- Is the spice model of the OP27 include thermal deviation of offset voltage? Is the noise is implemented?
- Is the spice model of the OP27S exist?
My Orcad simulation (OpAmp buffer positive input grounded) doesn't show a 40µV variation
(min) with a 100°C variation as specified in the datasheet (0.4µV/°C).
I only see a 100 µV offset with a variation of 40fV between -20 and 80°C.
Furthermore, there is no trim pins: as specified in the datasheet, Rp needs to
be at least 8000 Ohm. Is it normal?