A High-Speed Precision-Controllable Approximate 16 bit Multiplier

Abstract

Multiplication for many error-tolerant applications is a crucial foundational feature. Approximate multiplication is regarded as an effective strategy against efficiency and precision to trade off power. This paper proposes a precision-controlled multiplier whose final product is generated by a transportable adder.The suggested scheme could dynamically choose the duration of the carry propagation in order to flexibly meet the requirements for accuracy. The suggested tree compressor approximates the multiplier's partial product structure. Using the carry mask able adder and the compressor, a multiplier (8X8) model is simulated using Xilinx ISE. The Delay of precision control multiplier is reduced by 13.6% when compared to existing techniques.