Obviously, the output resistance has also been recognized at Analog Devices. It would have been ideal to resolve the node at the output of the opamp so that the feedback resistors could be contacted externally. However, this would have meant changing the pinout. Instead, the output stage is now connected to the bondpad via a relatively large metal surface. The connection to the feedback resistors is made via a long contact between the two metal layers. This contact is located as close as possible to the bondpad.
There is still one square worth of resistance outside the loop in addition to the whole bondwire.
Most references have no force/sense pins, but what they do is run separate force/sense bondwires to the output pin. Several types like LT1027 or MAX6250 are able to guarantee <10mΩ output resistance. AD's own AD587 uses this technique and guarantees <100mΩ.
The ADR1001 doesn't even have a load regulation spec in 10V mode...
You are right, two bondpads and bondwires to the output pin/pad would have been a small impact solution for the resistance problem.
I think ADI had not considered the ADR1001 for the 10V output mode seriously. So they did not test this mode much and let the "1R7" bug there (I identified here in DEC2022). Also the output resistance I measured in the 5V mode at that time (
see the post) was around 8m\$\Omega\$, thus 5V mode was ok..
Anyhow, the grounding scheme and the issue with the output divider (and perhaps other issues people will find) is something they will deal with in the future, my bet..
PS: there are 3 "free" pins ADI my utilize in the future revisions - the one you get in my 1002 version, the "power-good" one you do not need, and the "NC" pin wired to the internal temperature sensor you do not need..