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LT6656:Voltage Variation while doing ADC Measurement

Hi ADI Team,

We are using LT6656 to generate a reference voltage. At some instance we do want to measure it. Our assumption is that the voltage shall dip when we try to measure as this is given direcly to the ADC.

Our requirement is as follows:-

Measurement every 2msec

ADC 12bit

Is it possible to give an equation depending on ADC current on what shall be the change in vref when we measure?