DAC fine-tunes reference output

Analogue-to-digital converters (ADCs) and digital-to-analogue converters (DACs) need a stable reference voltage to accurately measure or generate analogue signals. This application note shows how to adjust any three-terminal voltage reference using a resistor, a current sink/source, and a buffer amplifier to dynamically calibrate the reference, fine-tune its output value, or generate a slightly different value.

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Originally published by Maxim Integrated at www.maximintegrated.com as "Digital-to-Analog Converter Fine-Tunes Reference Output".