This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

THS4521: THS4521输出偏移大

Part Number: THS4521

   TI的专家,您好!我在用贵司的THS4521时,遇到个现象,电路设计如上图所示(VCOM共模电压是2.5V),实际测试时,发现PA和PB间的电压差是125mV(PA=125.3mV,PB=0mV),但测试PC和PD间的电压差却是128mV(PA=2.453V,PD=2.581V),比预想值多了3mV,即使把后端都断开也是这个结果(断开R37和R45测量也是一样的现象),电阻都是用的0.1%精度的。请专家帮忙分析一下原因。谢谢!