An analog cell and its applications in analog signal processing

Abstract

SUMMARYThis paper presents a straightforward current-mode CMOS squarer circuit. The proposed circuit exploits the square-law characteristic of MOS transistor in saturation region. The squarer circuit is then used to implement multiplier and exponential functions. To demonstrate the method, circuits are designed in 0.35 m CMOS process, using single 3.3 V supply. HSPICE simulations, with level 49 model parameters, confirm the operation of the proposed CMOS circuits.