Its 390 V/µs slew rate and 36 MHz -3 dB bandwidth let it handle fast transients without slewing into distortion, which matters when you're feeding a 10-bit or 12-bit SAR ADC running at several MSPS. The 250 µA supply current is surprisingly low for this speed class — that combination is what makes it a candidate for battery-powered instrumentation where every milliwatt counts.
It's a current-production part, available through independent distribution.