反相器标准单元设计

单MOS管的寄生参数提取 在/home/IC/Documents/jingying/CUMEC_PDK/CUMEC013_PDK_V0p5_Release_20220615/CUMEC130_PDK_OA_V0p5_20220615目录下进行本次设计。 建立反相器版图cell,p管为p1p5_lvs_sct长宽为1um*6um,n管为n1p5_lvs_sct长宽为1um*2um。根据模拟版图画反相 ... 阅读更多

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