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AD8429 and gain error vs temperature

Question asked by ptsipil2 on Jan 25, 2017
Latest reply on Feb 7, 2017 by Emman.A

I am considering to use AD8429 instrumentation amplifier over a wider temperature range, and for high accuracy application. Unfortunately, the gain error vs. temperature specification is not  documented in very detail in the data sheet. It says that at >1 Gain, the error is -100 ppm max. Is the case regardless to gain value (as long as it is above 1)? I will be using a gain between 10 to 100, and I wonder if I keep the gain within some range, can I achieve a better temperature stability <25ppm/°C?

In this context, I also wonder what are typical values for the temperature dependency of gain (set at 10 to 100), and what is the statistical variance in this?

 

Many thanks in advance for any additional support,

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