Adaptive digital correction of analog errors in MASH ADCs. I. Off-line and blind on-line calibration

@inproceedings{Cauwenberghs2000AdaptiveDC,
  title={Adaptive digital correction of analog errors in MASH ADCs. I. Off-line and blind on-line calibration},
  author={Gert Cauwenberghs and Gabor C. Temes},
  year={2000}
}
Cascaded delta-sigma (MASH) modulators for higher order oversampled analog-to-digital conversion rely on precise matching of contributions from different quantizers to cancel lower order quantization noise from intermediate delta-sigma stages. This first part of the paper studies the effect of analog imperfections in the implementation, such as finite gain of the amplifiers and capacitor ratio mismatch, and presents algorithms and architectures for digital correction of such analog… CONTINUE READING

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