最近使用PGA113做设计,它有两个电源引脚,一个AVDD,一个DVDD,我将DVDD连接3.3V,AVDD连接5v,根据数据手册介绍,输入电平应该由AVCC决定,即最大输出电压应该是5V,但是当给通道1加入4.096V的电压时,输出饱和在DVDD的3.3V电压上,难道输出最大电压是由DVDD决定的吗?另外PGA113能用TINA仿真吗?
希望得到解答,谢谢。
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