Title: Effect of mismatch on substrate noise coupling flash A/D converters
Authors: Stefanou, Athanasios
Gielen, Georges #
Issue Date: Dec-2007
Host Document: ICECS pages:1228-1231
Conference: ICECS location:Marrakech date:11-14 December 2007
Abstract: This paper proposes a model to evaluate the impact of substrate noise on a CMOS regenerative comparator and on a flash A/D converter. The presented approach initially relates the induced timing uncertainty of the comparator to the substrate noise and accounts for possible mismatches in the comparator. Subsequently, the obtained expression for the timing uncertainty is used to derive a generalized expression for the SNR reduction in flash A/D converters that incorporate mismatched comparators. The developed approach is validated on a 10-bit flash A/D and is utilized to investigate performance degradation of practical converters.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:ESAT - MICAS, Microelectronics and Sensors
# (joint) last author

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