Electrical Engineering

I have a differential signal source and a single source amplifier. The source has 2Vp-p signal. I wanted to center the differential signal around 2.5V, so I came up with the following circuit: Image_alt_text

Simulation results: Image_alt_text

Simulation does what I would expect and want the circuit to do, however, the differential input side uses Vref(V2) as a reference, which is coupled to ground only capacitively. My concern is if this is a valid approach, since the opamp specifies input common mode voltage of (V-)-100mV to (V+)-1.5V.

In my mind the input range now is from 0.5V to 4.5V, since the reference point is 2.5V. Is this valid or am I violating something?

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Biasing a differential opamp input

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