This paper presents a novel energy efficient logic called Charge Sharing Improved Pass Gate Adiabatic Logic (CSIPGL) operating using four phase power clock sources. The CSIPGL based circuit is capable of operating through a wider range of frequency from 100MHz to 1GHz. CSIPGL logic has been designed using UMC 90nm technology model files and are simulated using Cadence® Virtuoso EDA tools. Efficiency of CSIPGL circuit is validated by comparing it against CSSAL, SQAL, SyAL, adiabatic logic circuits based on single charge sharing transistor [14] and EE-SPFAL circuit designs. Power consumption of AND/NAND and XOR/XNOR sub modules used in the design of 4-bit Carry Lookahead Adder circuits (CLA) are compared. 4-bit CLA is taken as a benchmark circuit to validate the efficiency of the proposed CSCPAL circuit.

Dynamic logic circuits are preferred over static logic circuits for their increased speed performance and lower power consumption. However, they are found prone to false evaluation while cascading multiple stages of dynamic logic circuits. To overcome this problem, the domino logic circuits were proposed by researchers. However, they offer reduced noise margins due to increased leakage current and charge sharing problems. In this paper, Manchester Carry Chain Adder design is explored for use with domino logic and comparison of various domino logic topologies intended for improved noise immunity and reduced leakage current against the proposed structure have been carried out. Wide fan-in gates and 8-bit Manchester Carry Chain Adder (MCC) based on various high speed domino logic circuit topologies have been designed using Cadence® using 180nm technology library from TSMC. Design of 8-bit OR gate, using High Speed Domino (HSD) topology consumes 10.8% lower power in comparison with Controlled-Current Comparison-based domino logic (C3D) topology. Furthermore, it is observed that an 8-bit Manchester Carry Chain adder using HSD topology is 5.027 times faster than C3D topology and the leakage power consumption is also reduced.