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Use of TL431 for voltage reference of AD7683

Question asked by gigarashi on Jan 12, 2017
Latest reply on Jan 12, 2017 by harryh

Hi,

 

I am interesting to use TL431 voltage reference to generate 5V to be used in Vref input of AD7683.

This voltage reference has low noise voltage enough for AD7683?

I am asking because many voltage reference devices inform noise voltage parameter, normally in a specific range of frequency and in micro volts.

For example, ADR435 device, from Analog: Low noise (0.1 Hz to 10.0 Hz): 3.5 µV p-p @ 2.5 V output.

Unfortunatelly, this information does not informed in the TL431 datasheet. I tried TI, OnSemi, etc...

 

Regards,

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