Each channel has two inputs (VA1 & VA2 or VB1 & VB2) that can be sampled and converted simultaneously thus preserving the relative phase information of the signals on both analog inputs.

• 每个通道的两个输入（VA1与VA2或VB1与VB2）可同时进行采样和转换，从而保留这两个模拟输入上的信号相对相位信息。