Just about to buy a AD826 for my tc-7520, can anyone confirm that this is the right one

http://radionics.rs-online.com/web/s...duct&R=5228130

OR THIS

http://ie.farnell.com/analog-devices...826/dp/1438583

Also , i can just drop this in without having to change anything else , its just a simple swap replacement for whatever opamp is in there ?

Thanks