【求助贴】关于ADC底板采样的热噪声分析

icdane

按照你的图，采样点的thd应该是等于你的sn让，因为只有采样噪声；转换时，你电阻噪声进来了，这时候的the+kt/c是你的中总噪声。你的电阻这里是理想的吗？（关闭了噪声的选项）？

icdane

上面描述也不完全准确 你试试把电阻拿走 接理想电压源

icdane

1. could be from the nonlinear cap from your swtich and the reset switch, since you are looking at SFDR, so charge injection, reset residue might be a concern.
2. is the swing lower? there is a cap divider there (CDAC vs Cpar)