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OPA547: Non-Inverting amp output voltage swing versus power supply question

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Part Number:OPA547

Hello! 

I am trying to built a voltage amp wiht +/- power supply(+/-15V). According to data sheet output voltage can swing up to V+ -1.92V, V- +1.3V, ideally if my feedback resistor setup gain is hight enough , I should be able to obtian a +/- 13Vpp output. But result is always limited to less than half of power supply rail.

Why is this happening ? my set up is according to Figure 1. "Basic Circuit Connections" from OPA547 data sheet.


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