Part Number: LMH5401
Hi,
Are IN+/IN- and OUT+/OUT- completely, that is 100% symmetrical and hence interchangeable on an FDA like LMH5401? The reason I am asking is that I’m using 4 LMH5401 in SE to Diff configuration to drive a 4 channel ADC (ADS54J54) with Diff inputs. Our placement and layout works best if I reverse the polarity of the FDA’s outputs toward ADC, that is to connect OUT+ on FDA to IN- on ADC, on two of the channels. The other two channels work fine straight. In order to avoid reversal of the signals I thought I connect my SE input to IN- of those FDAs that need pol. reversal (as oppose to IN+ for the other two FDAs) assumption being that FDAs are absolutely symmetrical. Is this the case?
My signal is irregular fast pulses between +1 and -1V and not even necessarily symmetrical around DC so the polarity should be conserved.
Regards/Ramin