTech     Hybrid Journal   (Followers: 7, SJR: 0.752, CiteScore: 3)
Abdominal Imaging     Hybrid Journal   (Followers: 15, SJR: 0.866, CiteScore: 2)
Abhandlungen aus dem Mathematischen Seminar der Universitat Hamburg     Hybrid Journal   (Followers: 4, SJR: 0.439, CiteScore: 0)
Academic Psychiatry     Full-text available via subscription   (Followers: 26, SJR: 0.53, CiteScore: 1)
Academic Questions     Hybrid Journal   (Followers: 8, SJR: 0.106, CiteScore: 0)
Accreditation and Quality Assurance: J. for Quality, Comparability and Reliability in Chemical Measurement     Hybrid Journal   (Followers: 27, SJR: 0.316, CiteScore: 1)
Acoustical Physics     Hybrid Journal   (Followers: 11, SJR: 0.359, CiteScore: 1)
Acoustics Australia     Hybrid Journal   (SJR: 0.232, CiteScore: 1)
Acta Analytica     Hybrid Journal   (Followers: 7, SJR: 0.367, CiteScore: 0)
Acta Applicandae Mathematicae     Hybrid Journal   (Followers: 1, SJR: 0.675, CiteScore: 1)
Acta Biotheoretica     Hybrid Journal   (Followers: 4, SJR: 0.284, CiteScore: 1)
Acta Diabetologica     Hybrid Journal   (Followers: 18, SJR: 1.587, CiteScore: 3)
Acta Endoscopica     Hybrid Journal   (Followers: 1)
acta ethologica     Hybrid Journal   (Followers: 4, SJR: 0.769, CiteScore: 1)
Acta Geochimica     Hybrid Journal   (Followers: 7, SJR: 0.24, CiteScore: 1)
Acta Geodaetica et Geophysica     Hybrid Journal   (Followers: 2, SJR: 0.305, CiteScore: 1)
Acta Geophysica     Hybrid Journal   (Followers: 10, SJR: 0.312, CiteScore: 1)
Acta Geotechnica     Hybrid Journal   (Followers: 7, SJR: 1.588, CiteScore: 3)
Acta Informatica     Hybrid Journal   (Followers: 5, SJR: 0.517, CiteScore: 1)
Acta Mathematica     Hybrid Journal   (Followers: 12, SJR: 7.066, CiteScore: 3)
Acta Mathematica Hungarica     Hybrid Journal   (Followers: 2, SJR: 0.452, CiteScore: 1)
Acta Mathematica Sinica, English Series     Hybrid Journal   (Followers: 6, SJR: 0.379, CiteScore: 1)
Acta Mathematica Vietnamica     Hybrid Journal   (SJR: 0.27, CiteScore: 0)
Acta Mathematicae Applicatae Sinica, English Series     Hybrid Journal   (SJR: 0.208, CiteScore: 0)
Acta Mechanica     Hybrid Journal   (Followers: 21, SJR: 1.04, CiteScore: 2)
Acta Mechanica Sinica     Hybrid Journal   (Followers: 5, SJR: 0.607, CiteScore: 2)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 7, SJR: 0.576, CiteScore: 2)
Acta Meteorologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.638, CiteScore: 1)
Acta Neurochirurgica     Hybrid Journal   (Followers: 6, SJR: 0.822, CiteScore: 2)
Acta Neurologica Belgica     Hybrid Journal   (Followers: 1, SJR: 0.376, CiteScore: 1)
Acta Neuropathologica     Hybrid Journal   (Followers: 4, SJR: 7.589, CiteScore: 12)
Acta Oceanologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.334, CiteScore: 1)
Acta Physiologiae Plantarum     Hybrid Journal   (Followers: 2, SJR: 0.574, CiteScore: 2)
Acta Politica     Hybrid Journal   (Followers: 15, SJR: 0.605, CiteScore: 1)
Activitas Nervosa Superior     Hybrid Journal   (SJR: 0.147, CiteScore: 0)
adhäsion KLEBEN & DICHTEN     Hybrid Journal   (Followers: 8, SJR: 0.103, CiteScore: 0)
ADHD Attention Deficit and Hyperactivity Disorders     Hybrid Journal   (Followers: 23, SJR: 0.72, CiteScore: 2)
Adhesion Adhesives & Sealants     Hybrid Journal   (Followers: 9)
Administration and Policy in Mental Health and Mental Health Services Research     Partially Free   (Followers: 16, SJR: 1.005, CiteScore: 2)
Adsorption     Hybrid Journal   (Followers: 4, SJR: 0.703, CiteScore: 2)
Advances in Applied Clifford Algebras     Hybrid Journal   (Followers: 4, SJR: 0.698, CiteScore: 1)
Advances in Atmospheric Sciences     Hybrid Journal   (Followers: 37, SJR: 0.956, CiteScore: 2)
Advances in Computational Mathematics     Hybrid Journal   (Followers: 19, SJR: 0.812, CiteScore: 1)
Advances in Contraception     Hybrid Journal   (Followers: 3)
Advances in Data Analysis and Classification     Hybrid Journal   (Followers: 55, SJR: 1.09, CiteScore: 1)
Advances in Gerontology     Partially Free   (Followers: 8, SJR: 0.144, CiteScore: 0)
Advances in Health Sciences Education     Hybrid Journal   (Followers: 29, SJR: 1.64, CiteScore: 2)
Advances in Manufacturing     Hybrid Journal   (Followers: 4, SJR: 0.475, CiteScore: 2)
Advances in Polymer Science     Hybrid Journal   (Followers: 45, SJR: 1.04, CiteScore: 3)
Advances in Therapy     Hybrid Journal   (Followers: 5, SJR: 1.075, CiteScore: 3)
Aegean Review of the Law of the Sea and Maritime Law     Hybrid Journal   (Followers: 6)
Aequationes Mathematicae     Hybrid Journal   (Followers: 2, SJR: 0.517, CiteScore: 1)
Aerobiologia     Hybrid Journal   (Followers: 3, SJR: 0.673, CiteScore: 2)
