求教TI工程师,我用ADS1274+THS4521做采集,采用下图所示电路:
在没有接入任何模拟输入信号的情况下,测量THS4521输入端VIN+与地之间的电压为2.5V,VIN-与地之间的电压也为2.5V,输出端AINN1和AINP1之间的差分电压为0V,请问这是正常的吗?
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