An pipeline analog-to-digital converter (ADC) is provided that is capable of
applying
calibration at a resolution greater than the resolution of a digital output signal
provided by the ADC. The ADC includes a calibration component adapted to apply
calibration bits to digital output bits generated by stages of the pipeline and
corresponding to samples of an analog input signal. The ADC also includes a random
number generator that provides at least one random bit having a sub-LSB bit weight.
The calibration bits and the at least one random bit are applied as a dither to
the digital output bits such that, on average, the digital output signal provided
by the ADC is calibrated at a sub-LSB resolution.
