I am trying to scale a voltage, offset it, and then send it through an LPF with a 1 time constant. I can scale it and offset it appropriately, but when I put it through a passive LPF, thi signal gets messed up. Here is a picture.
Question: I want 0-3.3v analog output. After the first stage, I get that. After my LPF, the signal goes to 1.6V and stays there. Why? How do i fix it? Is there a better way to do this?
Thank you in advance.
Question: I want 0-3.3v analog output. After the first stage, I get that. After my LPF, the signal goes to 1.6V and stays there. Why? How do i fix it? Is there a better way to do this?
Thank you in advance.