I have an op amp gain circuit at the output of a 2 stage filter. It seems like at high gain settings (x500), the steady state voltage shifts significantly. I am trying to keep it at ~1.7V and it shifts close to 3V after the amplification stage. In some circuit designs I see the amplification stage between stage 1 and 2 of the filter. Does that keep the voltage from shifting up? How can I keep the voltage consistent while also having high signal amplification?