Understanding Oscilloscopes - Bandwidth

This video provides a technical introduction to oscilloscope bandwidth, including how bandwidth is specified, why bandwidth is important, and how to determine the bandwidth required for a given measurement application.

Timeline:
00:00 Introduction
00:18 About amplitude accuracy
01:13 Defining “bandwidth”
01:57 Consequences of insufficient bandwidth
02:35 Example: bandwidth and waveform shape
03:05 Example: bandwidth and rise time measurements
03:52 Selecting bandwidth for “analog” signals
04:55 Selecting bandwidth for “digital” signals
06:18 Bandwidth and frequency response
07:14 Gaussian frequency response
07:52 Flat (brick wall) frequency response
08:51 Passband flatness
09:34 Using rise time to determine required bandwidth
10:20 Calculating bandwidth from rise time
10:57 Using FFT to determine required bandwidth
12:02 System bandwidth
12:47 About probe bandwidth
13:34 Intentionally reducing bandwidth
14:26 Summary

[kumara]

Nice explanation about Bandwidth. Thank you so much!

[krishnasa]

Excellent explanation as always. Thank you very much.

[shalom-shlomi-zigdon]

GREAT presentation, excellent speaker, Thanks

[sinojha]

Great presentation as always, thank you!

[ChristianSamsung-ze]

Hi, the flat response in the graphs on most pages don't correspond with the BW indication...just on page 12 it is shown right. Otherwise really good...thanks!

[AdelAlmahmoud-yvnd]

Sir, how does the bandwidth relate to the scope sample rate ?
and should the sample rate be at least twice as the bandwidth of the scope ?
Thanks Eng.Paul

[arash]

Hi,
Thank you, that was excellent.
Is the 10x on the probe related to this topic as well? How does it contribute?
Regards.

[lillyzegarra]

Why are you saying that frequency attenuated by 3 dB is (~30%)? WTF!