Transient-to-digital converter for protection design in CMOS integrated circuits against electrical fast transient

An on-chip transient-to-digital converter for protection design against electrical fast transient (EFT) is proposed. The proposed transient-to-digital converter is designed to detect fast electrical transients under EFT tests. The output digital codes can correspond to different EFT voltages during the EFT-induced transient disturbances. The experimental results in a 0.18-mum CMOS integrated circuit (IC) with 3.3-V devices have confirmed the detection function and digital output codes.