A New Design for 7:2 Compressors

High order compressors play a specific role in realizing high speed multipliers. By increasing the demand for fast multiplication process, high order compressors have attracted many researchers to this field. In this paper a new implementation for 7:2 compressors, based on the conventional architecture, is proposed. According to the results, the design presented achieves a remarkable improvement in terms of speed (especially in low voltages) and power consumption over the best counterpart. This accomplishment is the direct result of shortening the critical delay path in the proposed circuit design. As the simulation results demonstrate, the structure presented here has improved the power consumption from minimum 0.07% (at supply voltage = 3.5 volt) through maximum 11% (at 1.2 volt), and the speed of the circuit from minimum 19% (at 3.5 volt) through maximum 23% (at 1.2 volt). HSPICE is the circuit simulator used, and the technology being used for simulations is 0.25 mum technology.