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.
分享ADI中文参考电路好资料，欢迎下载交流_01
如题，灰常实用的资料。
第一册在这里下载：【ADI实验室电路合集】第1册PDF下载：http://ezchina.analog.com/thread/6847