Aesthetic Plastic Surgery     Hybrid Journal   (Followers: 9, SJR: 0.825, CiteScore: 1)
African Archaeological Review     Hybrid Journal   (Followers: 18, SJR: 0.862, CiteScore: 1)
Afrika Matematika     Hybrid Journal   (Followers: 1, SJR: 0.235, CiteScore: 0)
AGE     Hybrid Journal   (Followers: 7)
Ageing Intl.     Hybrid Journal   (Followers: 7, SJR: 0.39, CiteScore: 1)
Aggiornamenti CIO     Hybrid Journal   (Followers: 1)
Aging Clinical and Experimental Research     Hybrid Journal   (Followers: 3, SJR: 0.67, CiteScore: 2)
Agricultural Research     Hybrid Journal   (Followers: 6, SJR: 0.276, CiteScore: 1)
Agriculture and Human Values     Hybrid Journal   (Followers: 14, SJR: 1.173, CiteScore: 3)
Agroforestry Systems     Hybrid Journal   (Followers: 20, SJR: 0.663, CiteScore: 1)
Agronomy for Sustainable Development     Hybrid Journal   (Followers: 12, SJR: 1.864, CiteScore: 6)
AI & Society     Hybrid Journal   (Followers: 8, SJR: 0.227, CiteScore: 1)
AIDS and Behavior     Hybrid Journal   (Followers: 14, SJR: 1.792, CiteScore: 3)
Air Quality, Atmosphere & Health     Hybrid Journal   (Followers: 4, SJR: 0.862, CiteScore: 3)
Akupunktur & Aurikulomedizin     Full-text available via subscription   (Followers: 1)
Algebra and Logic     Hybrid Journal   (Followers: 6, SJR: 0.531, CiteScore: 0)
Algebra Universalis     Hybrid Journal   (Followers: 2, SJR: 0.583, CiteScore: 1)
Algebras and Representation Theory     Hybrid Journal   (Followers: 1, SJR: 1.095, CiteScore: 1)
Algorithmica     Hybrid Journal   (Followers: 9, SJR: 0.56, CiteScore: 1)
Allergo J.     Full-text available via subscription   (Followers: 1, SJR: 0.234, CiteScore: 0)
Allergo J. Intl.     Hybrid Journal   (Followers: 2)
Alpine Botany     Hybrid Journal   (Followers: 5, SJR: 1.11, CiteScore: 3)
ALTEX : Alternatives to Animal Experimentation     Open Access   (Followers: 3)
AMBIO     Hybrid Journal   (Followers: 10, SJR: 1.569, CiteScore: 4)
American J. of Cardiovascular Drugs     Hybrid Journal   (Followers: 16, SJR: 0.951, CiteScore: 3)
American J. of Community Psychology     Hybrid Journal   (Followers: 29, SJR: 1.329, CiteScore: 2)
American J. of Criminal Justice     Hybrid Journal   (Followers: 8, SJR: 0.772, CiteScore: 1)
American J. of Cultural Sociology     Hybrid Journal   (Followers: 16, SJR: 0.46, CiteScore: 1)
American J. of Dance Therapy     Hybrid Journal   (Followers: 4, SJR: 0.181, CiteScore: 0)
American J. of Potato Research     Hybrid Journal   (Followers: 2, SJR: 0.611, CiteScore: 1)
American J. of Psychoanalysis     Hybrid Journal   (Followers: 21, SJR: 0.314, CiteScore: 0)
American Sociologist     Hybrid Journal   (Followers: 13, SJR: 0.35, CiteScore: 0)
Amino Acids     Hybrid Journal   (Followers: 8, SJR: 1.135, CiteScore: 3)
AMS Review     Partially Free   (Followers: 4)
Analog Integrated Circuits and Signal Processing     Hybrid Journal   (Followers: 7, SJR: 0.211, CiteScore: 1)
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 5, SJR: 0.536, CiteScore: 1)
Analysis in Theory and Applications     Hybrid Journal   (Followers: 1)
Analysis of Verbal Behavior     Hybrid Journal   (Followers: 5)
Analytical and Bioanalytical Chemistry     Hybrid Journal   (Followers: 31, SJR: 0.978, CiteScore: 3)
Anatomical Science Intl.     Hybrid Journal   (Followers: 3, SJR: 0.367, CiteScore: 1)
Angewandte Schmerztherapie und Palliativmedizin     Hybrid Journal  
Angiogenesis     Hybrid Journal   (Followers: 3, SJR: 2.177, CiteScore: 5)
Animal Cognition     Hybrid Journal   (Followers: 19, SJR: 1.389, CiteScore: 3)
Annales françaises de médecine d'urgence     Hybrid Journal   (Followers: 1, SJR: 0.192, CiteScore: 0)
Annales Henri Poincaré     Hybrid Journal   (Followers: 3, SJR: 1.097, CiteScore: 2)
Annales mathématiques du Québec     Hybrid Journal   (Followers: 4, SJR: 0.438, CiteScore: 0)
Annali dell'Universita di Ferrara     Hybrid Journal   (SJR: 0.429, CiteScore: 0)
Annali di Matematica Pura ed Applicata     Hybrid Journal   (Followers: 1, SJR: 1.197, CiteScore: 1)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 18, SJR: 1.042, CiteScore: 3)
Annals of Combinatorics     Hybrid Journal   (Followers: 4, SJR: 0.932, CiteScore: 1)
Annals of Data Science     Hybrid Journal   (Followers: 12)
Annals of Dyslexia     Hybrid Journal   (Followers: 10, SJR: 0.85, CiteScore: 2)
Annals of Finance     Hybrid Journal   (Followers: 30, SJR: 0.579, CiteScore: 1)
Annals of Forest Science     Hybrid Journal   (Followers: 7, SJR: 0.986, CiteScore: 2)
Annals of Global Analysis and Geometry     Hybrid Journal   (Followers: 1, SJR: 1.228, CiteScore: 1)
