Digital calibration implementation for track-and-hold offset in a high-speed timing-interleaved folding and interpolating analog-to-digital converter

A digital calibration implementation for track-and-hold offset in a high-speed timing-interleaved folding and interpolating analog-to-digital converter is proposed in this paper. The spice simulation and measured results both show that the digital calibration technique can efficiently cancel the T/H offset and improve the linearity of the ADC.