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BUF634A: 器件经常失效,输入输出引脚未发现异常高压,怀疑输入限流电阻过小,如何选择输入限流电阻;

Part Number: BUF634A
Other Parts Discussed in Thread: BUF634

BUF634应用场景如上图所示,在应用过程中发现BUF634器件经常损坏,测量BUF634输入输出引脚未发现异常高压;目前BUF634输入引脚添加了50欧姆的限流电阻;

请帮忙评估导致BUF634损坏的原因有哪些;50欧姆的输入限流电阻是否足够,运放的输入限流电阻应该如何计算;