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OPA4330AIDR质量问题

各位大佬:左边为旧的芯片,右边为新的芯片,旧的芯片的丝印为激光雕刻,新的芯片丝印为打印,LOGO有区别。。

测量板子在运放输入端,没有输入情况下,新的芯片运放输出端有65mv左右的电压,老的芯片只有2mV左右。新的芯片是在深圳采购,还请判断是不是假货?