The fixed-width multiplier is attractive to many multimedia and digital signalprocessing systems which are desirable to maintain a fixed format and allow a little accuracy loss to output data. This brief includes a comparative study of different fixed-width Booth multipliers-PT(most accurate fixed width multiplier) and DT(least area requirement) fixed width multipliers with the Proposed accuracy-adjustment fixed-width Booth multipliers that compensates the truncation error using a multilevel

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... ditional probability (MLCP) estimator.To consider the trade-off between accuracy and area cost, the MLCPprovides varying column information to adjust the accuracy with respect to system requirements. Unlike previous conditional-probability methods, the proposed MLCP uses entire nonzero code, namely MLCP, to estimate the truncation error and achieve higher accuracy levels. And a comparative study of different fixed width multipliers based on MLCP using differentfast adders such as carry look ahead adder, Kogge -stone adder etc are also included. The design was modeled using Verilog, simulated and synthesized using Xilinx ISE 14.7.