| 摘要 |
According to one embodiment of the present invention, a system (100) for calibrating data converters (101) is disclosed that includes a data converter (101) that receives an input signal and generates one or more pre-digital error correction codes from the input signal. A calibrator (150) receives the pre-digital error correction codes, formulating one or more transition voltage expressions using the pre-digital error correction codes, and compares the transition voltage expressions to one or more measured transition voltage values to generate one or more calibrated values. More specifically, the data converter (101) may be a pipelined analog-to-digital converter (101). According to one embodiment of the present invention, a method for calibrating data converters (101) is disclosed. First, an input signal is input into a data converter (101). Second, pre-digital error correction codes for the input signal are provided by the data converter. Third, transition voltages are measured to yield measured transition voltage values. Fourth, transition voltage expressions are formulated using the pre-digital error correction codes. Fifth, calibrated values are calculated by comparing the transition voltage expressions to the measured transition voltage values. Finally, the data converter (101) is calibrated using the calibrated values.
|
