Precision current sensing in a TSOT-23-8 footprint
The INA190A4IDDFR: Its 3 µV input offset voltage and 500 pA input bias current make it suitable for low-side or high-side monitoring where shunt voltage drops are in the millivolt range.
What the 3 µV offset and 48 µA supply mean for your BOM
The 3 µV input offset means the amplifier introduces negligible error at the shunt. Combined with the 48 µA supply current, this part fits designs where the sense amplifier runs continuously on a battery.
Active lifecycle and sourcing note
For BOM planning, the Zero-Drift series includes multiple gain options (A1 through A5) sharing the same TSOT-23-8 footprint, so a gain change during development does not require a board spin.