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INA128输入能否浮空?

Expert 1550 points

能否不接输入信号?

没有输入信号时,输出电压超过ADC的耐压,请问这个要怎么处理?

用函数发生器输入正弦波电压信号,输出波形毛刺。如果运放-IN接GND,这个毛刺就会消失。即把差分变成单端输入,波形就没有毛刺,在差分输入的时候有毛刺,请问这是什么原因?