TESTER, DRIVER COMPARATOR CHIP, RESPONSE MEASURING DEVICE, CALIBRATION METHOD, AND CALIBRATION DEVICE

摘要

A response measuring device (20) in which the output end of a driver (14) and the input end of a comparator (16) are terminated at the earth potential through a transmission path (30). The device (20) comprises a driver control section (32) for outputting a first output waveform having a rising edge and a second output waveform having a falling edge and a difference calculating section (38) for calculating the difference between the response times according to the difference between a first time from when a comparator (16) detects the rising edge of the first output waveform until when the comparator (16) detects the falling edge of a first reflection wave produced when the first output waveform is reflected by the termination and a second time from when the comparator (16) detects the falling edge of the second output waveform until when the comparator (16) detects the rising edge of a second reflection waveform produced when the second output waveform is reflected by the termination.