Current sense amp for single-rail monitoring
With a 1.6 MHz -3dB bandwidth, it can track fast current transients in switching power supplies, motor drives, and solenoid loads — the sort of edge that a slower sense amp would low-pass into a flat reading. The 3 V to 28 V supply span means it runs directly off the rail it is monitoring, whether that is a 3.3 V core bus or a 24 V industrial supply, with no separate bias regulator needed.
Temperature range and operating environment
This is not a commercial-grade part that needs derating at the high end — it holds its specs across the range, which simplifies qualification in engine bay or factory-floor designs where ambient can hit 105°C and internal self-heating pushes the junction higher.
Package and mounting detail
Housed in a 5-lead SC-70-5 (SOT-353) package, the part takes up roughly 2 mm × 2 mm of board area. Surface-mount only, so a pick-and-place step and a reflow profile matching the small-body footprint are assumed. The SC-70-5 is a common package for current-sense amplifiers, making layout straightforward — just a shunt resistor, a decoupling cap, and the sense lines routed as a differential pair to the input pins.
Lifecycle and compliance
For dual-sourcing, look at other Maxim current-sense amps in the same SC-70-5 footprint — the MAX4073 family shares pin compatibility across gain options.