Supply voltage range and deployment context
The MAX4081TAUA+T: The 4.5 V to 76 V supply span covers common industrial rails — 12 V, 24 V, 48 V — with headroom for transients up to the 76 V max. That means a single BOM line serves both a 24 V motor drive and a 48 V telecom rectifier without a separate regulator for the sense amp.
Bandwidth and supply current trade-off
150 kHz -3 dB bandwidth sets the upper frequency for accurate current measurement — fast enough to capture inductor ripple in a 500 kHz switching regulator or to detect overcurrent in under 7 µs. The 103 µA supply current keeps the quiescent draw low enough for always-on monitoring in battery-backed systems.
Rated -40°C to 125°C, so it handles under-hood automotive ambient and industrial enclosures without derating.
Sourcing and lifecycle posture
ROHS3 compliant.