Annals of Hematology     Hybrid Journal   (Followers: 15, SJR: 1.043, CiteScore: 2)
Annals of Mathematics and Artificial Intelligence     Hybrid Journal   (Followers: 13, SJR: 0.413, CiteScore: 1)
Annals of Microbiology     Hybrid Journal   (Followers: 11, SJR: 0.479, CiteScore: 2)
Annals of Nuclear Medicine     Hybrid Journal   (Followers: 4, SJR: 0.687, CiteScore: 2)
Annals of Operations Research     Hybrid Journal   (Followers: 10, SJR: 0.943, CiteScore: 2)
Annals of Ophthalmology     Hybrid Journal   (Followers: 12)
Annals of Regional Science     Hybrid Journal   (Followers: 7, SJR: 0.614, CiteScore: 1)
Annals of Software Engineering     Hybrid Journal   (Followers: 13)
Annals of Solid and Structural Mechanics     Hybrid Journal   (Followers: 9, SJR: 0.239, CiteScore: 1)
Annals of Surgical Oncology     Hybrid Journal   (Followers: 13, SJR: 1.986, CiteScore: 4)
Annals of Telecommunications     Hybrid Journal   (Followers: 9, SJR: 0.223, CiteScore: 1)
Annals of the Institute of Statistical Mathematics     Hybrid Journal   (Followers: 1, SJR: 1.495, CiteScore: 1)
Antonie van Leeuwenhoek     Hybrid Journal   (Followers: 5, SJR: 0.834, CiteScore: 2)
Apidologie     Hybrid Journal   (Followers: 4, SJR: 1.22, CiteScore: 3)
APOPTOSIS     Hybrid Journal   (Followers: 8, SJR: 1.424, CiteScore: 4)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2, SJR: 0.294, CiteScore: 1)
Applications of Mathematics     Hybrid Journal   (Followers: 2, SJR: 0.602, CiteScore: 1)
Applied Biochemistry and Biotechnology     Hybrid Journal   (Followers: 43, SJR: 0.571, CiteScore: 2)
Applied Biochemistry and Microbiology     Hybrid Journal   (Followers: 17, SJR: 0.21, CiteScore: 1)
Applied Cancer Research     Open Access  
Applied Categorical Structures     Hybrid Journal   (Followers: 2, SJR: 0.49, CiteScore: 0)
Applied Composite Materials     Hybrid Journal   (Followers: 49, SJR: 0.58, CiteScore: 2)
Applied Entomology and Zoology     Partially Free   (Followers: 4, SJR: 0.422, CiteScore: 1)
Applied Geomatics     Hybrid Journal   (Followers: 3, SJR: 0.733, CiteScore: 3)
Applied Geophysics     Hybrid Journal   (Followers: 8, SJR: 0.488, CiteScore: 1)
Applied Intelligence     Hybrid Journal   (Followers: 12, SJR: 0.6, CiteScore: 2)
Applied Magnetic Resonance     Hybrid Journal   (Followers: 4, SJR: 0.319, CiteScore: 1)
Applied Mathematics & Optimization     Hybrid Journal   (Followers: 9, SJR: 0.886, CiteScore: 1)
Applied Mathematics - A J. of Chinese Universities     Hybrid Journal   (SJR: 0.17, CiteScore: 0)
Applied Mathematics and Mechanics     Hybrid Journal   (Followers: 5, SJR: 0.461, CiteScore: 1)
Applied Microbiology and Biotechnology     Hybrid Journal   (Followers: 65, SJR: 1.182, CiteScore: 4)
Applied Physics A     Hybrid Journal   (Followers: 10, SJR: 0.481, CiteScore: 2)
Applied Physics B: Lasers and Optics     Hybrid Journal   (Followers: 24, SJR: 0.74, CiteScore: 2)
Applied Psychophysiology and Biofeedback     Hybrid Journal   (Followers: 8, SJR: 0.519, CiteScore: 2)
Applied Research in Quality of Life     Hybrid Journal   (Followers: 12, SJR: 0.316, CiteScore: 1)
Applied Solar Energy     Hybrid Journal   (Followers: 18, SJR: 0.225, CiteScore: 0)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 5, SJR: 0.542, CiteScore: 1)
Aquaculture Intl.     Hybrid Journal   (Followers: 24, SJR: 0.591, CiteScore: 2)
Aquarium Sciences and Conservation     Hybrid Journal   (Followers: 2)
Aquatic Ecology     Hybrid Journal   (Followers: 34, SJR: 0.656, CiteScore: 2)
Aquatic Geochemistry     Hybrid Journal   (Followers: 4, SJR: 0.591, CiteScore: 1)
Aquatic Sciences     Hybrid Journal   (Followers: 13, SJR: 1.109, CiteScore: 3)
Arabian J. for Science and Engineering     Hybrid Journal   (Followers: 5, SJR: 0.303, CiteScore: 1)
Arabian J. of Geosciences     Hybrid Journal   (Followers: 2, SJR: 0.319, CiteScore: 1)
Archaeological and Anthropological Sciences     Hybrid Journal   (Followers: 21, SJR: 1.052, CiteScore: 2)
Archaeologies     Hybrid Journal   (Followers: 12, SJR: 0.224, CiteScore: 0)
Archiv der Mathematik     Hybrid Journal   (Followers: 1, SJR: 0.725, CiteScore: 1)
Archival Science     Hybrid Journal   (Followers: 62, SJR: 0.745, CiteScore: 2)
Archive for History of Exact Sciences     Hybrid Journal   (Followers: 7, SJR: 0.186, CiteScore: 1)
Archive for Mathematical Logic     Hybrid Journal   (Followers: 3, SJR: 0.909, CiteScore: 1)
Archive for Rational Mechanics and Analysis     Hybrid Journal   (SJR: 3.93, CiteScore: 3)
Archive of Applied Mechanics     Hybrid Journal   (Followers: 5, SJR: 0.79, CiteScore: 2)
Archives and Museum Informatics     Hybrid Journal   (Followers: 143, SJR: 0.101, CiteScore: 0)
