I have been having trouble choosing an appropriate op amp package that meets the criteria stated in the tittle of this thread. Most of the op amps recommended in the medical applications section of this website are SO packages and too small to use in prototyping breadboard. Any suggestions or advice on choosing a particular model ? The functions required are for the Right leg driver and filtering of the ECG. I already have an instrumentation amplifier
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.