Overview of Structure Design and Development of Analog to Digital Converter

The article summarizes the development of analog-to-digital converters (ADCs) based on existing literature and data research. ADC plays a crucial role in many fields due to its analog-to-digital conversion function, but ADC has always been a bottleneck field in China, so it is important to develop ADC vigorously. This article first introduces three mainstream ADC architectures: Flash ADC, ADC, and SAR ADC. Next, it compares the gap in ADC development between China and foreign countries, and the research results show that there are significant gaps between China and foreign countries in three aspects. In terms of high-speed, most international ADCs use hybrid architectures, and many employ time-interleaving (TI) technology, which is scarcely used in China. In terms of high precision, domestic technologies such as noise shaping are often used to process noise and improve accuracy, while foreign methods are more varied. For low power consumption, most domestic and foreign improvements are based on SAR ADC. Finally, the future development direction of ADC is discussed, and new ADCs, mainly hybrid architecture ADCs and new architecture ADCs, are expected to play a pivotal role in advancing the field.