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[Author] Reza LOTFI(1hit)

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  • Analysis of Dynamic Non-linearities in Pipeline ADCs

    Mohammad TAHERZADEH-SANI  Reza LOTFI  Omid SHOAEI  

     
    PAPER

      Vol:
    E87-C No:6
      Page(s):
    976-984

    Dynamic non-linearities are of more importance in highly-linear high-speed applications such as software radios. In this paper, a fully-analytical approach to estimate the statistics of dynamic non-linearity parameters of pipeline analog-to-digital converters (ADCs) in the presence of circuit non-idealities is presented. These imperfections include the capacitor mismatches and the non-idealities in the operational amplifiers (op-amps). The most two important ADC dynamic non-linearity parameters, the spurious-free dynamic range (SFDR) and the signal-to-noise-and-distortion ratio (SNDR) are quantified here and closed-form formulas are presented. These formulas are useful for design automation as well as hand calculations of highly-linear pipeline ADCs. Behavioral simulations are presented to show the accuracy of the proposed equations.