I am designing a stage behind an AD9834.
This is a DDS where the DAC has a differential current output.
Because i want to amplify this sine wave to ~3v3, i need to use some opamps.
I am using LTSpice to model this, so i need to know the signals of the DAC.
So i made my own board and measured the sine waves that are coming out of the DAC.
When i measured the outputs, i get the waveforms on my scope.
These are shifted 180 degrees, as it should be. With the yellow one being 568mVpp.
I want to know the DC offset of this waveform, so i can use it in my SPICE voltage.
I tried calculating the DC offset from the RMS voltage, but the formula's don' t add up.
I've used the below theory to calculate it.
And idea how i can extrapolate the DC offset from this sine wave ?
http://masteringelectronicsdesign.com/how-to-derive-the-rms-value-of-a-sine-wave-with-a-dc-offset/