Hi,
I have a question about the offset voltage specification.
Vos is up +/-40uV when G=1/2 (or +/-80uV when G=2). From the datasheet, the upper part of the table is titled "OFFSET VOLTAGE (RTO)" but the specification in table says "Vos input offset voltage".
So, my doubt is: are these 40uV (or 80uV) present on output or on input?
Initially I thougth it was an output offset voltage, that should be equal to Vos_in*(1+6k/12k)=1.5*Vos_in for G=1/2 (or to Vos_in*(1+12k/6k)=3*Vos_in for G=2).
It was ok for me since, in accordance to datasheet, the formula gives for G=2 an output offset voltage that is twice that for G=1/2. If it is correct, negelcting bias currents, maximum Vos_in should be approximately 27uV (40uV/1.5 or 80uV/3).
But then I read "Vos input offset voltage" so I am a bit confused.
Thanks,
Massimo