Current sense amplifier with 3 µV offset and wide supply range
Its 2 V/µs slew rate supports fast overcurrent detection in motor drives, solenoid control, and power-management loops. The 2.7 V to 20 V supply span lets it run off common rails from 3.3 V logic supplies up to 24 V industrial buses without an extra regulator.
What the 3 µV offset and 680 µA supply mean for your BOM
A 3 µV input offset lets the INA2290A2IDGKR resolve tens of milliamps through a 1 mΩ shunt, which keeps shunt power dissipation low and board area small. The 680 µA supply current is low enough for always-on current monitoring in battery-powered equipment — a 24/7 IoT node drawing 680 µA from the sense amplifier alone is acceptable in a system with a 500 mAh battery. The 2 V/µs slew rate means the output settles within a few microseconds after a current step, fast enough for cycle-by-cycle overcurrent limiting in a 100 kHz switching regulator.
Package and mounting: 8-VSSOP with Tape & Reel options
Surface-mount assembly with standard reflow profiles applies; MSL level should be verified from the latest TI packaging data.
There is no announced last-time-buy or end-of-life notice, making it suitable for design-in on new production builds. ROHS3 compliance is confirmed, so it meets EU and global material restrictions without exemption tracking.