Stage error calibration inside pipeline ADC

摘要

The analog-to-digital converter (ADC) (200), multiple pipelines ADC (the 2021 and includes the 2022) and the adjustment circuit (204). In order each pipeline ADC, the analog input signal (AIN) to receive, it reaches and in order the output signal (Da and dB) to generate the output circuit (206) vis-a-vis, adaptation, it possesses adjustment possible transfer function, includes the compensator. The adjustment circuit (204), in order to lose presumption ambiguity generally, in order for it to be possible to adjust the transfer function for each pipeline ADC it is joined to each pipeline ADC. In addition, the adjustment circuit inside inside internal stage gain error and DAC gain error at least one is included presumes stage error, in order to compensate internal stage error, adjusts the compensator for each pipeline ADC.