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PGA281: 我想将两片PGA281级联,达到多级放大的功能,是否可行

Part Number: PGA281
Other Parts Discussed in Thread: OPA205

我原有的电路使用的前级是*1与OPA205放大*100的两个信号通道选择,供后级PGA281再次放大;

但在实际使用中发现前级信号使OPA205饱和输出的时候,会影响到原有的*1信号,导致信号失真;

因此我现在想将电路改为两片PGA281级联,前后级都由PGA281进行差分放大是否可行?或者是否有什么替代解决方案?

谢谢