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  • Layout dependent and bias independent scalable substrate model for RF MOSFETs

    Creator:
    Suravarapu, Ravikanth
    Abstract:
    The dependence of the substrate resistance, R[subscript sub], for MOS transistor RF modeling on transistor biasing and layout is studied from device simulations and measurements. Though R[subscript sub] is found to be bias dependent, the error incurred by assuming a constant value equal to the DC resistance is not significant....
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Ravikanth Suravarapu for the

  • Design of current-mode track and hold circuits

    Creator:
    Chennam, Madhusudhan
    Abstract:
    A differential current-mode track-and-hold (T/H) amplifier is used to sample an analog input signal. A new closed-loop current-mode architecture has been developed that overcomes the stability problems associated with closed-loop architectures. The T/H circuit has been fabricated in a 0.35-μm quad-metal, double-poly CMOS process. The measured total harmonic distortion (THD)...
    Resource Type:
    Masters Thesis
    Full Text:
    , Chenggang Xu, Sachin Ranganathan, Suravarapu Ravikanth, Aline Sadate, Shauthi Bhagavatheeswaran, Uma

  • Substrate coupling macromodel for lightly doped CMOS processes

    Creator:
    Koteeswaran, Mohanalakshmi
    Abstract:
    A scalable macromodel for substrate noise coupling in lightly doped substrates with and without a buried layer has been developed. This model is based on Z-parameters and is scalable with contact size and separation. This model requires process dependent parameters that can be extracted easily from a small number of...
    Resource Type:
    Masters Thesis
    Full Text:
    Sharma, Ranganathan Desikachari, Manu Mishra, Sachin Rangan- than, Ravikanth Suravarapu, Manas Behera

  • An efficient modeling approach for substrate noise coupling analysis with multiple contacts in heavily doped CMOS processes

    Creator:
    Özis, Hatice Dicle
    Abstract:
    A computationally efficient and accurate substrate noise coupling model for multiple contacts in heavily doped CMOS processes is presented and validated with simulations and experimental data. The model is based on Z parameters that are scalable with contact separation and size. This results in fast extraction of substrate resistances for...
    Resource Type:
    Masters Thesis
    Full Text:
    Constand, Zhimin Li, Taras Dudar, Volodymyr Kratyuk, Ravikanth Suravarapu, Kannan Soundarapandian, Mo

  • Analysis and design of CMOS RF LNAs with ESD protection

    Creator:
    Chandrasekhar, Vinay
    Abstract:
    An analysis that accounts for the effect of standard electrostatic discharge (ESD) structures on critical LNA specifications of noise figure, input matching and gain is presented. It is shown that the ESD structures degrade LNA performance particularly for higher frequency applications. Two LNAs, one with ESD protection and one without,...
    Resource Type:
    Masters Thesis
    Full Text:
    Mishra, Ragini Murugan, Yuxian Ou, Dicle Ozis, Ajit Sharma, Kannan Soundara- pandian, Ravikanth