I. Introduction
Driving large capacitive loads in an energy efficient fashion is a major challenge in the design of high speed integrated circuits. Several fast drivers for large capacitive loads have been reported [1]–[16]. One way to improve energy efficiency is the use of low supply voltage [1]–[3]. However, inevitably this results in performance loss. To regain the performance loss in the low-voltage driver circuits, bootstrap technique has been employed [4]–[8]. Further, to improve energy efficiency of driver circuits with large capacitive loads, adiabatic technique has been used [9], [10]. Combination of bootstrap and adiabatic techniques has been reported in [11]–[13].