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ADS1205: 问题如下:

Part Number: ADS1205

目前的问题: 1. ADS1205芯片上电后选用内部时钟后(CLKSEL=1),并且chA+接电源的的2.5V的电压,chA-接地,用逻辑分析仪显示CLKOUT的逻辑电平和OUTA的逻辑电平如下图:

现在的问题是输出端的疏密电平不随着电源电压变化,输出的值不对。