900 kHz current-sense amplifier with 3 µV offset — what it buys the error budget
The INA2290A3IDGKR: Its 900 kHz gain-bandwidth product supports fast transient detection, while the 3 µV input offset voltage keeps the zero-current error low enough that you don't lose measurement resolution at light loads. The 680 µA supply current is a reasonable draw for a continuous-monitoring node in an industrial or automotive module.
Stack the offset drift and gain error over that range when sizing the shunt — the 3 µV offset at 25°C is the starting point, not the worst case.