Hi,

Am building an heart sound amplifier. Currently am confused between the following OPAMPs

1. OPA2314
2. OPA2132

While the former is known for low-noise applications the latter is high precision and has a very high CMRR.

I need all these qualities in the amplifier. I have simulation-tested both the OPAMP on Proteus-7 and both seem to give a good performance under the simulation.

Next stage is to fabricate the circuit and I want to be dead sure of which OPAMP to go ahead with.

 

Are those op amps in smd ?