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 5, SJR: 1.41, CiteScore: 5)
Archives of Dermatological Research     Hybrid Journal   (Followers: 7, SJR: 1.006, CiteScore: 2)
Archives of Environmental Contamination and Toxicology     Hybrid Journal   (Followers: 14, SJR: 0.773, CiteScore: 2)
Archives of Gynecology and Obstetrics     Hybrid Journal   (Followers: 16, SJR: 0.956, CiteScore: 2)
Archives of Microbiology     Hybrid Journal   (Followers: 8, SJR: 0.644, CiteScore: 2)
Archives of Orthopaedic and Trauma Surgery     Hybrid Journal   (Followers: 8, SJR: 1.146, CiteScore: 2)
Archives of Osteoporosis     Hybrid Journal   (Followers: 2, SJR: 0.71, CiteScore: 2)
Archives of Sexual Behavior     Hybrid Journal   (Followers: 10, SJR: 1.493, CiteScore: 3)
Archives of Toxicology     Hybrid Journal   (Followers: 17, SJR: 1.541, CiteScore: 5)
Archives of Virology     Hybrid Journal   (Followers: 5, SJR: 0.973, CiteScore: 2)
Archives of Women's Mental Health     Hybrid Journal   (Followers: 14, SJR: 1.274, CiteScore: 3)
Archivio di Ortopedia e Reumatologia     Hybrid Journal  
Archivum Immunologiae et Therapiae Experimentalis     Hybrid Journal   (Followers: 2, SJR: 0.946, CiteScore: 3)
ArgoSpine News & J.     Hybrid Journal  
Argumentation     Hybrid Journal   (Followers: 6, SJR: 0.349, CiteScore: 1)
Arid Ecosystems     Hybrid Journal   (Followers: 2, SJR: 0.2, CiteScore: 0)
Arkiv för Matematik     Hybrid Journal   (Followers: 1, SJR: 0.766, CiteScore: 1)
Arnold Mathematical J.     Hybrid Journal   (Followers: 1, SJR: 0.355, CiteScore: 0)
Arthropod-Plant Interactions     Hybrid Journal   (Followers: 2, SJR: 0.839, CiteScore: 2)
Arthroskopie     Hybrid Journal   (Followers: 1, SJR: 0.131, CiteScore: 0)
Artificial Intelligence and Law     Hybrid Journal   (Followers: 11, SJR: 0.937, CiteScore: 2)
Artificial Intelligence Review     Hybrid Journal   (Followers: 16, SJR: 0.833, CiteScore: 4)
Artificial Life and Robotics     Hybrid Journal   (Followers: 9, SJR: 0.226, CiteScore: 0)
Asia Europe J.     Hybrid Journal   (Followers: 5, SJR: 0.504, CiteScore: 1)
Asia Pacific Education Review     Hybrid Journal   (Followers: 12, SJR: 0.479, CiteScore: 1)
Asia Pacific J. of Management     Hybrid Journal   (Followers: 16, SJR: 1.185, CiteScore: 2)
Asia-Pacific Education Researcher     Hybrid Journal   (Followers: 12, SJR: 0.353, CiteScore: 1)
Asia-Pacific Financial Markets     Hybrid Journal   (Followers: 2, SJR: 0.187, CiteScore: 0)
Asia-Pacific J. of Atmospheric Sciences     Hybrid Journal   (Followers: 19, SJR: 0.855, CiteScore: 1)
Asian Business & Management     Hybrid Journal   (Followers: 9, SJR: 0.378, CiteScore: 1)
Asian J. of Business Ethics     Hybrid Journal   (Followers: 9)
Asian J. of Criminology     Hybrid Journal   (Followers: 6, SJR: 0.543, CiteScore: 1)
AStA Advances in Statistical Analysis     Hybrid Journal   (Followers: 3, SJR: 0.548, CiteScore: 1)
AStA Wirtschafts- und Sozialstatistisches Archiv     Hybrid Journal   (Followers: 5, SJR: 0.183, CiteScore: 0)
ästhetische dermatologie & kosmetologie     Full-text available via subscription  

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Journal Cover
Analog Integrated Circuits and Signal Processing
Journal Prestige (SJR): 0.211
Citation Impact (citeScore): 1
Number of Followers: 7  
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1573-1979 - ISSN (Online) 0925-1030
Published by Springer-Verlag Homepage  [2351 journals]
  • Introduction to the special issue on “High performance analog circuits
           and design methodologies”
    • Authors: Toshihiko Hamasaki; Katsu Nakamura
      Pages: 193 - 194
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1333-z
      Issue No: Vol. 97, No. 2 (2018)
  • Three stages CMOS operational amplifier frequency compensation using
           single Miller capacitor and differential feedback path
    • Authors: Sadegh Biabanifard; S. Mehdi Largani; Ali Biamanifard; Mohammad Biabanifard; Marziyeh Hemmati; Zohre Khanmohammadi
      Pages: 195 - 205
      Abstract: This study describes a new and simple frequency compensation for three stages amplifiers based on revered nested Miller compensation (RNMC) structure. Using only one and small compensation capacitor reduced circuit complexity and die area while shows better performance compared to RNMC. Also the proposed method is unconditional stable due to cancellation of second dominant pole by a zero. Ample simulations are performed using HSPICE and TSMC 0.18 µm CMOS technology to verify robustness of presented circuit. Simulation results show 114 dB, 6.66 MHz and 360 µW as DC gain, GBW and power consumption respectively.
