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Filtering by: Creator Weissman, D. E. Remove constraint Creator: Weissman, D. E. Advisor Moon, Un Ku Remove constraint Advisor: Moon, Un Ku Rights Statement In Copyright Remove constraint Rights Statement: In Copyright

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  • 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:
    . Title: A 10 Bit Algorithmic A/D Converter for a Bio-sensor Abstract approved: Gabor C. Temes and Un-Ku

  • Fast opamp-free delta sigma modulator

    Creator:
    Thomas, Daniel E.
    Abstract:
    Switched-capacitor (SC) circuits are commonly used for analog signal processing because they can be used to realize precision filters and data converters on an integrated circuit (IC). However, for high speed applications SC circuit operating speeds are limited by the internally-compensated opamps found in SC integrators, a common building block...
    Resource Type:
    Masters Thesis
    Full Text:
    t o r p r e s e n t e d i n [ 4 ] . 36 Note that the buffers shown in schematic were

  • High-performance delta-sigma analog-to-digital converters

    Creator:
    da Silva, Jose Barreiro
    Abstract:
    Multi-stage delta-sigma (ΔΣ) architectures, commonly known as MASH, are the preferred choice for analog-to-digital converters (ADCs) used in broadband communication applications, where high-resolution (above 14 bits) and high-bandwidth (several MHz) performances are required. Current state-of-the-art designs are capable of as much as 5-MS/s output data rates with 90-dB SNR. However,...
    Resource Type:
    Dissertation
    Full Text:
    thesis describes the problems of extending bandwidth without losing accu- racy in z A/D converters, and

  • 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:
    design of low-power high- performance A/D converters in CMOS technology, and the non-ideal switched

  • Error canceling low voltage SAR-ADC

    Creator:
    Wen, Jianping
    Abstract:
    The design of a switched capacitor successive approximation A/D converter is discussed in this thesis. This design adopts a novel capacitance mismatch error cancellation algorithm proposed in references [25, 27]. Detailed charge domain analysis is given in this thesis, which results in an improvement of the proposed algorithm by tracing...
    Resource Type:
    Masters Thesis
    Full Text:
    , Gabor C. Temes The design of a switched capacitor successive approximation A/D converter is discussed

  • 20-stage pipelined ADC with radix-based calibration

    Creator:
    Yun, Chong Kyu
    Abstract:
    A radix-based calibration technique was previously proposed with a two-stage algorithmic analog-to-digital converter (ADC). The objective of this work is to verify the capability of radix-based calibration for a true multi-stage ADC. In order to prove the idea, a single bit-per-stage, 20-stage pipelined ADC is designed in a 0.35-μm CMOS...
    Resource Type:
    Masters Thesis
    Full Text:
    linearity. Thus, the use of a sub-radix 2 will eliminate the saturation of residue voltages. (2+e).A(v D

  • 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:
    15 −3 −2 −1 0 1 2 3 0 0.1 0.2 0.3 0.4 Comparator Offset [σ] P ro b a b il it y D e n s

  • Design techniques for radiation hardened-phase locked loops

    Creator:
    Nemmani, Anantha Nag
    Abstract:
    Spacecrafts experience radiation in the course of their operation and all electronic equipment on board these spacecrafts has to be designed to withstand the effects of this radiation. This thesis describes the effects of total ionization dose (TID) and single event transients (SET) in phase-locked loops - an important circuit...
    Resource Type:
    Masters Thesis
    Full Text:
    oscillator (VCO), (b) frequency divider, (c) phase/frequency detector (PFD) (d) charge pump, and (e) loop

  • 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:
    . . . . . . . . . . . . . . . . . . . . . . . . . 68 3.32 T. H. D vs. Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 3.33

  • Duty-cycle controlled switched resistor techniques for continuously tunable, low-voltage circuits

    Creator:
    Kurahashi, Peter
    Abstract:
    A duty-cycle controlled switched resistor is a tunable resistive element that uses pulse width modulation as the method of tuning. This thesis will describe the operation of switched resistors and propose several circuit architectures that are well suited to the use of switched resistors. These architectures include filters, mixers, and...
    Resource Type:
    Dissertation
    Full Text:
    200 300 400 500 0 0.2 0.4 0.6 0.8 1 Time [ns] A m p lit u d e [V ] Continuous (100