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Filtering by: Creator Enfield, David B. Remove constraint Creator: Enfield, David B. Advisor Allstot, David J. Remove constraint Advisor: Allstot, David J.

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  • High speed analog circuit design using the heterostructure insulated gate field effect transistor

    Creator:
    Smith, Alexander B.
    Abstract:
    As Si MOS approaches its maximum limits in speed and bandwidth, new devices are desired to meet the needs of high speed communications and signal processing. A device that exhibits superior performance to Si MOS, BJT, and GaAs technology is the HEMT (high electron mobility transistor). The HEMT offers superior...
    Resource Type:
    Masters Thesis
    Full Text:
    insulated gate field effect transistor AN ABSTRACT OF THE THESIS OF Alexander B. Smith for the degree of

  • Design and computer-aided optimization of RF CMOS power amplifiers

    Creator:
    Gupta, Ravi
    Abstract:
    In recent years, there has been an extensive effort to develop low-cost implementations of radio frequency integrated circuits for consumer applications. This thesis is a research effort in the design and implementation of integrated RF CMOS Power Amplifiers (PAs). A significant challenge in the implementation of RF CMOS ICs is...
    Resource Type:
    Dissertation
    Full Text:
    of RF CMOS Power Amplifiers. Abstract approved: David J. Alistot In recent years, there has

  • Switch-capacitor Power Amplifier with Enhanced Power Back-off Efficiency and Linearity

    Creator:
    Qiao, Bo
    Abstract:
    Nowadays, wireless communication systems use high-order quadrature amplitude modulation (QAM) together with orthogonal frequency-division multiplexing (OFDM) to increase the link capacity and robustness. These signals always have large peak-to-average power ratio (PAPR) and require power amplifiers (PAs) achieve both high efficiency and linearity simultaneously. For the efficiency, the complementary metal...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: ______________________________________________________ David J. Allstot

  • Current-feedthrough cancellation technique for current-mode T/H circuits

    Creator:
    Young, David Y. W.
    Abstract:
    In this paper, an analysis of the clock-feedthrough effects in switched-current (SI)' circuits will be presented. The clock-feedthrough effects caused by the non-ideal characteristic of MOS switches when they are turned off limit the accuracy of the analog track-and-hold (T/H) circuits. A model to analyze and characterize this effect is...
    Resource Type:
    Masters Thesis
    Full Text:
    -mode T/H circuits AN ABSTRACT OF THE THESIS OF David Y.W. Young for the degree of Master of Science

  • CMOS analog design using a digital gate array

    Creator:
    Liu, Tian-chen
    Abstract:
    The core area of a conventional CMOS digital gate array consists of only one size of NMOS device and one size of PMOS device. Both primitives have fixed minimum channel lengths, and this has significantly impeded analog applications. This work has shown that by forming series and parallel interconnections between...
    Resource Type:
    Masters Thesis
    Full Text:
    primitives in parallel and two in series. This is approximately equivalent to (b) a single PMOS with 3X width

  • Analytical model of GaAs MESFET output conductance with frequency and temperature dependent parameters

    Creator:
    Lam, Steven C. F.
    Abstract:
    The output characteristics of a conventional GaAs depletion-mode MESFET device have been investigated. One of the important parameters of the small-signal GaAs MESFET model, g[subscript ds] (output conductance), is shown to be frequency and temperature dependent. Variations in g[subscript ds] are a serious problem in many analog and digital circuits...
    Resource Type:
    Masters Thesis
    Full Text:
    professor, Dr. David J. Allstot, for his guidance, advice, and encouragement. He has also been a fine

  • Energy-efficient OTA architectures using load-pole cancellation

    Creator:
    Ramakrishna, Pavan Kumar
    Abstract:
    The CMOS two-stage Operational Transconductance Amplifier (OTA) has been a key enabler for mixed-signal IC design for nearly four decades . This research focuses on a modified two-stage CMOS OTA that features load-pole cancellation (LPC); i.e., the resulting architecture is essentially a two-stage CMOS OTA with no load capacitance. The...
    Resource Type:
    Masters Thesis
    Full Text:
    . Title: Energy-efficient OTA Architectures using Load-pole Cancellation Abstract approved: David J

  • Design of high-performance operational amplifiers using an embedded compensation technique

    Creator:
    Ziazadeh, Ramsin M.
    Resource Type:
    Masters Thesis
    Full Text:
    approved: David J. Allstot A novel frequency compensation method facilitates the design of multi-stage

  • Design and computer aided optimization of a fully integrated CMOS RF distributed amplifier

    Creator:
    Ballweber, Brian M.
    Abstract:
    Advancements in the sophistication and complexity of modern electronic systems are creating a need for highly integrated systems with ever higher operational frequencies. The economical demands of these systems dictate that they be implemented using low cost fabrication technologies, such as digital CMOS. One of the major challenges facing circuit...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: David J. Alistot Advancements in the sophistication and complexity of modern electronic sys­

  • A high-swing class-AB CMOS operational amplifier

    Creator:
    Yu, Choung
    Abstract:
    A high-swing, high-linearity Class-AB CMOS operational amplifier suitable for high speed application is presented. It does not exhibit large-signal slewing effects as do others; its output current is limited by MOSFET aspect ratios and the total power supply voltage. A rail-to-rail common-mode input range is achieved by a topology which...
    Resource Type:
    Masters Thesis
    Full Text:
    CONTENTS I. INTRODUCTION II. CIRCUIT DESCRIPTION 3 A. A Basic class-AB differential amplifier 3 B