This document describes a low power 8-bit 5MS/s digital to analog converter (DAC) designed for use in successive approximation analog-to-digital converters (ADCs). The DAC starts the conversion process from the most significant bit instead of the least significant bit to provide the output more quickly for the ADC. The DAC samples a reference voltage once onto a capacitor and then transfers appropriate charge to the output capacitor based on each bit to generate the analog output voltage. The DAC consumes only 493.8 micro Watts of power, less than previous DAC designs, and achieves the 8-bit output resolution. Simulation results showed the DAC output increased appropriately for input bits of 1 and it dissipated the targeted