OUTPUT DRIVER, ELECTRICAL DEVICE HAVING THE OUTPUT DRIVER, AND METHOD OF EVALUATING THE OUTPUT DRIVER

摘要

An output driver includes a data processing unit configured to perform a data processing on an input signal to generate processing result data; a D/A (Digital-to-Analog) conversion unit configured to apply D/A conversion on the processing result data to generate an analog signal; an output amplifier configured to amplify the analog signal to obtain an amplified analog signal as an output signal; a comparing unit configured to compare the processing result data with expected value data to obtain and output comparison result data; and an output control unit configured to select the comparison result data as the output signal instead of the amplified analog signal according to a comparison output selection signal.