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1117-5
      Issue No: Vol. 97, No. 2 (2018)
  • Experimental implementation of a 14 bit 80 kSPS non-binary cyclic ADC
    • Authors: Yuki Watanabe; Hayato Narita; Hiroyuki Tsuchiya; Tatsuji Matsuura; Hao San; Masao Hotta
      Pages: 207 - 214
      Abstract: This paper presents a prototype of 14 bit 80 kSPS non-binary cyclic ADC without high accuracy analog components and complicated digital calibration. Since the redundancy of non-binary ADC tolerates the non-idealities of analog components such as capacitor mismatch and finite amplifier DC gain, the design consideration of this high accuracy ADC can be only focused on the capacitance of sampling capacitor to satisfy the overall kT/C noise target, the drivability and linearity of amplifier without any high accuracy analog components. The proposed proof-of-concept cyclic ADC has been designed and fabricated in TSMC 90 nm CMOS technology. Measured SNDR = 81.9 dB is achieved at Fs = 80 kSPS with a simple radix-value estimation technique. No other complicated digital calibration is used to compensate the non-linearity of ADC caused by MOM capacitors and a poor gain of the amplifier as low as 66 dB. Measured DNL is − 0.6/+ 0.67 LSB and INL is − 1.2/+ 1.6 LSB. Prototype ADC dissipates 8mW at supply voltage is 3.3 V in analog circuits.
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1197-2
      Issue No: Vol. 97, No. 2 (2018)
  • Experimental implementation of $$\Delta \Sigma $$ Δ Σ AD modulator with
           dynamic analog components
    • Authors: Chunhui Pan; Hao San
      Pages: 215 - 223
      Abstract: This paper presents an experimental prototype of 2nd-order multi-bit \(\Delta \Sigma \) AD modulator with dynamic analog components for low power and high signal to noise and distortion (SNDR) application. The integrators in the modulator are realized by ring amplifier without static current. Multi-bit quantizer and analog adder in the feed-forward modulator is realized by a passive-adder embedded successive approximation register analog to digital converter which consists of capacitor array and a dynamic comparator. The dynamic comparator does not dissipate static power at all when a pre-amplifier is not used. Proposed modulator is fabricated in TSMC 90 nm CMOS technology. Measurement results of the modulator dynamic range is over 84 dB. Measured peak SNDR = 77.51 dB, SNR = 80.08 dB are achieved for the bandwidth of BW = 94 kHz while a sinusoid differential \(-1\)  dBFS input is sampled at 12 MS/s. The total analog power consumption of the modulator is 0.37 mW while the supply voltage is 1.1 V.
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1231-4
      Issue No: Vol. 97, No. 2 (2018)
  • On the design of highly linear CMOS digitally programmable operational
           transconductance amplifiers for low and high-frequency applications
    • Authors: Mohamed B. Elamien; Soliman A. Mahmoud
      Pages: 225 - 241
      Abstract: This paper proposes a novel highly linear digitally programmable fully differential operational transconductance amplifier (DPOTA) circuit. Two versions of the proposed DPOTA structure are designed. The first version is optimized for high-frequency operation with current division networks designated to 3-bit control code words. On the other hand, the second version is optimized for low-frequency operation with 4-bit control code words. The third-order harmonic distortion (HD3) of the first DPOTA version remains below − 66 dB up to 0.4 V differential input voltage at 10 MHz frequency. The second DPOTA version achieved HD3 of − 70 dB with an amplitude of 20 mVp–p and at 100 Hz frequency. The proposed circuits are designed and simulated in 90 nm CMOS model, BSIM4 (level 54) under a balanced 1.2 V supply voltage.
