The input bias current is typically 0.5 pA, making it suitable for high-impedance sensor interfaces.
Supply range and quiescent current — the battery-life decision
The 2.1 V minimum supply means this part runs directly from a single Li-ion cell down to its end-of-discharge voltage, and the 5.5 V maximum covers 5 V ±10% rails without a secondary regulator. If the design needs a faster slew rate for a higher-frequency path, the 0.5 V/µs figure is the constraint: large-signal bandwidth is limited, so this part fits DC or low-frequency conditioning, not audio line drivers or fast ADC buffers.