Introduction -- Analog-to-Digital Conversion Fundamentals -- Architectural Considerations for High-Efficiency GHz-Range ADCs -- Ultrahigh-Speed High-Sensitivity Dynamic Comparator -- High-Speed Wide-Bandwidth Single-Channel SAR ADC -- High-Resolution Wide-Bandwidth Time-Interleaved RF ADC -- Ultra-Wideband Direct RF Receiver Analog Front End -- Conclusions, Contributions, and Future Work. .