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OPA549使用问题

Other Parts Discussed in Thread: OPA549

各位大侠,

我在使用OPA549做功放,±12V供电,输入正弦波1.7V想输出5V/1A,电路按照数据手册上画的,现在是一开机就电流没有输出,而且输出引脚是10V的直流电压,

E/S引脚悬空,这个不知道怎么回事?

还有一个疑问,数据手册上说TAB Connected TO V-,但是测了一下管子内部并没有连接在一起,是需要认为从外面连接么??急!谢谢各位了!