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模拟开关必须要跟ADC一样放在模拟地与数字地的分割处吗

设计的系统中需要用到模拟开关TA5A3160,需要数字信号控制来决定通道的开关,那么为了减少对模拟信号的干扰需要把该芯片像ADC一样放在模拟地与数字地的分割处吗,谢谢。