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22 wrz 2020 · The crucial test for any 70Mhz (or any other) bandwidth Oscilloscope (and probes) is to accurately display 70Mhz square wave in this case. Applying Nyquist sampling, means the rising and trailing edges of that 70Mhz square wave will display as a 400 pico Second slope.
Nyquist’s sampling theorem states that for a limited bandwidth (band-limited) signal with maximum frequency fmax, the equally spaced sampling frequency fs must be greater than twice of the maximum frequency fmax, i.e., fs > 2·fmax. in order to have the signal be uniquely reconstructed without aliasing.
How much bandwidth does your oscilloscope really need? Learn how to choose the correct bandwidth oscilloscope for your application. Choose a country or area to see content specific to your location
Bandwidth is maximum frequency of an input signal which can pass through the analog front end of the scope with minimal amplitude loss (from the tip of the probe to the input of the oscilloscope ADC).
21 lis 2006 · Choosing an Oscilloscope with the Right Bandwidth. Bandwidth is the specification that most engineers consider first when they select an oscilloscope. This article provides some guidance on how to select an oscilloscope with the appropriate bandwidth for digital and analog applications.
24 mar 2020 · Oscilloscopes with a maximally-flat frequency response have a sharper roll-off and a sampling rate of about 2.5 times the oscilloscope bandwidth should be sufficient. In this article, we’ll examine two important specifications of a digital oscilloscope: analog bandwidth and sampling rate.
The third step is to determine the oscilloscope bandwidth required to measure this signal, based on your desired degree of accuracy when measuring rise times and fall times.
