Title :
A dynamic four-bit carry lookahead adder circuit for complementary gallium arsenide (CGaAs) fabrication processes
Author :
Shehata, Khaled Ali ; Fouts, Douglas J. ; Michael, Sherif
Author_Institution :
Dept. of Electr. & Comput. Eng., Naval Postgraduate Sch., Monterey, CA, USA
Abstract :
The design and implementation of three, 4-bit carry lookahead adders using Complementary Gallium Arsenide (CGaAs) HIGFETs is presented, including static, pipelined static and dynamic versions. The designs are compared for speed, power consumption and layout area. The dynamic implementation operates at the highest speed (1.2 GHz) and consumes the best power (0.01 μW/MHz/gate).
Keywords :
III-V semiconductors; adders; carry logic; digital arithmetic; field effect logic circuits; gallium arsenide; 1.2 GHz; GaAs; HIGFETs; carry lookahead adder circuit; complementary GaAs fabrication processes; dynamic version; pipelined static version; Adders; Circuit noise; Circuit simulation; Clocks; Energy consumption; FETs; Fabrication; Gallium arsenide; Logic circuits; Noise reduction;
Conference_Titel :
Circuits and Systems, 1997. Proceedings of the 40th Midwest Symposium on
Print_ISBN :
0-7803-3694-1
DOI :
10.1109/MWSCAS.1997.662270
