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Analog Devices MAX4080FASA+ — Analog & Data Acquisition

MAX4080FASA+ Current Sense Amplifier, 250 kHz, 8-SOIC

MPNMAX4080FASA+
End of Life

Analog Devices MAX4080FASA+, Current Sense Amplifier, 1 Circuit, 250 kHz -3dB Bandwidth, 4.5 V to 76 V Supply, 75 µA Supply Current, 8-SOIC Package, -40°C to 125°C, ROHS3 Compliant, Active.

$4.15Ref. price · indicative, final on quote
Analog Devices MAX4080FASA+ datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX4080FASA+ specifications
ParameterValue
MountingSurface Mount
Amplifier typeCurrent Sense
Voltage - input offset100 µV
Voltage - supply span4.5 V
Current - supply75µA
Current - input bias5 µA
Operating temperature-40°C ~ 125°C
-3db bandwidth250 kHz
PackageTube
Case8-SOIC (0.154\", 3.90mm Width)
Number of circuits1

Product details

The MAX4080FASA+ is a current-sense amplifier that operates from a 4.5 V to 76 V supply, with 250 kHz bandwidth and 75 µA supply current.

Bandwidth and input offset — measurement accuracy

The 250 kHz bandwidth captures current waveforms in switching converters. The 100 µV input offset and 5 µA input bias set the measurement floor.

The SOIC-8 footprint is widely used and easy to route; the device's pinout places the sense inputs on one side and the output and supply on the other, keeping the high-current sense traces away from the low-level output signal.

Frequently asked questions

Is MAX4080FASA+ suitable for high-side current sensing?

Yes, the MAX4080FASA+ is a current-sense amplifier designed for high-side sensing. Its 76 V maximum supply voltage allows it to monitor current on the high side of a supply rail up to 76 V, and its 250 kHz bandwidth supports fast overcurrent detection.

What is the typical application for MAX4080FASA+?

Typical applications include high-side current sensing in power supplies, battery monitoring, motor control, and telecom equipment. The wide supply range and industrial temperature rating make it suitable for both low-voltage portable gear and high-voltage industrial systems.