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Filtering by: Creator Wells, A. Remove constraint Creator: Wells, A. Advisor Allstot, David J. Remove constraint Advisor: Allstot, David J. Rights Statement Copyright Not Evaluated Remove constraint Rights Statement: Copyright Not Evaluated

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  • A P-well GaAs MESFET technology

    Creator:
    Canfield, Philip C.
    Abstract:
    The semiconductor gallium arsenide (GaAs) has many potential advantages over the more widely used semiconductor silicon (Si). These include higher low field mobility, semi-insulating substrates, a direct band-gap, and greater radiation hardness. All these advantages offer distinct opportunities for implementation of new circuit functions or extension of the operating conditions...
    Resource Type:
    Dissertation
    Full Text:
    A P-well GaAs MESFET technology AN ABSTRACT OF THE

  • A photodetecting device that rejects ambient light

    Creator:
    Li, Ning
    Abstract:
    The integration of photodetectors with IC circuits provides a significant improvement over conventional designs. Featuring noise reduction, extended frequency responses, lower power consumption, and data operations, these integrated devices open challenging opportunities for many applications. One type of photodetector has the potential for important applications in the life science and...
    Resource Type:
    Masters Thesis
    Full Text:
    application to a plant physiology study, and the results were also significant. Based on a 1.2 um n-well

  • 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:
    appendix D. It was designed using a 3 um n-well CMOS technology and operates from a 10-V supply (which

  • 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:
    acknowledge a number of people who had a significant influence on this thesis, as well as me personally

  • 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:
    transistor sizes and still performs relatively well compared with the existing techniques. A SI lowpass

  • High accuracy CMOS switched-current ladder filters

    Creator:
    Hoei, Jung-sheng
    Abstract:
    Clock-feedthrough effects, channel-length modulation and device mismatch are the main causes of the inaccuracy of Switched-Current (SI) circuits. In this paper, these non-ideal effects are analyzed. A high-performance current mirror, namely regulated cascode current mirror, which eliminates drain voltage variation problem is introduced. By using this current mirror as a...
    Resource Type:
    Masters Thesis
    Full Text:
    ladder filter is built using the proposed cancellation circuit and implemented in a two-micron P-well

  • Design of CMOS switched-current filters

    Creator:
    Fiez, Theresa S.
    Abstract:
    The design and implementation of Switched-Current (SI) ladder filters is described. SI filters require only a standard digital CMOS process and the power supply voltage requirement is low. SI circuits also can be potentially operated at higher frequencies than Switched-Capacitor (SC) filters due to the low-impedance wideband nodes of the...
    Resource Type:
    Dissertation
    Full Text:
    leverages the well-established design methodologies of SC filters. A standard digital 2-micron n-well CMOS

  • Design considerations for fast-settling operational amplifiers

    Creator:
    Yang, Howard C.
    Abstract:
    The design considerations for fast-settling operational amplifiers (opamps) differ significantly between sampled-data switchedcapacitor (SC) and conventional continuous-time applications. In SC circuits, the shape of the output voltage waveform of an opamp is of no consequence provided that the output settles to within a specified tolerance of its steady-state value prior...
    Resource Type:
    Dissertation
    Full Text:
    applies to any opamp that is well-approximated by a two-pole model, including the conventional two-stage

  • Design of high-speed low-power analog CMOS decision feedback equalizers

    Creator:
    Su, Wenjun
    Abstract:
    Decision feedback equalizer (DFE) is an effective method to remove inter-symbol interference (ISI) from a disk-drive read channel. Analog IC implementations of DFE potentially offers higher speed, smaller die area, and lower power consumption when compared to their digital counterparts. Most of the available DFE equalizers were realized by using...
    Resource Type:
    Masters Thesis
    Full Text:
    analog equalizer are carried out in a 1.2 pm n-well CMOS process. HSPICE simulations show that an analog

  • Design of high-speed adaptive parallel multi-level decision feedback equalizer

    Creator:
    Xiang, Yihai
    Abstract:
    Multi-level decision feedback equalization (MDFE) is an effective technique to remove inter-symbol interference (ISI) from disk readback signals, which uses the simple architecture of decision feedback equalization. Parallelism which doubles the symbol rate can be realized by setting the first tap of the feedback filter to zero. A mixed-signal implementation...
    Resource Type:
    Masters Thesis
    Full Text:
    zero. A mixed-signal implementation has been chosen for the parallel MDFE, in which coefficients