Precision current sensing in a 1.8 mm² footprint
Its 2 µV input offset voltage and 500 pA input bias current allow accurate measurement of millivolt-level drops across shunt resistors, even at low load currents. The rail-to-rail output and 20 kHz bandwidth suit it for DC/DC converter feedback, battery monitoring, and motor-phase current sensing in industrial and automotive environments rated -40°C to 125°C.
No separate bias rail is needed — the amplifier runs directly from the same supply as the ADC or microcontroller it feeds, simplifying the power tree.
2 µV offset — the spec that sets the shunt value
With a 2 µV maximum input offset, the error contribution at a 10 mV full-scale shunt drop is 0.02%. This allows the designer to use a smaller shunt resistor (lower power dissipation) while maintaining measurement accuracy.
Package and mounting — 10-UQFN (1.8x1.4 mm)
Housed in a 10-UFQFN package with a 1.8 mm x 1.4 mm body, this part is intended for space-constrained PCBs. Surface-mount assembly is standard; the small footprint requires careful solder-paste stencil design and a reflow profile suited to the UFQFN land pattern. The supplier device package is 10-UQFN (1.8x1.4).