op-amp

[t.man]

does op-amp have a maximum voltage it can output? i.e if we take 741, for example, does it have a reference voltage(maximum) for its output?

 

[Brevor]

741 Maximum output

Yes it does,
Offhand I dont know what it is, but look at the data sheet under maximum operating conditions. It will be about the same as the maximum operating voltage.

 

[Mikebits]

Look at the data sheet output voltage swing spec. For the National LM741 the swing look like 4 volts less than Vsupply for 10k load and 5v less than supply for 2k load.
Always consult data sheet as all op amps are not created equal.

 

[Grossel]

Like mentioned before. It depends of the specific opamp you're using. They are different. Read a datasheet that contains a simple schematics of the output stage, and you'll probably see what limitations it have.