ANALOG CIRCUIT DESIGN USING VCII+

Abstract

Analog signal processing involves manipulating continuous signals that vary in amplitude over time. This contrasts with digital signal processing, which deals with discrete signals shown by binary numbers. In analog processing, signals are manipulated using analog circuits, which can include components like resistors, capacitors, and operational amplifiers. Applications of analog signal processing can be found in various fields like audio processing, telecommunications, control systems, and instrumentation. This study investigates the design and implementation of analog circuits employing the second generation voltage conveyor (VCII+) as the core active building block. VCII+’s signify a notable advancement in analog signal processing, offering superior linearity, enhanced bandwidth, and improved power efficiency compared to conventional active elements such as operational amplifiers (op-amps). The study encompasses a comprehensive study of various analog circuit topologies, emphasizing the VCII+'s versatility and superior performance metrics. The proposed analog circuits are meticulously validated through simulations in Cadence PSpice, implemented in CMOS TSMC 0.18μm technology. The simulated characteristics closely align with the theoretical results. Furthermore, transient analysis, Monte Carlo simulations, temperature variation tests, and output noise evaluations are conducted to demonstrate the robustness and practical viability of the proposed analog circuit design.