The MAX4372HESA+ from Analog Devices is a single-channel current-sense amplifier in an 8-SOIC surface-mount package. It monitors current by amplifying the voltage across an external shunt resistor, outputting a voltage proportional to the load current. Key specs include a 110 kHz bandwidth, 30 µA supply current, and a supply span from 2.7 V to 28 V, making it suitable for low-side or high-side sensing in power supplies, battery chargers, and motor control loops operating over the -40°C to 85°C industrial temperature range.
Supply span and quiescent draw
The 2.7 V to 28 V supply span covers common rails without an extra regulator. The 30 µA supply current is the quiescent draw of the amplifier itself.
Bandwidth and input offset
110 kHz bandwidth covers the switching frequencies of most DC-DC converters. The 300 µV input offset voltage sets the floor on measurable current.
Package and mounting
Supplied in a tube of 8-SOIC (0.154", 3.90 mm width) surface-mount packages. The 8-SOIC footprint is standard for current-sense amplifiers; rework and replacement are straightforward with hot-air or soldering-iron tools. No special pad pattern beyond the SOIC-8 land.
Lifecycle and sourcing
Marked Active on the product status, so no end-of-life risk for new designs. ROHS3 compliant. Sourced through independent distribution; quoted to order against an RFQ.