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Yes. The title "instrumentation" applied to these operational amplifiers indicates that they have been optimized for accuracy at low frequencies. This includes high CMRR, high input impedance with low bias current, low offset voltage.
Sometimes three of them are included on the same IC so that special circuit configurations can be used to mitigate the CMRR reduction caused by real world resistors not matching absolutely or over temperature.
Here is a brief note on a typical configuration of an instrumentation amplifier:
**broken link removed**
As you can see the output stage is not different from a standard opamp, so, as Flatulent mantioned before, all circuit is analog.
Regards,
IanP
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