I have a Problem with an LTspice simulation. Specifically, I am designing an 12V bridge amplifier. The Problem in my simulation is that there is an DC offset which partially defies logic as far as I can tell. I attached a screenshot of the schematic for reference. Please Note that this is a first draft!
As you can see, there is an 700 and then some mV DC Offset at the Inputs of the LTC6248 OP amps, behind the decoupling capacitors C1/2 at the outputs of the LT1994, which should not be there as far as I can tell. The capacitor should block all DC parts from U1 and the inputs of U2/3 should not generate a Voltege that large (thinking about the opamps dc offset here...)
The problem occurs with LTspiceIV and XVII,which are very picky as of late (XIIV in general, has anyone else trouble with LTspice as of late?) and also with different opamps and with ideal op`s. All models are from Linear and came with LTspice, no 3rd party libs used. So I am at a loss here and hope that anyone has an Idea where the DC offset comes from.