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Analog Discovery 2 speed and triggering


A customer on our website asked the following question:

Hello, I think your product, Analog Discovery 2, looks really great. I hope it will work out for my needs! But I have a few questions first.

I'd like to generate single externally triggerable voltage pulses between -2 and +2 Volts down to 50 ns or less. You say the AWG operates at 100MS/s, so does this mean at every 10 ns, the volateg output can change? Could I generate a 10 ns pulse then?

I'd like to also read an analog voltage during and a bit after the generated pulse. Can I coordinate those two events with an external trigger?

I'd like to write my own program using your SDK to generate the pulse and read an analog voltage during the pulse. Would that be technically possible?

Thank you so much in advance!

The response is below.

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I don't personally know the answer to your questions, but I have placed this question in the appropriate section of the forum where the engineer best suited to answer your question can see it.


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With the AWG you can generate pulses up to 10MHz. The DAC is running at 100MHz and the analog bandwidth is around 10MHz.
See the Analog Discovery 2 reference manual: https://reference.digilentinc.com/analog_discovery_2/refmanual

The Scope can be triggered by external digital trigger signal (1.2V or 3.3V logic) or device internal signals (like AWG start).
At high speed analysis it is better to compare the actual nanosecond level AWG output with your circuit's signal, using Scope channel 1 and 2.

You can find the WaveForms SDK (manual and examples) in the installation: https://reference.digilentinc.com/waveforms3

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