the output of Lm358 is 3.6V instead of 5V

[qamar.nust]

the output of Lm358

Hi everybody,
I am designing a light sensor in which i am using an op-amp(Lm-358). What I have studied about LM-358 is that when there is more voltage at non-inverting end than at the inverting end then at the output we get the maximum voltage. But in my case what i get is 3.6V instead of 5V.What should I do??
any suggestions????

 

[Tahmid]

the output of Lm358

Yes, there is a drop in the output voltage of an opamp (usually 1.4v), that's why you get 3.6v instead of 5. If you supplied 9v, 7.6v and if 12v, then 10.6v is what you'll get.

 

[penrico]

Re: the output of Lm358

You can put a transistor in the output of LM358 with a pullup to 5V, then you can get 0-5v levels.