An Introduction to High Sample Rate Nyquist Analog-to-Digital Converters

Increasingly wider band analog signals found in multiple information and communication technology applications, requiring real-time digital signal processing, demand analog-to-digital converters with ever higher sample rate. Several innovative techniques, from the circuit level, to architecture and algorithms, have enabled remarkable breakthroughs in a relatively short span of time. This overview article aims to introduce this topic and to point to some of the most notable results, while also highlighting open problems and engineering trends.