GAAS TRICKLE TRANSISTOR DYNAMIC LOGIC

A GaAs dynamic logic gate is proposed which uses a trickle transistor to compensate for leakage from the precharged node. This trickle transistor dynamic logic (TTDL) circuit is configured as a domino logic gate and a differential cascode voltage switch logic (CVSL) gate. Delay chains were implemented in a 1-mu-m GaAs E/D process in order to obtain an experimental characterization of these gates. In addition, the TTDL gates were used to implement a 4-b carry-lookahead adder. The adder has a critical delay of 0.8 ns and a power dissipation of 130 mW.