If you want a low power low offset opamp in a DIP package, how about an OP193, which pulls 30uA and runs down to 1.7V
Have a look at the OP90 or the OP193, both available as DIP parts. I would also say that prototyping with SO parts really isn't that hard, and I gave up on DIP many years ago.
Share ADI Chinese reference circuit good information, welcome to download exchange _01 by onlookers on the road
Share ADI Chinese reference circuit good information, welcome to download exchange _01