Multi-sampling method in an EBT for logic waveform measurement

Abstract

Abstract A multi-sampling method is applied to logic waveform measurement. In this method, a number of pulses are generated in one logic cycle; these pulses are synchronized with the device clock. It offers a rise-time resolution as high as that of the stroboscopic method and a measurement time shorter than that of the stroboscopic method by a factor equal to the number of pulses generated in the logic cycle. A developed SE detector with an 8ns response time is able to measure a logic waveform with a 50MHz clock rate and 100k clock cycles within a measurement time of 100 seconds which is 1/100,000 as that by a stroboscopic method.