Op amps are OPERATIONAL AMPLIFIER types of amplifier on the chip. Instrumentation amplifier is delivered in a Tube case. The number of terminations approaches 10. Please take in mind that op amp should be run at 5V. Instrumentation amplifier is a part of Operational Amplifier.
MAX9939AUB/V+ Features
supply voltage of 5V
MAX9939AUB/V+ Applications
There are a lot of Maxim Integrated MAX9939AUB/V+ Instrumentational OP Amps applications.