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This paper deals with the susceptibility of input digital front-end to electromagnetic interference (EMI) that, due to the rapid growth of the EM pollution and to the continuous reduction of the supply voltage, has become a major issue in system reliability. In this context, a new digital input front-end highly immune to the radio-frequency interference (RFI) collected by wiring interconnects (e.g., printed circuit board traces). This receiver is able to retrieve the nominal logic value of the transmitted binary data corrupted by EM disturbances and to estimate the EM disturbance amplitude affecting the binary input signal. The effectiveness of the proposed front-end is proved through computer simulations and experimental measurements.