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Filtering by: Creator Knowlton, C. W. Remove constraint Creator: Knowlton, C. W. Committee Member Nguyen, Thinh Remove constraint Committee Member: Nguyen, Thinh

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  • Power Efficient Architectures for Medium-high Resolution Analog-to-Digital Converters

    Creator:
    Sadollahi, Mahmoud
    Abstract:
    Analog-to-digital converters are essential components to the portable devices that we are using today. Wireless sensors, body implanted devices, communication devices and so forth require low power ADCs. Therefore achieving higher resolution and bandwidth with lower power consumption is targeted in ADCs design. In this work power efficient ADCs for...
    Resource Type:
    Dissertation
    Full Text:
    error/offset canceling capacitor network Cc. 0 500 1000 1500 2000 0 500 1000 1500 2000 S w it c

  • Low-power successive approximation analog to digital converter with digital calibration

    Creator:
    Li, Wei
    Abstract:
    IC designers are continuously facing the challenges from reduced CMOS feature sizes and supply voltages. ADCs that deliver satisfactory resolutions/speeds while utilizing the state-of-the-art technologies to save power are in high demand. The analog circuits are more and more assisted by various digital calibration techniques to get boosted performances. This...
    Resource Type:
    Dissertation
    Full Text:
    ," ISSCC 2010, pp. 384-385, Feb. 2010. 4 [1-6] Y. Zhu, C. H. Chan, U. F. Chio, S. W. Sin, S

  • Design techniques for low power high speed successive approximation analog-to-digital converters

    Creator:
    Lin, Jiaming
    Abstract:
    This dissertation presents two high-speed pipeline successive approximation analog-to-digital converters (SAR ADCs). Capacitive DACs and resistive DACs are utilized in these two pipeline SAR ADCs, respectively. The pipeline SAR ADC with capacitive DACs can save 50% switching power compared with other time-interleaved SAR ADCs since the total capacitance of the...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ Gabor C. Temes This dissertation presents two high-speed pipeline successive

  • Linearity enhancement techniques for data converters

    Creator:
    Cao, Jinzhou
    Abstract:
    Data converters are essential interface circuits between the analog world that people live in and the digital processors that people live with. Linearity, which often is a tradeoff against other performance criteria, is one of the major performance demands from applications for both analog-to-digital converts (ADC) and digital-to-analog converters (DAC)....
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ Gabor C. Temes Data converters are essential interface circuits between the analog

  • Dynamic Error Calibration for Continuous-Time Delta-Sigma Modulator with Multi-GHz Sampling Rate

    Creator:
    He, Tao
    Abstract:
    Continuous-time ΔΣ modulators are widely used in cellular handsets due to their power efficiency and inherent anti-aliasing characteristics. To achieve demanding cellular bandwidth requirements while maintaining good power efficiency, multi-bit feedback is typically used. This approach provides benefits such as lower OSR, relaxed loop filter requirements, and reduced jitter sensitivity....
    Resource Type:
    Dissertation
    Full Text:
    Rate Abstract approved: ______________________________________________________ Gabor C

  • Instruction fetching, scheduling, and forwarding in a dynamic multithreaded processor

    Creator:
    Browning, Adam W.
    Abstract:
    Dynamic multithreaded processors attempt to increase the performance of a single sequential program by dynamically extracting threads from sources such as loop iterations. The scheduling of instructions in such a processor plays a vital role in the amount of thread level parallelism that can be extracted and thus the overall...
    Resource Type:
    Masters Thesis
    Full Text:
    Multithreaded Processor AN ABSTRACT OF THE THESIS OF Adam W. Browning for the degree of Master of Science

  • Design techniques for wideband low-power Delta-Sigma analog-to-digital converters

    Creator:
    Wang, Yan
    Abstract:
    Delta-Sigma (ΔΣ) analog-to-digital converters (ADCs) are traditionally used in high quality audio systems, instrumentation and measurement (I&M) and biomedical devices. With the continued downscaling of CMOS technology, they are becoming popular in wideband applications such as wireless and wired communication systems,high-definition television and radar systems. There are two general realizations...
    Resource Type:
    Dissertation
    Full Text:
    : _____________________________________________________________________ Gábor C. Temes Pavan Kumar Hanumolu Delta-Sigma (ΔΣ) analog-to-digital converters (ADCs

  • Representations of fractional Brownian motion

    Creator:
    Wichitsongkram, Noppadon
    Abstract:
    Integral representations provide a useful framework of study and simulation of fractional Browian motion, which has been used in modeling of many natural situations. In this thesis we extend an integral representation of fractional Brownian motion that is supported on a bounded interval of ℝ to integral representation that is...
    Resource Type:
    Dissertation
    Full Text:
    turn can be used to give new series representations of fractional Brownian motion. c©Copyright by

  • Micropower incremental analog-to-digital converters

    Creator:
    Chen, Chia-Hung
    Abstract:
    Incremental ADCs (IADCs) have many advantages for low-frequency high-accuracy data conversion—they are easy to multiplex between channels, need simpler digital decimation filter, and allow extended counting with a Nyquist-rate ADC. A single-loop incremental ADC was designed and fabricated in 90 nm for a biosensor interface circuit. It incorporates one integrator,...
    Resource Type:
    Dissertation
    Full Text:
    Incremental Analog-to-Digital Converters. Abstract approved: Gabor C. Temes Incremental ADCs (IADCs

  • Applications of Holographic Optical Tweezers: Multiplexed Fluorescence Spectroscopy and the Micromechanics of Type-I Collagen

    Creator:
    Cibula, Matthew A.
    Abstract:
    The development and some applications of holographic optical tweezers (HOT) are presented. Our HOT system uses a spatial light modulator (SLM) to control the location and properties of the optical trap. We have developed a method for optimizing the diffraction efficiency of a SLM that can be applied in situ...
    Resource Type:
    Dissertation
    Full Text:
    samples prepared at 21◦C and 37◦C show that gels formed at lower tem­ perature are more inhomogeneous