New Methods Improving Static and Dynamic Performance of an 8-Bit/120-MHz A/D Converter

The step to full Nyquist operation of an 8-bit flash ADC with a sampling rate of up to 120 MHz, as reported in this paper, was achieved using new solutions for the improvement of linearity and for the compensation of signal delays. Together with a proper comparator circuit and a speed power optimized encoding structure, this led to excellent dynamic performance up to 60 MHz full scale analog signals at a power dissipation as low as 1.3 W.