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Extending the dynamic range of analog-to-digital converters (ADCs) is an important issue in their application field. This paper presents a novel nonlinear equalizer based on the cube coefficient subspace (CCS) architecture to mitigate nonlinearities inherent in ADCs. The proposed equalizer is verified with a 14-bit, 200-MSPS ADC injected a two-tone signal. Simulation results show that it achieves a 16.55 dB improvement in dynamic range with a computational complexity of 110 operations perdoi:10.1587/elex.13.20160039 fatcat:ifg2xzmnoba6bo3yfup3gx4aca