Package and board-fit note for the SC-70-5
The INA290A1QDCKRQ1 is supplied in a 5-lead SC-70-5 package (also compatible with SOT-353 and 5-TSSOP footprints), with a surface-mount body suited for automated assembly. The small 2.0 mm × 2.1 mm footprint demands careful decoupling — a 0.1 µF ceramic close to the supply pin keeps the 370 µA quiescent current free of rail noise. Tape & Reel (TR) and Cut Tape (CT) options are both available from the distributor, covering prototype pick quantities and production reels alike.
What the key ratings mean for your shunt measurement
As a dedicated current-sense amplifier, the INA290A1QDCKRQ1 amplifies the voltage drop across a shunt resistor with a fixed gain — the 1.1 MHz gain-bandwidth product means it settles fast enough for DC and low-frequency load steps, but not for sub-microsecond current spikes. The 5 µV input offset translates to a 0.5% error on a 1 mV shunt drop, typical for precision monitoring.