Ray Wilson authored this content while he was actively running MFOS as the founder and resident genius.
We retain the content because it reflects a valuable point of view representing that time and place.

Article by Ray Wilson

Add Gain To Or Level Shift A Signal

This is the general solution for level shifting a signal. The first op amp inverts and cuts or boosts the signal to the desired amplitude. The second op amp re-inverts to restore the original polarity and also allows application of DC offset.