Integrator circuit with offset

[umesh49]

Hi,
I have an error signal which moved around 2.5V. Is there any way I can design a op-amp based integrator to give me the output towards "0" if error in less than 2.5 and output towards 5V when error is more than 2.5V?

Thanks,
Umesh

 

[joseMiguel]

Hi,

perhaps i have not understood you question, but it seems that you also need a comparator.
regards
JoseMiguel

---------- Post added at 11:52 ---------- Previous post was at 11:43 ----------

Hi,

sometimes i wrote kind of algoritm, and i translate it with analog components (add and substract oamp) and so on.
regards
JoseMiguel

 

[FvM]

Assuming a basic inverting integrator, you simply need to bias the +ve input to 2.5V.

P.S.: I didn't notice the intended positive gain. A BTC integrator can do, see https://www.edaboard.com/threads/157451/#post669003