一直很担心当外部电压超过3V或者低于0V时会把DSP28335的IO口击穿，毕竟实际中电压电流传感器采集到并作AD转换输入DSP的波形的尖峰毛刺比较多，由于担心漂移非线性的因素也没在传感器输出端加射极跟随器和限幅电路，只用了一个3V左右的普通稳压二极管，28335的ADC采样口的耐受能力怎么样？这方面大家有什么经验？有因为传感器出来的尖峰把DSP采样口击穿的情况吗？
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