使用ADS8664时,模拟量信号输入为霍尔输出的电压信号,满量程输出为4V,进入8664前,是否还需要加跟随器?
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霍尔输出的电压信号,满量程输出为4V,进入8664前,是否还需要加跟随器?
知道霍尔传感器输出阻抗吗?ADS8664的输入阻抗典型值为1Mohm,要看下是否需要通过加跟随器来改变阻抗,保证阻抗匹配。