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1128-2
      Issue No: Vol. 97, No. 2 (2018)
  • Two-stage unbuffered CFOA based non-inverting resistive-feedback
           amplifier: a study based on the description of the operational
           transconductance conveyor (OTC)
    • Authors: Hervé Barthélemy; Remy Vauché; Valentin Giès; Sylvain Bourdel; Jean Gaubert
      Pages: 243 - 252
      Abstract: A study of the non-inverting amplifier based on a two stages CMOS unbuffered current-feedback-operational-amplifier (UCFOA) is proposed in this paper. Using a small-signal equivalent circuit (macro-model) of the non-inverting amplifier, a theoretical explanation of the closed loop gain is given. The opamp phase margin and its bandwidth have been estimated from the quality factor Q of resonance and using a novel description of the UCVFOA input stage called Operational Transconductance Conveyor (OTC). The OTC description can be seen as an extension of type II second generation current conveyors. Based on the fundamental parameters of the proposed OTC, a theoretical approach given in this paper explains how to evaluate precisely the value of the UCFOA compensation capacitance. PSPICE was used to simulate both the theoretical macro-model and the CMOS configuration from a 0.35 μm typical BSIM3V3 transistor models.
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1219-0
      Issue No: Vol. 97, No. 2 (2018)
  • Energy-efficient, fast-settling, modified nested-current-mirror,
           single-stage-amplifier for high-resolution LCDs in 90-nm CMOS
    • Authors: Ali Dadashi; Yngvar Berg; Omid Mirmotahari
      Pages: 253 - 259
      Abstract: A modified nested-current-mirror (NCM) Single-Stage amplifier, for high-performance, liquid crystal display panels, is presented in this paper. The proposed NCM is more than 8 times faster than the original NCM structure, without any extra static power consumption. Slew rate of the NCM is improved 10 times and DC-gain is also improved 6 dB, while the power consumption, gain-bandwidth product, output voltage swing range, and the phase margin of the NCM are not affected to great extent and the input-referred-noise is reduced 12%. Proposed NCMs achieve relatively higher figure of merit in comparison to previously reported NCM amplifiers and other state-of-the-art works. The significant performance improvement is obtained due to a novel slew-rate enhancer circuit. The simulation results for the designed NCM in a typical 90 nm CMOS technology confirm the predicted performance improvements.
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1220-7
      Issue No: Vol. 97, No. 2 (2018)
  • Tensor-based methods for high-power amplifier identification and
           predistortion linearization
    • Authors: Zouhour Ben Ahmed
      Pages: 261 - 267
      Abstract: In this paper, we consider the problem of identification and predistortion of nonlinear high-power amplifier (HPA) using tensor-based methods. The HPA is modeled by a Wiener system structured as a linear time invariant system followed by memoryless nonlinearity. From a third-order Volterra kernel, we show that the linear subsystem of Wiener system can be estimated by means of the singular value decomposition algorithm. Then, the nonlinear subsystem is estimated by means least square algorithm. The identified Wiener PA model will be used to estimate a Hammerstein based predistorter using an adaptive algorithm in order to linearize the HPA. The proposed identification and predistortion methods are illustrated by means of simulation results.
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1245-y
      Issue No: Vol. 97, No. 2 (2018)
  • Wideband transimpedance amplifier using negative capacitance and
           capacitive feedback
    • Authors: Preeti Singh; Maneesha Gupta; Urvashi Bansal
      Pages: 269 - 279
      Abstract: This paper presents a new wideband CMOS transimpedance amplifier (TIA) with low power dissipation. The negative capacitance technique is employed which reduces the parasitic capacitance. Furthermore, capacitive feedback technique is used in order to introduce pole-zero cancellation. Both these techniques, lead to bandwidth extension. Mentor Graphics Eldo simulation tool is used for simulation of the proposed TIA in TSMC 0.18 µm CMOS technology with 50 fF input photodiode capacitance. The simulated results show the − 3 dB bandwidth of 10.1 GHz which is about 8.3 GHz larger than simple TIA, transimpedance gain of 45.75 dBΩ and input current noise is 7.5 pA/√Hz with power consumption of 0.81 mW.
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1246-x
      Issue No: Vol. 97, No. 2 (2018)
  • OTRA, its implementations and applications: a state-of-the-art review
    • Authors: Abdhesh K. Singh; Raj Senani; Ashish Gupta
      Pages: 281 - 311
      Abstract: During the last three decades, a large number of new analog circuit building blocks have emerged beyond the well-known operational amplifier, operational transconductance amplifier, Current Conveyors and Current feedback operational amplifier. Among the new building blocks, the operational transresistance amplifier (OTRA) has received considerable attention in the literature. This paper presents a state-of-the-art review of the OTRAs, their bipolar and CMOS implementations and applications in linear and nonlinear analog signal processing/generation along with a comprehensive list of references covering the period from 1992 till date.
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1311-5
      Issue No: Vol. 97, No. 2 (2018)
  • Design of high-linearity 75–90 GHz CMOS down-conversion mixer
           for automotive radar
    • Authors: Dongfang Pan; Zongming Duan; Lu Huang; Yan Wang; Yang Zhou; Bowen Wu; Liguo Sun
      Pages: 313 - 322
      Abstract: This paper presents a 75–90 GHz down-conversion mixer applied in automotive radar, which is characterized with high linearity, low local oscillator (LO) drive as well as high conversion gain (CG) using TSMC 65-nm CMOS general-purpose technology. The good linearity and isolation of mixer are required for automotive radar to cover short-middle-far range detection. The mixer includes an enhanced double-balanced Gilbert-cell core with series peaking transmission line and source degeneration technique for improving linearity and CG, two on-chip baluns and intermediate frequency (IF) buffer for IF test. Besides, to make the design more accurate and efficient, the modeling and design of millimeter-wave (mm-wave) passive devices are introduced. The mixer consumes 12 mW under 1.5 V. The input 1 dB compression point (P1dB) is 2.5 dBm as well as IIP3 of 13.2 dBm at 80 GHz. High performances are achieved with the CG of 5 dB at 76 GHz with LO power of 0 dBm for frequencies of 75–90 GHz which covers the application of automotive radar frequency band (76–81 GHz) and LO-RF isolation of 33–37 dB for frequencies of 60–90 GHz. The area of the mixer is 0.14 mm2, with PADs included.
