Products > Test Equipment
MSO5000 Bode Plot Capability: Is it Good Enough? [Many tips about a 1st scope]
egonotto:
Hello,
I tried a Bode plot with an LC oscillating circuit. The signal is severely disturbed, but it still worked to some extent. Enclosed the circuit (drawn with the mouse) and the Bode plot, the signals measured with the AD2 and a signal measured with the RTA4000.
Waveforms can now run the function generator with 25 MHz, but there is a warning. This means that the network analyzer now goes up to 25 MHz.
Best regards
egonotto
Fungus:
FWIW: Here's a screenshot taken with my AD2 with nothing connected to the input. 5 or 10 mV is about as low as it usefully goes.
Below it is a heatmap view. Note that you can have different, simultaneous views of the input signal. :)
AD2 specs are here: https://digilent.com/reference/test-and-measurement/analog-discovery-2/specifications
2N3055:
--- Quote from: balnazzar on October 04, 2022, 10:58:45 am ---
--- Quote from: 2N3055 on October 04, 2022, 10:49:36 am ---
Limit will be 10 MHz because that is the limit of internal waveform generator. Scope bandwidth is better, up to 30 MHz.
--- End quote ---
So, if I stimulate the circuit with an external WG, the AD2 will bodeplot its response? Thanks.
--- End quote ---
No, Bode plot and impedance analysis works by controlling generator and scope in synchronization. AD2 has internal AWG and uses that one...No support for external AWG.
egonotto:
Hello,
here is a 25 MHz sine with 1Vpp generated by the AD2.
Best regards
egonotto
2N3055:
--- Quote from: Fungus on October 04, 2022, 12:36:13 pm ---
--- Quote from: 2N3055 on October 04, 2022, 09:03:34 am ---You don't own AD2...
--- End quote ---
Ummm....
--- End quote ---
OK I was wrong on that. I stand corrected.
That is excellent news..
Why are you then repeating stuff from marketing pamphlets instead showing us how well it works?
In Siglent's A.N. I linked there is very simple PSU made from common components. It is easy to replicate. Instead of expensive transformer, you can use largest common mode choke you can find and use that one. It'll work well enough.
And then run analysis and show us results, please.
I'm really curious to see how well it works. If it works well (or at least decent) it is a good news. It will also be directly applicable to OP question and comparisons to SDS1104X-E mentioned here..
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