This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

如何提供一个噪声较小的参考电压

Other Parts Discussed in Thread: ATL431

目的:用电桥采集毫伏级电压信号,仪表放大器需要一个1.8V的基准电压

要求:不能有太多的噪声(现在用的稳压芯片有几十毫伏 的噪声)

解决方案:改用串联电压基准

问题:1. 电压基准的方案能否满足要求,会不会还有那么大的噪声?

2. 为何稳压芯片的datasheet中,output noise是uV级别,实际却有几十毫伏这么大?