275 kHz current sense amp in SOT-23-5
The MAX4372TEUK+T is a single-channel current sense amplifier from Analog Devices in a SOT-23-5 package — a footprint that fits tight power-rail monitoring points without consuming board area. Its 275 kHz -3 dB bandwidth means it tracks load transients and inrush events up to that frequency, so the downstream ADC or comparator sees the real current waveform, not a filtered average. Supply current is 30 µA typical — low enough to leave the part powered continuously on a battery rail without draining the cell between measurement cycles.
Operates from 2.7 V to 28 V supply span, so it monitors a 3.3 V core rail, a 5 V peripheral bus, or a 24 V industrial supply without a separate regulator. Input offset voltage is 300 µV max, and input bias current is 2 µA — these set the floor on measurable current through the sense resistor; for a 10 mΩ shunt, 300 µV offset corresponds to 30 mA of zero-current error.
Active production, SOT-23-5 package
RoHS3 compliant per the manufacturer's declaration — no restricted substances above the threshold, which clears EU and UKCA market entry without an exemption review.