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OPA2156发烫严重?

Other Parts Discussed in Thread: OPA2156

您好:

用OPA2156对信号进行放大,输入电压±15V,OPA2156电路的前一级是ADI的ADA4625输出的Vpp=4V的正弦波信号。其他电路如下图所示。现在感觉OPA2156这个芯片发烫严重(没有信号输入以及输出没有负载),初步估算功耗为0.5W以上,请问这种情况正常不,如果不正常,请问这个电路设计可能哪里出现了问题,有什么改进的办法,多谢您的解答!