Adiabatic circuits and standard CMOS logic are widely employed in Low power VLSI chips to achieve high system performance. The power saving of adiabatic circuit can reach more than 90% compared to conventional static CMOS logic. The clocking schemes and signal waveforms of adiabatic are different from those of standard CMOS circuits. This paper investigates the design approaches of low power interface circuits in terms of energy dissipation. Several low power interface circuits that convert signals between adiabatic logic and standard CMOS circuits are presented.