Research on A 16.01 FO4(1V), 26.49 Eu(1V) 4-bit Absolute-Value Detector Based on CMOS transistor

The integrated circuit industry is a strategic, basic and leading industry for national economic and social development. It is the core and foundation for cultivating and developing strategic emerging industries and promoting the deep integration of informatization and industrialization. It is also important to support adjusting economic development mode, adjusting the industrial structure and ensuring national information security. The development of the integrated circuit industry is not only the internal driving force for the development of the information technology industry and industrial transformation and upgrading, but also the external pressure of fierce market competition, which has become China's national strategy. In recent years, driven by the market and supported by policies, China's IC industry has developed rapidly, its overall strength has improved significantly, the gap between IC design and manufacturing capacity and the international advanced level has been narrowing, and the packaging and testing technology has gradually approached the international advanced level. However, the crackdown of the United States may have a negative impact on the development of China's domestic IC to a certain extent. Therefore, it is of great significance to improve the innovation ability of an integrated circuit to ensure national economic security. Based on this idea, a low-power absolute value detection circuit is designed. The circuit uses an absolute value circuit and comparison circuit to realize this function. A series of four-bit two-stage code is input through a four input port to compare with the previously set threshold value, so as to judge the symbol of the code, and then realize this function through the conversion of the original code and the complement code. The circuit can be widely used in the sampling and processing of AC and voltage data, which can greatly improve the accuracy of data.