the unity-gain frequency is also called the gain-bandwidth product. Most general-purpose op amps can be used at any closed-loop gain. But this flexibility comes at a price: the unity-gain ...
Despite the monolithic op amp being older than SPICE simulators, comprehensive op-amp SPICE modeling left a lot to be desired ...
Looking at the circuit diagram it follows the classic op-amp with a long-tailed pair of NPN transistors driving a PNP gain stage and finally a complimentary emitter follower as an output buffer.