What does the ADC SNR mean?

I hear again and again that an ADC’s ideal SNR is 6.02N+1.76 dB (excluding delta-sigma converters). At the beginning of my career, I had to take this scenario at face value, because there were a lot o ... 阅读更多

非制冷读出电路关键问题汇总

1.Pipeline ADC校准 高速高精度流水线ADC是模拟集成电路的重要组成部分。由于制造工艺的原因,ADC中的采样电容宗师存在不匹配的问题,采样电容的不匹配会造成ADC的线性度变差,在频谱上表现为无杂散动态范围(SFDR,Spurious Free Dynamic range)变差。 调高SFDR的校准方法有动态电容匹配技术(DEM,dynamic element matching)技术,抖 ... 阅读更多