A Survey on Multiply Accumulate Unit

In the most of the Digital Signal Processing (DSP) applications, the fundamental operations usually involve multiplications and accumulations. Multiplication is the arithmetic operation in which a processor requires most of its time as well as hardware resources among all other arithmetic operations like addition and subtraction. To attain a high-performance DSP application for real time signal processing applications, efficient Multiply Accumulate Unit (MAC) is always a mainstay. In the last few years, the main focus of MAC design is to boost its speed. This is because speed and throughput rate are always the crucial parameters of DSP systems. In this paper, a survey is done for different kind of MAC unit with different multipliers and adders where, multipliers are used to create partial products while adders to accumulate these partial products. This study reviews various MAC units designed until now with high speed and low power consumption.