Each channel has two inputs (VA1 and VA2 or VB1 and 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。