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(AD8220)Can you tell me the absolute accuracy of R1 & R2?

Question asked by donadona999s on Aug 8, 2016
Latest reply on Aug 23, 2016 by donadona999s


Hi !

 

I have a question about AD8220.

Datasheet(P20) says that

"The AD8220 defaults to G = 1 when no gain resistor is used.

Gain accuracy is determined by the absolute tolerance of RG. "

 

Q1)

Does this means R1 & R2 accuracy is small enough so

we don't have to think about the internal resister accuracy?

 

Q2)

Can you tell me the absolute accuracy of R1 & R2?

I want to know this because to think about the gain error for the Instrument-Amp

I think R1 & R2 value is very important.

Is there any specification about R1 &  R2?

Is this the resister specification?

 

Best regards.

Kawa

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