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DAC8551连接XTR111后烧坏

Other Parts Discussed in Thread: XTR111, DAC8551, OPA703

我使用推荐电路,在DAC8551后连接OPA703, 再连接XTR111,电路图如下所示:

其中,R15,R4不接,R7,R16短接。在将R16短接前,测量AD输出,正常。短接后,AD就没有输出了。再将R16断开,AD也没有输出。我的AD没用带有驱动能力的方式。请问,是不是AD的方式的问题,应该怎么解决?