The 20-Bit DAC Is the Easiest Part of a 1-ppm-Accurate Precision Voltage Source

High precision applications require 18- and 20-bit, 1-ppm-accurate digital-to-analog converters, a performance level previously achieved only with cumbersome, expensive, and slow Kelvin-Varley dividers. Now, the 20-bit AD5971 DAC provides a cost-effective way to achieve 1-ppm linearity. Easy to use, it offers guaranteed specifications without requiring calibration or constant monitoring.