Sigma-delta analog to digital converter architecture based upon a modulator design employing a mirrored integrator
作者： Z. Ignjatovic , M.F. Bocko
DOI: 10.1109/ISCAS.2004.1328399
关键词:
摘要: We present a method to increase the resolution and stability of /spl Sigma//spl Delta/ analog digital converters in which entire modulator is enclosed chopper-stabilization (CHS) structure. Simulations proposed architecture show that effects integrator opamp non-idealities (1/f noise, DC offset drift) digital-to-analog converter (DAC) even-order distortion harmonics are eliminated effect saturation reduced by up 27dB comparison existing designs. Finally, may be realized single-ended design enabling area-conservative circuit layouts.
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