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Filtering by: Creator Gray, Matthew W. Remove constraint Creator: Gray, Matthew W. Advisor Temes, Gabor C. Remove constraint Advisor: Temes, Gabor C.

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  • The design of a postfilter for a delta-sigma digital-to-analog converter

    Creator:
    Chen, Chao-Yin
    Resource Type:
    Masters Thesis
    Full Text:
    Vp, is the peak output voltage V,(w) of op- amp i and Vp,o,,, is the peak (passband) value of Vout

  • Oversampling digital-to-analog converters

    Creator:
    Shu, Shaofeng
    Abstract:
    Oversampling and noise-shaping methods for digital-to-analog (D/A) conversion have been widely accepted as methods of choice in high performance data conversion applications. In this thesis, the fundamentals of D/A conversion and oversampling D/A conversion were discussed, along with the detailed analysis and comparison of the reported state-of-the-art oversampling D/A converters....
    Resource Type:
    Dissertation

  • Design techniques of high-performance switched capacitor circuits in the presence of component imperfections

    Creator:
    Huang, Yunteng
    Abstract:
    This thesis describes design techniques for high-performance switched-capacitor (SC) circuits, primarily for high-linearity low-noise SC circuits in the presence of component imperfections, such as nonlinear op-amp voltage transfer characteristics, capacitor nonlinearities as well as the finite op-amp dc gain and op-amp offset and noise. Various correlated-double-sampling (CDS) schemes are discussed,...
    Resource Type:
    Dissertation
    Full Text:
    node, the output voltage becomes yin (a) w 0.5 0 a) 0) co 0 > -0.5 track hold vin 2

  • Improved design techniques for low-voltage low-power switched-capacitor delta-sigma modulators

    Creator:
    Grilo, Jorge
    Abstract:
    This dissertation investigates the constraints which arise when switched-capacitor (SC) delta-sigma modulators are designed for low-voltage operation, targeting also low power dissipation, and proposes methods of improving the performance and optimizing for low power dissipation. This is accomplished by identifying critical elements whose performance can lead to increased power dissipation,...
    Resource Type:
    Dissertation
    Full Text:
    noise sources [23]: P. = / 2 1 rw (S (w) IHi(c0)12)do.) (2.7) 7r bw e where Set represents the

  • 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:
    - / ......... W // i 3 60 - ,' /...-' 4 0 0.1 0.2 0.3 0.4 0 5 1 Uncompensated amp. 2 Amp. in Fig. 2.5 3 Amp

  • 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:
    approximated by the following equation [15] I = 1 CoxW(VsG IVTI)22 n (1 + XVsD) (2.2) Here, Cox, W, L and X

  • 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

  • Low-voltage pipeline A/D converter

    Creator:
    Wu, Lei
    Abstract:
    Continuous process scale-down and emerging markets for low-power/low-voltage mobile systems call for low-voltage analog integrated circuits. Switched-capacitor (SC) circuits are the building blocks for analog signal processing and will encounter severe overdrive problems when operating at low voltage conditions. There exist three techniques to solve the problem, but with their...
    Resource Type:
    Masters Thesis

  • 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:
    5 Swit cl1 setting 6 E..) C,,, C,4 C14 C,4 C,,, C14 F--I"w- 1 1+23 3*43j8 .c-Fi-L>f- 1 1*2.1 i

  • 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:
    Gain Phase Margin 84.4° Output Swing (V) 1.0 Power Consumption (mW) 12.24 (W/L)Ml (jm/im) 1749/0.18 (W