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How much power can the AWG on an MSO5000 scope output?

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BeBuLamar:
If you want more power and don't need very high frequency you can connect the output of the AWG to an audio power amplifier which can deliver something like 100W at reasonable cost.

ballsystemlord:

--- Quote from: ballsystemlord on June 30, 2023, 05:49:01 pm ---I don't imagine it would be much, but at the same time I don't want to accidentally overload the poor thing and break the oscilloscope.

--- End quote ---

<snip>
I meant the AWG portion.
I rather thought that was implicit since the input is 1Mohm.


--- Quote from: bdunham7 on July 02, 2023, 07:31:12 pm ---
--- Quote from: ballsystemlord on July 02, 2023, 07:17:28 pm ---So an AWG attached to an Oscilloscope is designed not to overload the scope if it's shorted directly to the input of the Oscilloscope and that is the reason for the lower power rating of said AWG?

--- End quote ---

No, not really--it's just a less expensive, lower-power version.  It actually isn't super cheap or easy to make the output of an AWG go to +/-10 volts, and even a more powerful full-featured AWG isn't going to harm your scope.

--- End quote ---

I was actually trying to understand what was meant by, "...the nature of the beast." Full quote below.


--- Quote from: tautech on July 01, 2023, 01:48:39 am ---
--- Quote ---But I guess it's more like a nice tacked-on feature.
--- End quote ---
No, it's just the nature of the beast.  ;)

--- End quote ---

tautech:

--- Quote from: ballsystemlord on July 02, 2023, 09:04:19 pm ---I was actually trying to understand what was meant by, "...the nature of the beast." Full quote below.


--- Quote from: tautech on July 01, 2023, 01:48:39 am ---
--- Quote ---But I guess it's more like a nice tacked-on feature.
--- End quote ---
No, it's just the nature of the beast.  ;)

--- End quote ---

--- End quote ---
Inbuilt AWG's provide very limited drive and functionality, that can be fine when you don't need much of either but a standalone AWG performs at another level of functionality.

radiolistener:

--- Quote from: ballsystemlord on July 02, 2023, 07:17:28 pm ---So an AWG attached to an Oscilloscope is designed not to overload the scope if it's shorted directly to the input of the Oscilloscope and that is the reason for the lower power rating of said AWG?

--- End quote ---

No, it just designed to produce good quality signal without very expensive and heavy power amplifier.

As said above you can use audio power amplifier if you want to get high power low frequency. For a high frequency power amplifier is more complicated and expensive. You can use short wave power amplifier with 100-200 Watt output, but they usually very sensitive to a load impedance mismatch, so if you want to use it with load other than 50 Ω it will be an issue because it will lead to trigger protection circuit or even damage of amplifier.

Another way for high frequency is to use short wave tube power amplifier, they allows to get up to 2000 Watts and more, but it's not safe, because they are working at high voltage (several kilovolts) and dangerous current.

if you want 5-10 Watt power, there are available power amplifiers for measurement purposes, such as Rigol PA1011.

TimFox:
A typical free-standing AWG (Rigol DG900) can output 10 V pk-pk into 50\$\Omega\$ up to 10 MHz, falling to 1 V pk-pk above 60 MHz.
A 10 V pk-pk sine wave into 50\$\Omega\$ is 250 mW = +24 dBm.
If you need more power than that, then an appropriate amplifier is required.

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