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OPA3S2859-EP: 相关问题咨询

Part Number: OPA3S2859-EP
Other Parts Discussed in Thread: OPA3S2859

前面是一级1000放大的跨阻电路,后续使用运放完成10倍,1倍,0.1倍增益切换, 最好的是用opa3s2859,因为它简化电路,可能干扰要小一些, 看看能不能用opa3s2859,实现10k欧姆,1k欧姆,100欧姆这种切换效果

如果使用了opa3s2859的24脚输入,第24引脚可作为普通运放输入端,反馈电阻接10k欧姆。此时SEL1为LOW,SEL0为LOW时,接入10k欧姆。这两个10k欧姆相当于并联吗?