An integrated circuit device includes a delay circuit, sampling circuit and delay control circuit that cooperate to carry out adaptive timing calibration. The delay circuit generates a timing signal by delaying an aperiodic input signal for a first interval. The sampling circuit samples a data signal in response to the timing signal to generate a sequence of data samples, and also samples the data signal in response to a phase-shifted version of the timing signal to generate a sequence of edge samples. The delay control circuit adjusts the first interval based, at least in part, on a phase error indicated by the sequence of data samples and the sequence of edge samples.