The swift advancement of the Internet of Things(IoT)and the subsequent proliferation of smart devices have precipitated an exponential surge in demand for integrated analog-to-digital converters(ADCs)that exhibit low ...The swift advancement of the Internet of Things(IoT)and the subsequent proliferation of smart devices have precipitated an exponential surge in demand for integrated analog-to-digital converters(ADCs)that exhibit low power consumption and high stability across a broad spectrum of applications.Despite the notable progress witnessed in conventional silicon-based ADCs,they continue to confront constraints pertaining to miniaturization,wearability,and power efficiency—critical parameters for the effective functionality of IoT devices.In recent years,two dimensional semiconductors(2DSCs)have attracted notable interest in low-power circuitry and flexible electronics due to their intrinsically atomic-scale thickness and exceptional electrical properties.However,integrating 2DSCs into analog circuits poses substantial challenges,especially in the context of complex mixed-signal circuits.The divergent design requirements for digital and analog circuits also complicate the achievement of high-performance ADCs on a single chip.This paper presents an innovative 3-bit Flash ADC circuit utilizing 2DSCs.Through the synergistic optimization of materials,fabrication processes,and circuit design,the nonlinearity of the ADC is significantly reduced,resulting in a differential nonlinearity(DNL)of 0.072 least significant bit(LSB),an integral nonlinearity(INL)of 0.128 LSB,and a remarkably low power consumption of only 3.36μW.展开更多
基金supported by the National Key Research and Development Program(2021YFA1200500)the Innovation Program of Shanghai Municipal Education Commission(2021-01-07-00-07-E00077)+2 种基金the Science and Technology Commission of Shanghai Municipality(23JC1401100)the Shanghai Pilot Program for Basic Research-Fudan University 21TQ1400100(23TQ008)the New Cornerstone Science Foundation through the XPLORER PRIZE.
文摘The swift advancement of the Internet of Things(IoT)and the subsequent proliferation of smart devices have precipitated an exponential surge in demand for integrated analog-to-digital converters(ADCs)that exhibit low power consumption and high stability across a broad spectrum of applications.Despite the notable progress witnessed in conventional silicon-based ADCs,they continue to confront constraints pertaining to miniaturization,wearability,and power efficiency—critical parameters for the effective functionality of IoT devices.In recent years,two dimensional semiconductors(2DSCs)have attracted notable interest in low-power circuitry and flexible electronics due to their intrinsically atomic-scale thickness and exceptional electrical properties.However,integrating 2DSCs into analog circuits poses substantial challenges,especially in the context of complex mixed-signal circuits.The divergent design requirements for digital and analog circuits also complicate the achievement of high-performance ADCs on a single chip.This paper presents an innovative 3-bit Flash ADC circuit utilizing 2DSCs.Through the synergistic optimization of materials,fabrication processes,and circuit design,the nonlinearity of the ADC is significantly reduced,resulting in a differential nonlinearity(DNL)of 0.072 least significant bit(LSB),an integral nonlinearity(INL)of 0.128 LSB,and a remarkably low power consumption of only 3.36μW.
