A Time-Interleaved 12-b 270-MS/s SAR ADC With Virtual-Timing-Reference Timing-Skew Calibration Scheme.

This paper presents a two-way time-interleaved (TI) 12-b 270-MS/s successive approximation register (SAR) analog-to-digital converter (ADC) with a virtual-timing-reference timing-skew calibration scheme, in which the timing-skew calibration spurs present in conventional calibration schemes are effectively suppressed with the deferred reference sampling edge. The proposed design runs in a true back...