Patent attributes
A pipeline analog to digital converter includes converter circuitries and a calibration circuitry. The converter circuitries sequentially convert an input signal into a plurality of first digital codes, in which a first converter circuitry in the converter circuitries is configured to perform a quantization according to a first signal to generate a first corresponding digital code in the first digital codes, and the first signal is a signal, which is processed by the first converter circuitry, of the input signal and a previous stage residue signal. The calibration circuitry combines the first digital codes to output a second digital code, detects whether the quantization is completed to generate control signals, and determines whether to set the second digital code to be a second corresponding digital code in predetermined digital codes according to the control signals.