GUIDE FOR POWER INTEGRITY MEASUREMENTS
5 techniques for fast, accurate power integrity measurements
Challenging power integrity measurements can be performed quickly and accurately with this helpful guide.
Rail voltages are getting smaller, and tolerances are decreasing. As a result, making accurate power rail measurements has become much more difficult. In the past, any oscilloscope was able to measure ripple on historical 5 V rails with 10% tolerance, since the 500 mV requirement was well above the noise level of the oscilloscope.
Industry dynamics are driving both a decrease in rail voltage values as well as tighter tolerances across a wide range of rails. Making an accurate ripple measurement on a 1 V rail with 2% tolerance, for example, is difficult on all oscilloscopes. This guide describes five tips for making accurate power integrity measurements with oscilloscopes.
The white paper focuses on the following topics:
- Choosing an oscilloscope with low noise is critical to accurate power integrity measurements
- Coupling the oscilloscope with a 1:1 probe with built-in offset, high bandwidth, high DC impedance and an integrated R&S®ProbeMeter delivers superior capability and measurements
- Understanding and correctly setting a number of oscilloscope attributes
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