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https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/701302/ads8902b-sampling-for-lowest-noise
我想测量振幅调制4V p-p 100kHz 正弦波的振幅、分辨率为18-20位。 我可以了
将其解调为2V p-p 整流正弦波、低通滤波器、放大并以200ksps 采样、或
2.在峰值、200ksps 时同步采样并进行数字解调
哪一项是更低的噪声？ 2) 2)更简单、不会出现1/f 噪声、但总噪声是否会更低？
谢谢！
