How to Select the Right Probe Bandwidth - Probing Pitfalls

What bandwidth oscilloscope probe do you need?
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If you don’t have enough bandwidth in your probe, you won’t be able to see your true signal. Therefore, any of the measurements you make could be false, leading to errors and poor engineering decisions.

In this episode of Probing Pitfalls, Erin explains the dangers of choosing a probe with the wrong bandwidth and walks you through what bandwidth is, how much you need, and the consequences of choosing the wrong bandwidth.

She explains:
• How the 3dB point determines bandwidth specs
• How rise time of your signal determines how much bandwidth you need
• Why harmonics determine the bandwidth needed for square waves
• Why system bandwidth is the ultimate restriction on your test bandwidth

Stay tuned for future Probing Pitfalls episodes covering common probing mistakes and how to avoid them. You’ll be on your way to making more accurate measurements.

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Probing Pitfalls is hosted by Erin East and Melissa Spencer. The video series covers common oscilloscope probe pitfalls, the impact they have on your designs and measurements, and how avoiding them can improve your test results. You’ll learn proper probing practices that will save you time in validating and debugging your designs, plus improve your overall knowledge and skill in the test lab.

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