ASIC Design of Approximate Booth Multiplier

Approximate computing or Inexact computing is a methodology designed to achieve low power, high performance multipliers and also reduces the circuit complexity by relaxing the requirement of strict accuracy. Multipliers contribute to a lot of delay and consumes high power due to increased number of switching operations. With the advancement of technology, the demand for high speed processors and thus the demand for energy- efficient arithmetic units has increased. In this brief, we present the design of approximate booth multipliers based on approximate radix 4 booth encoding algorithms and a regular partial product array.