طراحی و مدل سازی مبدل های آنالوگ به دیجیتال سازگار با دمای اتاق به کمک نانوترانزیستورهای تک الکترونی با جزیره کوانتوم نقطه ای نیمه هادی

In this article, the design and modeling details of room-temperature analog-to-digital converter (ADC) based on silicon quantum-dot (QD) single-electron transistors (SETs) is presented. In contrast to the conventional metal quantum dots, the use of silicon QDs in the scales of few nano-meters enhances the device operation and makes stable the Coulomb blockade and Coulomb oscillation regimes at room temperature. Nano-scale silicon QD-based SETs are also compatible with CMOS fabrication steps and can be integrated along with CMOS circuits on a same substrate. The proposed ADC in this article benefits from stable Coulomb oscillations of silicon QD-based SETs at room temperature. A 3-bit 5-GS/s prototype of this ADC contains three complementary SET pairs and four capacitors in the form of capacitor divider. Simulation results based on Monte-Carlo SIMON simulator demonstrates reliable static and dynamic performance at room temperature.