The datasheet specifies the offset voltage for the LMC6001A as follows:
Vs= 0V/+5V, Vcm=1.5V: max. 0.7mV @ 25°C,
Vs= 0V/+5V, Vcm=1.5V: max. 1mV @ the temperature extremes
Vs= +/-5V, Vcm=0V: max. 10mV @ 25°C,
Vs= +/-5V, Vcm=0V: max. 1.35mV @the temperature extremes
This looks inconsistent.
Is my assumption right, that it should be
Vs= +/-5V, Vcm=0V: max. 1mV @ 25°C, max. 1.35mV vs. Temperature
This inconsistency is in the sections for the "A" and "B" grade. For the "C" grade the numbers look like this is specified tighter than the "B" grade.