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1247-9
      Issue No: Vol. 97, No. 2 (2018)
  • Tunable LNA filter design using coupled-inductor Q-enhancement
    • Authors: Michel Al Khoury; Bernard Jarry; Bruno Barelaud; Julien Lintignat
      Pages: 323 - 332
      Abstract: A tunable LNA filter using Q-enhanced inductors is designed in 0.25 μm BiCMOS Qubic4x technology. The design employs the inductor degenerated LNA, acting as a transconductance which converts the input voltage to output current which drives the second-order Q-enhanced filter. The filter also uses a special technique based on coupled-inductor negative resistance generator to make the quality factor and the center frequency tunable. The overall gain of the LNA filter is about 19.5 dB and the minimum noise figure is 6.4 dB. The center frequency is 942.5 MHz with a 42 MHz (3 dB) bandwidth.
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1248-8
      Issue No: Vol. 97, No. 2 (2018)
  • A highly extended high-efficiency range Doherty power amplifier for high
           PAPR communication signals
    • Authors: Kayvan Ahmadi; Massoud Dousti; Shahrooz Asadi
      Pages: 333 - 341
      Abstract: In this paper, design, simulation and fabrication of a new highly extended high-efficiency range Doherty power amplifier (DPA) for high peak to average power ratio (PAPR) communication signals were presented with a main and only a single auxiliary amplifier. In order to extend the output high-efficiency range, it employed non-equal cells as main and auxiliary amplifiers in the complex combining load (CCL) methodology. As a new method, a new design parameter ( \(\gamma\) ) was added to the conventional complex combining load method. The effect of the new added design parameter on extension of output back-off (OBO) were analyzed and formulated. Also, to verify the proposed methodology, a DPA with 12 dB of OBO was designed, simulated and fabricated for WCDMA applications. Large signal continuous wave measurement results show the power gain of 11 dB with the drain efficiency of 53% at 12 dB of OBO. Two-tone test exhibits the third-order intermodulation distortion lower than − 34 dBc. Modulated wave simulations show over 51% of average drain efficiency and lower than − 31 dBc of adjacent channel leakage power ratio at output power level of 31.5 dBm.
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1280-8
      Issue No: Vol. 97, No. 2 (2018)
  • A 90-nm CMOS 800 MHz 2 $$\times$$ × VDD output buffer with leakage
           detection and output current self-adjustment
    • Authors: Chua-Chin Wang; Tsung-Yi Tsai; Wei Lin
      Pages: 343 - 350
      Abstract: This work presents a 800 MHz 2 \(\times\) VDD output buffer with PVTL (Process, Voltage, Temperature, Leakage) detection techniques to reduce slew rate (SR) variation. The threshold voltage (Vth) of MOS transistors varying with PVT is detected such that Output buffer will turn on different current paths correspondingly to decrease or increase the compensation current. Moreover, the slew rate is adjusted by Delay buffer and the leakage current sensor which compensates the dynamic and static currents, respectively. Most important of all, a deterministic sizing optimization method for the output transistors is reported and analyzed. The proposed design realized using a typical 90 nm CMOS process shows that the maximum data rate is 450/800 MHz given supply voltage 1.0/1.8 V with PCB and SMA connectors . The SR variation is reduced over 43% after the compensation of the leakage detection. The core area of the prototype is 0.056 \(\times\) 0.439 mm \(^2\) , and the power consumption is 68.9/98.5 ( \(\upmu\) W/MHz) at 450/800 MHz, respectively.
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1285-3
      Issue No: Vol. 97, No. 2 (2018)
  • G m -boosted current-reuse inductive-peaking common source LNA for
           3.1–10.6 GHz UWB wireless applications in 32 nm CMOS
    • Authors: Vikram Singh; Sandeep Kumar Arya; Manoj Kumar
      Pages: 351 - 363
      Abstract: A low power, low noise amplifier (LNA) for 3.1–10.6 GHz ultra-wideband (UWB) wireless applications is reported in this paper. The proposed LNA is designed using common source (CS) current-reused architecture. Flat and high power gain (S21) with constant noise figure (NF) is achieved using series inductive peaking between CS primary stage and the current reused second stage. Input–output matching networks have been used to achieve acceptable values of input reflection coefficient (S11) and output reflection coefficient (S22) for the complete UWB frequency range. The use of inductive peaking with current reused architecture enhances the overall performance of proposed ultra-wideband LNA. The LNA is analyzed and designed using 32 nm CMOS process. It has a constant NF of 2.7 dB, a high and flat S21 of 23.8 ± 0.7 dB with high reverse isolation (S12) of < − 37.3 dB. The proposed LNA provides acceptable results for S11 and S22 parameters with values less than − 7.5 and − 11.0 dB respectively, for the UWB frequency range of 3.1–10.6 GHz. The proposed LNA provides 1-dB compression point (P1dB) of − 20 dBm and third order intercept point (IIP3) of − 10 dBm. The power consumed by the reported LNA is only 8.05 mW for a 0.7 V power supply.
