Hi there,
The output of Agilent 33220A can be maximum +5V. I need more than +5V, so i made a simple DC amlifier circuit connected to the 50ohms output of the instrument. (I need 2*Vin)
When i set manually the output of the intrument as "High Z" then all is fine.
Then amplification works as desired.: I tried 0...4V input->0...8V output.
Then I tried to set output in the Labview as follows:
Offset voltage = 1V.
DC amplifier board disconnected:
When I connect my voltmeter to the output of the function generator i measure the same as I configured in labview: 1V
DC amplifier board connected:
When I connect my amplifier circuit to the 50 ohms output of functioin generator, then i get some strange amplification value. 2.59V
Measurement voltage should be 2V.
I tested amplifier circuit and it works fine without labview.
In short I can't get higher than 5V in the output of amplifier circuit no matter what i do in labview, but when i set things manually all is fine.
Have you got any ideas why this happens?
