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Filtering by: Creator Bogan, M. T. Remove constraint Creator: Bogan, M. T. Advisor Moon, Un Ku Remove constraint Advisor: Moon, Un Ku

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  • Digital implementation of a mismatch-shaping successive-approximation ADC

    Creator:
    Coe, Matthew T.
    Abstract:
    Utilizing a two-capacitor topology, the digital implementation of an audio-band successive-approximation analog-to-digital converter (ADC) is explored in the context of mismatch-shaping where the mismatch estimates are accurate to the first order. A second-order Δ∑ loop was found to be effective in system simulations given a 0.1% capacitor mismatch. Spectral analysis...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Matthew T. Coe for the degree of

  • Low power high resolution data converter in digital CMOS technology

    Creator:
    Zheng, Zhiliang
    Abstract:
    The advance of digital IC technology has been very fast, as shown by rapid development of DSP, digital communication and digital VLSI. Within electronic signal processing, analog-to-digital conversion is a key function, which converts the analog signal into digital form for further processing. Recently, low-voltage and low-power have become also...
    Resource Type:
    Masters Thesis
    Full Text:
    research. Also thanks to Prof. Gordon M. Reistad, Prof. Timothy C. Kennedy, Prof. William Warnes, DyAnn

  • Generalized radix design techniques for low-power, low voltage pipelined and cyclic analog-digital converters

    Creator:
    Sharma, Vivek
    Abstract:
    This thesis proposes a novel technique for the design of pipelined and cyclic ADCs utilizing generalized radix gain stages. Several models have been proposed for the optimization of high performance pipelined ADCs by various researchers. This work builds upon them, using a simple but accurate model to estimate the optimal...
    Resource Type:
    Masters Thesis
    Full Text:
    never have materialised. I also want to thank Prof. Huaping Liu, Roger Traylor and Prof. William M

  • 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:
    . The measured results of the prototype ADC implemented in a 0.13μm CMOS demonstrate peak SNDR of

  • Energy and area efficient techniques for data converters

    Creator:
    Venkatram, Hariprasath
    Abstract:
    Data converters are ubiquitous building blocks of a signal chain. The rapid increase in communication and connectivity devices presents new avenues for pushing the state of the art analog to digital converters. Techniques for improving resolution, bandwidth, linearity and bit-error rate, while reducing the power, energy and area is the...
    Resource Type:
    Dissertation
    Full Text:
    Voltage, V N or m al iz ed O ut pu t F re qu en cy LMS Calibrated Output Function of VCO Figure

  • Area efficient D/A converters for accurate DC operation

    Creator:
    Greenley, Brandon Royce
    Abstract:
    The design of mixed-signal integrated circuits has evolved from simple analog and digital circuits operating on the same silicon substrate to the point that now we have complete system on a chip solutions for communication systems. The levels of integration needed to remain cost effective in today's integrated circuit (IC)...
    Resource Type:
    Masters Thesis
    Full Text:
    (110 m x 94 pm), and only consumes 2.8 mW of power. In addition to the 10-bit DAC, a design is

  • 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:
    Φ1 Φ2 ΦLAT x(t) y(n) (c) Figure 2.9: Allocation of half-delay in first-order ∆ΣM: (a) Full-delay

  • High-speed switched-capacitor filters based on unity-gain buffers

    Creator:
    Bruneau, David
    Abstract:
    In this work a new voltage buffer, the drain-follower, achieves 300MHz band-width with 2pF load, a dc gain of 0.993V/V, 1mV offset voltage, -60 dB total harmonic distortion at 1.4Vpp output voltage and 6.5mW power dissipation from 5V supply. A unity-gain buffer switched-capacitor biquad filter has been implemented in 0.5μm...
    Resource Type:
    Masters Thesis
    Full Text:
    Weisshaar, Dr. John T. Stonick (Evil JTS), Dr. Karti Mayaram, and Dr. Richard Schreier for consultation

  • Design of high efficiency step-down switched capacitor DC/DC converter

    Creator:
    Ma, Mengzhe
    Abstract:
    Recently, switched capacitor DC/DC converters are extensively used in portable electronic devices because they feature many advantages, such as high efficiency, small package, low quiescent current, minimal external components and low cost. In this thesis, two step-down switched capacitor DC/DC converters are designed. One has the fixed output options 1.5V,...
    Resource Type:
    Masters Thesis
    Full Text:
    overage vo rippe 30m 2 Orn 10 m / T B: e 900 800 700 600 2. 4,5 Figure 4.10. Simulation results

  • A 10 bit algorithmic A/D converter for a biosensor

    Creator:
    Rengachari, Thirumalai
    Abstract:
    This thesis presents a novel algorithmic A/D converter to be used in a biosensor. The converter is capable of a conversion rate of 1.5 bits/phase and hence the required conversion time is reduced. The proposed architecture is analyzed for non-ideal effects and compared with existing algorithmic A/D architectures. The converter...
    Resource Type:
    Masters Thesis
    Full Text:
    . Figure 2.1 Chromatophores in hospitable environment 5 T . rt Figure 2.2 Chromatophores in hostile