Abstract
In digital electronics, adders are the most widely used circuits in order to perform fast arithmetic operations. Square root carry select adder is the fastest adder used in various digital processors. This paper presents the comparative analysis of different architectures of MCML square root carry select adders. Comparison with MCML RCA is also given. It is seen that modified MOS current mode logic (MCML) square root carry select adder (MSQ-CSA) has reduced power and increased speed. Therefore, it can be used instead of regular SQ-CSA and MCML ripple carry adder in order to perform high-speed and low-power operations. The simulation is performed in T-SPICE using 16 nm technology parameters. It is found that the proposed MCML SQ-CSA is efficient in terms of power and delay in comparison to other MCML adders.
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