A GaAs IEEE floating point standard single precision multiplier

This paper presents a GaAs IEEE floating point standard single precision multiplier. A modified carry save array is used in conjunction with Booth's algorithm to reduce the partial product addition and interconnection. A special rounding technique called Trailing-1's Predictor is used to speed up the final addition and rounding. The combination of the fast arithmetic architecture and compact layout style achieves 4 ns multiplication time with 3.5 W power dissipation at 75/spl deg/C giving 14 mW/MHz. The area is 2.43 mm by 3.77 mm (excluding pads) and uses 28,000 transistors to give a density of 3056 transistors/mm/sup 2/ for 0.8-/spl mu/m GaAs technology.<>