Operational Amplifiers - Saturation

[PFuser1232]

I am an A level physics student. I have a doubt regarding the saturation of op-amps. For a circuit with a dual power supply, each supply has an emf V_S. My doubt is, why is the MAXIMUM magnitude of the output voltage V_S? Shouldn't it be V_S - (- V_S) = 2V_S? (Since the potential difference is the difference in potential between the two terminals).

 

[berkeman]

I am an A level physics student. I have a doubt regarding the saturation of op-amps. For a circuit with a dual power supply, each supply has an emf V_S. My doubt is, why is the MAXIMUM magnitude of the output voltage V_S? Shouldn't it be V_S - (- V_S) = 2V_S? (Since the potential difference is the difference in potential between the two terminals).

Please post a link to the datasheet and give us a pointer to the specification that you have the doubt about. That is the most efficient way to get your question answered.

 

[analogdesign]

As Berkeman suggests, it entirely depends on how the output voltage is defined for that specific op amp.