Hi, I'd like to clarify a figure from the datasheet of the ADL5382 that has caused me a few issues recently.
The figure for output swing is 2Vp-p with a common mode voltage of 2.2V when VPOS is 5V. I realise the device can swing more than 2Vp-p, but if we were to say that this was the absolute limit of what the device could swing between which of the following examples is true (just for the I channel output)...
A: I+ = 2.2v + 0.5v = 2.7v I+ = 2.2v - 0.5v = 1.7v
and swinging in the other direction... giving 2Vp-p due to the +1v - -1v
I- = 2.2v - 0.5v = 1.7v I- = 2.2V + 0.5v = 2.7v
B: I+ = 2.2v + 1v = 3.2v I+ = 2.2v - 1v = 1.2v
and swinging in the other direction... giving 2Vp-p due to the 2v difference at any one time
I- = 2.2v - 1v = 1.2v I- = 2.2V + 1v = 3.2v