The precision of a high-resolution successive-approximation ADC depends on the accuracy, stability, and drive capability of its voltage reference. The reference sees a dynamic load, so it must be able to handle time- and throughput-dependent currents. The best performance can usually be achieved with an external reference, so this article looks at the challenges and design requirements.
Learn more in Voltage Reference Design for Precision Successive-Approximation ADCs as published in the June 2013 issue of Analog Dialogue.
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