Testing ADCs used in High Speed High resolution Digital Waveform Recorders

Abstract

Testing and calibration of high speed high - resolution digitizer (I. e. the ADC) used in HV impulse measurements is mandatory as per modern metrology, especially, in intercomparison and reference mesurements, where extremely high levels of accuracies are demaanded. Such testing services are, at the present moment, not being offered in country. Digitizer or oscilloscope manufacturers quete exorbitant prices for providing the same, as in most cases the equipment needs to be sent oversease, also there exists no national standard for such test. Despite this, HV labs in the country use digital impulse measuring systems and, so are compelled to undertake this costly exercise, on expire of the test certificate. This was the prime motivation.