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OPA1644:通道之间的串扰问题

Part Number: OPA1644

实测发现A通道的输出会耦合到B通道中。

这是A通道的输出波形图; 芯片供电为正负4.5V

其中输入的信号源为频率1Hz,幅度为1V的波形,毛刺来自寄生电容C

这是B通道的输出端测量的波形