Design and Simulation of a High-Speed 16-Bit Successive Approximation Register ADC (SAR ADC) with Capacitive-DAC Implementation Using Verilog

This chapter focuses on the design and simulation of a high-speed 16-bit Successive Approximation Register (SAR) Analog-to-Digital Converter (ADC) with a capacitive-DAC implementation using Verilog. The article begins by introducing the importance of ADCs in various applications and the advantages of SAR ADCs over other types, such as Flash ADCs. It then delves into the architecture and operation of SAR ADCs, explaining the role of the capacitive-DAC (C-DAC) in converting digital signals into precise analog voltages. The design specifications and schematic of the 16-bit C-DAC are discussed in detail, highlighting the methods used to achieve accurate conversion and power efficiency. The integration process of the C-DAC into the SAR ADC architecture is also covered, including the use of Verilog for design and simulation. Performance verification techniques, such as behavioral simulation and the integration of ILA and VIO modules, are explored to ensure the SAR ADC meets design specifications. The article concludes with a comparison of various SAR ADCs, emphasizing the advantages of the 16-bit SAR ADC in terms of resolution, precision, and dynamic range. This chapter provides a comprehensive overview of the design, simulation, and verification of a high-speed 16-bit SAR ADC, making it a valuable resource for professionals seeking to understand and implement advanced ADC technologies.