Text preview for : 5989-5733EN Evaluating Oscilloscope Bandwidths for Your Application - Application Note c20140920 [13 part of Agilent 5989-5733EN Evaluating Oscilloscope Bandwidths for Your Application - Application Note c20140920 [13 Agilent 5989-5733EN Evaluating Oscilloscope Bandwidths for Your Application - Application Note c20140920 [13].pdf
Back to : 5989-5733EN Evaluating Os | Home
Keysight Technologies
Evaluating Oscilloscope Bandwidths
for Your Application
Application Note
Introduction
Bandwidth is the specification that most engineers consider first when they se-
lect an oscilloscope. In this application note we will provide you with some helpful
hints on how to select an oscilloscope with the appropriate bandwidth for both
your digital and analog applications. But first, let's define oscilloscope bandwidth.
Table of Contents
Introduction ................................................................................................................2
Defining Oscilloscope Bandwidth ..............................................................................3
Required Bandwidth for Digital Applications ............................................................5
Digital Clock Measurement Comparisons .................................................................7
Required Bandwidth for Analog Applications............................................................9
Summary ...................................................................................................................10
Related Keysight Literature ......................................................................................11
Glossary ....................................................................................................................12
Defining Oscilloscope Bandwidth
All oscilloscopes exhibit a low-pass
frequency response that rolls-off
at higher frequencies, as shown in
Figure 1. Most scopes with bandwidth
specifications of 1 GHz and below
typically have what is called a
Gaussian response, which exhibits a
slow roll-off characteristic beginning at
approximately one-third the