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Abstract
This paper proposes a novel 4 gate 4-2 approximate compressor which is complementary with other compressors from earlier work and constructs a hybrid multiplier based on the compressors, a constant approximation, and error correction AND gate. According to the simulation results, the proposed hybrid approximate multiplier has excellent error-electrical performance tradeoff and reduces the power-delay-area product (PDAP) by 66% with an MRED of 2.5% when compared to the exact multiplier.