Adding gain to INA134 ?

[00940]

Hi,

Is there any reason to avoid adding gain to an INA134 by adding 75K resistors in between pin 1 and ground and in between pin 5 and 6 ?

The alternative being to use a opa134 in receiver configuration with 22K and 100k resistors.

Thanks 🙂

 

[Samuel Groner]

The factory CMRR trim would be messed up.

Samuel

 

[00940]

I don't know where I got the notion that simply matching the external resistors would be ok... I see the problem now. 😱

Thanks for pointing it out.