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Filtering by: Advisor Wrathall, David J. Remove constraint Advisor: Wrathall, David J. Decade 1990-1999 Remove constraint Decade: 1990-1999 Rights Statement Copyright Not Evaluated Remove constraint Rights Statement: Copyright Not Evaluated

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  • Digitally-programmable switched-current filters

    Creator:
    Yesilyurt, Ayse Gul
    Abstract:
    Digitally-programmable filters have been an ongoing research topic for a number of years. The first such filters were FIR transversal filters using Charge-Coupled Devices (CCD's) and IIR recursive filters using switched-capacitor (SC) techniques. Although both techniques achieve excellent results, they require non-standard and/or additional IC fabrication steps. Low substrate doping...
    Resource Type:
    Masters Thesis
    Full Text:
    March 2. 1990 Acknowledgements I am indebted to Dr. David J. Allstot who helped initiate this

  • Switched-current logic for digital circuit design

    Creator:
    Subramanian, Vivek
    Resource Type:
    Masters Thesis
    Full Text:
    approved: Redacted for privacy David J. Allstot A current-mode concept for digital integrated circuit

  • A universal CMOS current-mode operational amplifier

    Creator:
    Botelho, Cindy
    Abstract:
    It has become customary in electrical engineering to think of signal processing in terms of voltage variables to the exclusion of current variables. This tendency has resulted in voltage signal processing circuits such as voltage-controlled voltage sources (VCVS) and voltage-mode operational amplifiers. However, the VCVS operational amplifier has several limitations...
    Resource Type:
    Masters Thesis
    Full Text:
    _ , Abstract approved: Redacted for Privacy I David J. Allstot It has become customary in electrical

  • Hypervelocity spectroscopy from impacts in polymeric materials

    Creator:
    Buettner, Douglas J.
    Abstract:
    Stacked sheets of polyethylene terephthalate andpolystyrene provide a means for recovering projectiles travelling at hypervelocities. The transparency of these multiple diaphragms is utilized so that light generated from hypervelocity impacts can be studied. A method for gathering visible as well as ultraviolet light from less transparent polymer foams has been...
    Resource Type:
    Masters Thesis
    Full Text:
    Institute of Technology, (Pasadena: 1991), 1-2. 2. David J. Griffiths. Comet Coma Sample Return

  • Current mode analog and digital circuit design

    Creator:
    Liang, Guojin
    Abstract:
    In this dissertation, two important current mode circuit design subjects have been explored. In the first part, the switched-current circuit technique has been investigated. The fundamental performance and limitations of this technique are explored. One of the major limitations, the signal distortion caused by clock feedthrough has been substantially reduced...
    Resource Type:
    Dissertation
    Full Text:
    for privacy Abstract approved: _ David J. Allsiot In this dissertation, two important current mode

  • Current-feedthrough cancellation techniques in switched-current circuits

    Creator:
    Lao, Paul A.
    Resource Type:
    Masters Thesis
    Full Text:
    Technique In Switched-Current Circuits Abstract approved: Redacted for Privacy 7 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:
    Cancellation Technique for Current-Mode T/H Circuits Abstract approved: Redacted for Privacy David J. Alfstot

  • 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:
    Abstract approved: Dr. Davi J. Allstot The design and implementation of Switched-Current (SI) ladder

  • 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:
    approved: Redacted for Privacy David J. Allstot Clock-feedthrough effects, channel-length modulation and

  • 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:
    sum over j accounts for all the residual shallow donors. In addition boron and nitrogen incorporated