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1290-6
      Issue No: Vol. 97, No. 2 (2018)
  • A novel low power flip-flop design using footless scheme
    • Authors: Jin-Fa Lin; Ming-Yan Tsai; Ching-Sheng Chang; Yu-Ming Tsai
      Pages: 365 - 370
      Abstract: A low power true-single-phase clocking flip-flop (FF) design by using FootLess scheme named FLFF design targeting low VDD and low power operations is proposed. It is adapted from a recently presented FF design and achieves circuit simplification by using hybrid logic style. The optimization measure leads to a new design featuring better both power and speed performances. Based on the simulation results, the proposed design outperforms the conventional transmission gate flip-flop (TGFF) by 84% in energy. An 8-bit Johnson-counter consisting of the proposed FF design is developed and implemented. For the target 250 MHz working frequency, the proposed design achieves over 48.3% power saving with 14.6% area reducing.
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1327-x
      Issue No: Vol. 97, No. 2 (2018)
  • Low power analog comb filter for biomedical applications
    • Authors: Sajal K. Paul; Chandan Kumar Choubey; Gaurav Tiwari
      Pages: 371 - 386
      Abstract: An analog topology is proposed to implement a comb filter for removal of power-line interference from various low-amplitude biomedical signals. In this proposed methodology, an n-number of all-pass filters (APFs) and an adder circuit are used to suppress n-number of frequencies. All the APFs as well as the adder circuit are designed using a current conveyor to utilize the various properties of the current-mode circuits. The active and passive components used to design the comb filter include second-generation current conveyor (CCII±), resistor, and capacitor. The circuit is designed for n = 4 to remove the power-line frequency of 50 Hz, and its three odd harmonics such as 150 Hz, 250 Hz, and 350 Hz. A PSPICE simulation is done to verify the performance of the proposed circuit. In simulation, all CCII± are designed using macro model of commercially-available current feedback operational amplifier integrated circuit (IC) AD844 as well as dynamic threshold voltage metal oxide semiconductor technology. The proposed circuit is also implemented also using commercially available IC AD844 on breadboard for n = 3. The output result on digital storage oscilloscope confirm the effectiveness of the proposed comb filter circuit in removing the power line interference i.e. the power-line frequency and its odd harmonics.
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1329-8
      Issue No: Vol. 97, No. 2 (2018)
  • A blind digital background calibration for all-digital VCO-based ADC
    • Authors: Yuke Zhang; Kamal El-Sankary; Jianjun Zhou
      Pages: 387 - 394
      Abstract: A new blind digital background calibration for nonlinearity compensation of voltage-controlled oscillator based analog-to-digital converter is proposed in this letter. The proposed technique is blind and does not require the injection of an additional calibration signal. It takes advantage of the fact that the in-band and the out-of-band distortions have the same origin. By cancelling the out-of-band distortions, in-band distortions can also be removed. This new technique draws support from the orthogonal polynomials least mean square (LMS) algorithm to improve the computational efficiency. Finally, the proposed technique improves the signal-to-noise ratio by more than 40 dB after convergence of the LMS algorithm.
      PubDate: 2018-11-01
      DOI: 10.1007/s10470-018-1340-0
      Issue No: Vol. 97, No. 2 (2018)
  • A FHD 1080, 120 fps CMOS image sensor with two step SS-ADC
    • Authors: Masood Teymouri; Jafar Sobhi
      Abstract: This paper presents a full high definition 1920 × 1080 pixel, 120 frames/s CMOS image sensor with two-step single-slope (TS-SS) ADC. The column-parallel TS-SS ADC and binary subtractor are used to convert photodiode voltage to the final 10-bit digital data. Therefore, there is no need for the pixel readout, noise suppression or comparator offset cancellation circuits to be used in the columns. A new ramp signal generator is proposed to generate 32 concurrent and identical ramp signals. TS-SS ADC improves the conversion speed while reducing the power consumption level as well. The proposed image sensor has been designed using TSMC 0.18 μm 1-poly 4-metal standard process. The simulation results show that the total comparator referred noise to the FD node in 1 Hz–100 MHz range is 0.574 mV and, also the total power consumption is about 100 mW.
      PubDate: 2018-10-17
      DOI: 10.1007/s10470-018-1349-4
  • A 24–28 GHz high-stability CMOS power amplifier using
           common-gate-shorting (CGS) technique with 17.5 dBm $${\hbox {P}}_{sat}$$
           P sat and 16.3% PAE for 5G millimeter-wave applications
    • Authors: Chunshen Jiang; Runxi Zhang; Chunqi Shi
      Abstract: This paper presents a 24–28 GHz high-stability millimeter-wave power amplifier (PA) implemented in low-cost \(0.13\, \upmu \hbox {m}\) CMOS process. The PA consists of two cascode stages with passive transformer-based input and output baluns. The common-gate-shorting technique is proposed for high-stability and high-gain millimeter-wave cascode stage. To realize this technique, an interdigited powercell structure is adopted for MOS layout optimization. In order to improve \(\hbox {P}_{out}\) and PAE, an inter-stage inductor is introduced. The proposed PA achieves a PAE over 16.3% with a saturated output power of 17.5 dBm. The maximum gain is 21.2 dB at 26 GHz.
      PubDate: 2018-10-15
      DOI: 10.1007/s10470-018-1350-y
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
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