A High-Resolution Low-Power Incremental $\Sigma\Delta$ ADC With Extended Range for Biosensor Arrays

@article{Agah2010AHL,
  title={A High-Resolution Low-Power Incremental \$\Sigma\Delta\$ ADC With Extended Range for Biosensor Arrays},
  author={Ali Agah and Katelijn Vleugels and Peter B. Griffin and Mostafa Ronaghi and James D. Plummer and Bruce A. Wooley},
  journal={IEEE Journal of Solid-State Circuits},
  year={2010},
  volume={45},
  pages={1099-1110}
}
A calibration-free, high-resolution analog-to-digital converter designed for a bioluminescence sensor array employs incremental sigma-delta (ΣΔ) modulation to combine the advantages of oversampling with an input multiplexing capability. The resolution of incremental ΣΔ modulators can be improved significantly by means of a technique similar to extended counting. In the approach proposed in this paper, analog-to-digital conversion is accomplished with a two-step process in which the residual… CONTINUE READING
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