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Filtering by: Creator Wang, Joyce M. Remove constraint Creator: Wang, Joyce M. Subject Analog-to-digital converters Remove constraint Subject: Analog-to-digital converters

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  • A fully digital technique for the estimation and correction of the DAC error in multi-bit delta sigma ADCs

    Creator:
    Wang, Xuesheng
    Abstract:
    This thesis proposes a novel fully digital technique for the estimation and correction of the DAC error in multi-bit delta sigma ADCs. The structure of the DAC error is indicated through a simple model for unit-element based DACs. The impact of the DAC error on the performance of ADC is...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Xuesheng Wang for the degree

  • High-accuracy circuits for on-chip capacitor ratio testing and sensor readout

    Creator:
    Wang, Bo, 1970-
    Abstract:
    The precise measurement of a capacitance difference or ratio in a digital form is very important for capacitive sensors, for CMOS process characterization as well as for the realization of precise switched-capacitor data converters, amplifiers and other circuits utilizing ratioed capacitors. This thesis introduces design techniques for on-chip capacitor ratio...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF Bo Wang for the degree of Doctor

  • Techniques for improving timing accuracy of multi-gigahertz track/hold circuits

    Creator:
    Wang, Jingguang
    Abstract:
    Multi-Gigahertz sampling rate Analog-to-Digital Converters (ADC) with 5-8 bits resolution are used in many signal communication applications. Unfortunately, the performance of the high speed ADC is limited by the timing accuracy of the sampling clock. A small sampling uncertainty can cause a large error in the sampled voltage and result...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Jingguang Wang for the degree of Master of Science in Electrical

  • 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

  • Design techniques for VCO based digital sensor readout circuits

    Creator:
    Prabha, Praveen
    Abstract:
    Sensors find a variety of applications in portable electronics, automotive and biomedical solutions. The demand for low power and high dynamic range makes the design of digital sensor readout circuits quite challenging. Traditionally, these circuits are realized using amplifiers with passive feedback or precision analog comparators which are power hungry...
    Resource Type:
    Masters Thesis
    Full Text:
    bias, RSH is usually of the order of hundreds to thousands of MΩ and RSER is of the order of a few Ω

  • Design of high-speed summing circuitry and comparator for adaptive parallel multi-level decision feedback equalization

    Creator:
    Gao, Hairong
    Abstract:
    Multi-level decision feedback equalization (MDFE) is an effective sampled signal processing technique to remove inter-symbol interference (ISI) from disk read-back signals. Parallelism which doubles the symbol rate can be realized by utilizing the characteristic of channel response and decision feedback equalization algorithm. A mixed-signal IC implementation has been chosen for...
    Resource Type:
    Masters Thesis
    Full Text:
    Forejt, Ravi Gupta, Ramsin Ziazadeh, Bo Wang, Yunteng Huang, Jianjun Zhou and many others for many

  • Compensation techniques for cascaded delta-sigma A/D converters and high-performance switched-capacitor circuits

    Creator:
    Sun, Tao
    Abstract:
    This thesis describes compensation techniques for cascaded delta-sigma A/D converters (ADCs) and high-performance switched-capacitor (SC) circuits. Various correlated-double-sampling (CDS) techniques are presented to reduce the effects of the nonidealities, such as clock feedthrough, charge injection, opamp input-referred noise and offset, and finite opamp gain, in SC circuits. A CDS technique...
    Resource Type:
    Dissertation
    Full Text:
    technical discussions. I also would like to thank Yunteng Huang, Bo Wang, Hirokazu Yoshizawa and Jesper

  • 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:
    and help from Kyehyung Lee, Sunwoo Kwon, Yan Wang, Weilun Shen, Wenhuan Yu, Hoyoung Lee, Taehwan Oh

  • Compensation method of the excess loop delay in continuous-time delta-sigma ADCs based on model matching approach

    Creator:
    Guo, Jia
    Abstract:
    Continues-Time (CT) Delta-Sigma (ΔΣ) Analog-to-Digital Converters (ADCs) have one important constrain, namely the excess loop delay. Most previous excess lop delay compensation methods need to know the exact value of the excess loop delay in advance. However, the value of the excess loop delay is a uniformly distribution random variable....
    Resource Type:
    Masters Thesis
    Full Text:
    . Furthermore, I would like to thank my roommates, Ming Chen and Guangxin Wang, for their friendships, helps

  • 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:
    Yu, Yan Wang, Weilun Shen, Tong Tao, Wang Tao, Wei Li, Po-Yao Ke, Jiaming Lin, Chia-Hung Chen