Is there any instrumentation amplifier which has same spec or better to AD624 (mil grade) but with SMT packaging?
There are over 15 specs in the spec table. When you say "same spec or better...", which one(s)
are important to you?
Does it have to run on +/-15V, +/-5V, ground and 3.3V??
Is 1 MHz required or would 10 kHz be o.k.?
Is supply current critical?
Does it have to be pin strapped or would digital programming from a microprocessor work?
You need to give us more detail about what you need.