ABSTRACT
This chapter introduces the traveling wave-based data conversion circuit techniques. It describes a noise-shaping data conversion technique using traveling wave oscillators. Pipeline analog-to-digital converters (ADCs) also offer high-speed operation by trading latency with speed. In order to decouple the conversion rate from the worst case comparator delay, high-speed data converters often employ time interleaving. In a classical high-speed digital-to-analog converter (DAC), a stream of digital data is sampled by a corresponding high-speed clock and converted to analog. Jitter, edge rate, and other nonidealities associated with a highspeed DAC sampling clock limit the performance in most of the cases. The binary-sized metal oxide semiconductor devices are controlled by the relatively lower speed digital baseband data, effectively modulating the power flowing to the matched antenna load. In the ADCs, timing intervals defining the sampling instances can be well defined through use of high-accuracy phases of evenly symmetric traveling wave technologies.
