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AD9689 External Voltage Reference

Question asked by kiwikolby on Jun 5, 2018
Latest reply on Jun 8, 2018 by kiwikolby

I'm just wondering on these high speed ADC's (AD9689) it has an internal voltage reference but says you can use a "better" external voltage reference "to increase gain accuracy or improve thermal drift characteristics".  Is there any kind of guidance or quantification on the improvement or can you please describe how the improvement impacts the performance.