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Filtering by: Creator Nguyen, Vy T. Remove constraint Creator: Nguyen, Vy T. Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School Subject Modulators (Electronics) Remove constraint Subject: Modulators (Electronics)

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  • Design techniques for wideband low-power Delta-Sigma analog-to-digital converters

    Creator:
    Wang, Yan
    Abstract:
    Delta-Sigma (ΔΣ) analog-to-digital converters (ADCs) are traditionally used in high quality audio systems, instrumentation and measurement (I&M) and biomedical devices. With the continued downscaling of CMOS technology, they are becoming popular in wideband applications such as wireless and wired communication systems,high-definition television and radar systems. There are two general realizations...
    Resource Type:
    Dissertation
    Full Text:
    valuable suggestions on making presentations. I would like to thank Dr. Un-Ku Moon, Dr. Thinh Nguyen, Mr

  • High efficiency wideband low-power delta-sigma modulators

    Creator:
    Lee, Sang Hyeon
    Abstract:
    Delta-sigma analog-to-digital converters traditionally have been used for low speed, high resolution applications such as measurements, sensors, voice and audio systems. Through continued device scaling in CMOS technology and architectural and circuit level design innovations, they have even become popular for wideband, high dynamic range applications such as wired and...
    Resource Type:
    Dissertation
    Full Text:
    Nguyen, Professor Raviv Raich, and Professor William Warnes for their guidance and serving on my

  • Effects and compensation of the analog integrator nonidealities in dual-quantization delta-sigma modulators

    Creator:
    Yang, Yaohua, 1969-
    Resource Type:
    Masters Thesis
    Full Text:
    input-output relationship of the modulator can be shown as y (nT) = u (nT T) + e (nT) e (nT T) (1.1

  • Architectural Solutions for Analog Imperfections in ΔΣ Analog-to-Digital Based Systems

    Creator:
    Zali Asl, Samira
    Abstract:
    For today’s ubiquitous portable devices, innovative integrated circuits with high performance yet very low power are necessary. As these devices are used to communicate and sense real world signals in the environment, analog-to-digital converters (ADC) and systems are the key interface circuits needed to digitize the sensed information and they...
    Resource Type:
    Dissertation
    Full Text:
    input of 𝑉𝑉𝑖𝑖𝑛𝑛[𝑛𝑛𝑛𝑛] = 𝐴𝐴𝐴𝐴𝐴𝐴𝐴𝐴(2𝜋𝜋𝑓𝑓𝑖𝑖𝑛𝑛𝑛𝑛𝑛𝑛), in one clock period (T

  • Low-power high-resolution delta-sigma ADC design techniques

    Creator:
    Wang, Tao
    Abstract:
    This dissertation presents a low-power high-resolution delta-sigma ADC. Two new architectural design techniques are proposed to reduce the power dissipation of the ADC. Compared to the conventional active adder, the direct charge transfer (DCT) adder greatly saves power by keeping the feedback factor of the active adder unity. However, the...
    Resource Type:
    Dissertation
    Full Text:
    , no. 4, pp. 1078–1088, Apr. 2009. [1-10] K. Nguyen, R. Adams, K. Sweetland, and H. Chen, “A 106 dB

  • Delta-sigma modulators employing continuous-time circuits and mismatch-shaped DACs

    Creator:
    Zhang, Bo
    Abstract:
    Delta-sigma modulators are currently a very popular technique for making high-resolution analog-to-digital and digital-to-analog converters. These oversampled data converters have several advantages over conventional Nyquist-rate converters, including an insensitivity to many analog component imperfections, a simpler antialiasing filter and reduced accuracy requirements in the sample and hold. Though the initial...
    Resource Type:
    Dissertation
    Full Text:
    + -(3 -T) H(z) z2+ (-2+a+13)z+ (1-n) Z (-1+a+13-POZ+ (1 -(3-y) (2.4) (2.5) In the standard case, (a

  • Wideband and high accuracy delta sigma modulation data converter

    Creator:
    Jung, Youngho
    Abstract:
    Nowadays, needs for wideband and high accuracy analog-to-digital converter are increasing rapidly in manifold applications such as wireless communication, digital video and other consumer electronics. Besides, low power consumption is required to have longer battery life in portable systems. CMOS technology scaling and innovative modulator topology make the implementation much...
    Resource Type:
    Dissertation
    Full Text:
    Thinh Nguyen, and Professor Adam Schultz. They offered their valuable time and advice for my Ph.D

  • A dual-path 2-0 MASH ADC with dual digital error correction

    Creator:
    Zhang, Zhenyong
    Abstract:
    This dissertation presents a dual-path 2-0 MASH (Multi-stAge-noise -SHaping) ADC with two verified digital corrections of DAC mismatch error and quantization noise leakage. By using these two techniques, the requirements for the analog circuits are greatly relaxed. The dual-path structure generates two outputs, one only composed of conversion errors, the...
    Resource Type:
    Dissertation