Search Constraints

Start Over
Filtering by: Alternative title ssim Circular no. 34 Remove constraint Alternative title ssim: Circular no. 34 Advisor Moon, Un Ku Remove constraint Advisor: Moon, Un Ku License All rights reserved Remove constraint License: All rights reserved

Search Results

  • Automated synthesis of analog to digital conversion

    Creator:
    Weaver, Skyler
    Abstract:
    This thesis describes circuit architectures and techniques that facilitate the automatic synthesis and fabrication of analog-to-digital converters (ADCs). Since automated synthesis already exists for digital circuits and is part of the digital circuit design flow, this work demonstrates the feasibility of ADC synthesis with little or no modification to presently...
    Resource Type:
    Dissertation
    Full Text:
    feasibility of ADC synthesis with little or no modification to presently existing software tools. In the end

  • Limitations and optimization of a blind calibration algorithm for nonlinearity in analog to digital converters

    Creator:
    Coker, Brandilyn
    Abstract:
    Analog to digital converters (ADCs) are a critical part of communication between the physical world and the increasingly digital systems humans use every day. ADCs have inherent non-idealities that degrade performance. Nonlinearity is one of the most prevalent non-idealities that designers face. While calibration methods for nonlinearity exist in the...
    Resource Type:
    Masters Thesis
    Full Text:
    multiple harmonics simultaneously with no need for an external test signal. This work explores the blind

  • High-performance Ring Amplifier based Analog-to-Digital Converters

    Creator:
    Hu, Hang
    Abstract:
    Ring Amplifier serves as a great candidate both for precision amplification and fast integration in the discrete time system. It can be utilized in high-performance analog-to-digital converters (ADCs). In high-speed ADC utilizing pipelined architectures with residue amplification, Successive-Approximation Register (SAR) ADCs as the sub-ADC and power efficient Ring Amplifier based...
    Resource Type:
    Dissertation
    Full Text:
    leakage introduced by the analog and digital filter mismatch is analyzed and indicates no calibration

  • A multi-bit hybrid DSM over full-scale range without feedback DEM

    Creator:
    Kwon, Sunwoo, 1974-
    Abstract:
    Evolution of the mobile communication standards and proliferation of hand-held devices mandate stringent Analog-to-Digital Converter (ADC) specifications. Among various ADCs, a ∆Σ ADC is best known as a power-efficient ADC when more than 12b is required. However, a conventional discrete-time (DT) ∆Σ Modulator (∆ΣM) is inadequate for low-power wideband applications...
    Resource Type:
    Dissertation
    Full Text:
    modulator unstable. In this thesis, a multi-bit 3rd-order hybrid ∆ΣM with over full-scale range and no DEM

  • Design techniques for clocking high performance signaling systems

    Creator:
    Hanumolu, Pavan Kumar
    Abstract:
    Scaling of CMOS technology has progressed relentlessly for the past several decades. In order for this unprecedented scaling to benefit the performance of large digital systems, the communication bandwidth between integrated circuits (ICs) must scale accordingly. However, interconnect technology does not scale as aggressively, making communication between chips the major...
    Resource Type:
    Dissertation
    Full Text:
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.3 Circuit Design

  • Design techniques for low-voltage analog-to-digital converter

    Creator:
    Chang, Dong-Young
    Abstract:
    Continuous process scale-down and emerging markets for low-power/low-voltage mobile systems call for low-voltage analog integrated circuits. Switched-capacitor circuits are the building blocks for analog signal processing and will encounter severe overdrive problems when operating at low-voltage conditions. There are several well-known techniques to bypass the problem. These approaches include: (1)...
    Resource Type:
    Dissertation
    Full Text:
    ............................................................................... 31 5.1 Block diagram of a 10-bit l,Sbitlstage pipelined ADC ................................. 34

  • Dynamic biasing for ring amplification

    Creator:
    Farahbakhshian, Farshad
    Abstract:
    New amplifier architectures are presented using non-traditional methods of biasing. Time-based dynamic biasing and signal-based dynamic biasing are discussed in the context of new architectures. This includes a new form of ring amplification with a dynamic deadzone, allowing for a structure whose coarse path does not consume static power.
    Resource Type:
    Masters Thesis
    Full Text:
    . . . . . . . . . . . . . . 32 3.7 FFT Output Spectrum of Proposed Architecture . . . . . . . . . . . 34 3.8 FFT Output

  • Correlated level shifting as a power-saving method to reduce the effects of finite DC gain and signal swing in opamps

    Creator:
    Gregoire, B. Robert
    Abstract:
    This thesis presents methods to reduce the effects of finite opamp DC gain, output voltage swing limitations in opamps, and component mismatches. The primary contribution of this thesis is a new switched-capacitor method named correlated level shifting (CLS). CLS enables true rail-to-rail operation by storing an estimate of the desired...
    Resource Type:
    Dissertation
    Full Text:
    times they helped me reduce an idea to a circuit; it is no wonder they are recruited so heavily by the

  • Low voltage techniques for pipelined analog-to-digital converters

    Creator:
    Carnes, Joshua Kenneth
    Abstract:
    To realize pipelined ADCs in deep-submicron processes, low voltage techniques must be developed to work around problems created by limited supply voltages such as the floating switch dead zone, reduced SNR, and reduced OpAmp performance. This thesis analyzes standard and low voltage design issues for pipelined ADCs and proposes a...
    Resource Type:
    Masters Thesis
    Full Text:
    Clock Boosting & Bootstrapping…………………………. 32 4.2.2 Switched OpAmp (SO) Technique………………………... 34

  • Power efficient analog-to-digital converters using both voltage and time domain information

    Creator:
    Oh, Taehwan
    Abstract:
    As advanced wired and wireless communication systems attempt to achieve higher performance, the demand for high resolution and wide signal bandwidth in their associated ADCs is strongly increased. Recently, time-domain quantization has drawn attention from its scalability in deep submicron CMOS processes. Furthermore, there are several interesting aspects of time-domain...
    Resource Type:
    Dissertation
    Full Text:
    ) .................................................................................................................... 34 Figure 3.15: Continuous-time zero-crossing comparator