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Analog Devices MAX4173TEUT — Analog & Data Acquisition

MAX4173TEUT Current Sense Amplifier, 1.4 MHz, SOT-23-6

MPNMAX4173TEUT
End of Life

Maxim Integrated MAX4173TEUT, Current Sense Amplifier, SOT-23-6, 1.4 MHz -3dB Bandwidth, 420 µA Supply, 3 V to 28 V Supply Span, -40°C to 85°C, Active Lifecycle.

$1.53Ref. price · indicative, final on quote
Analog Devices MAX4173TEUT datasheet (PDF)
PackagingSOT-23-6
RoHSRoHS non-compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX4173TEUT specifications
ParameterValue
MountingSurface Mount
Amplifier typeCurrent Sense
Voltage - input offset300 µV
Voltage - supply span28 V
Current - supply420µA
Current - input bias100 µA
Operating temperature-40°C ~ 85°C
-3db bandwidth1.4 MHz
PackageBulk
CaseSOT-23-6
Number of circuits1

Product details

1.4 MHz current sense amp — what that bandwidth buys you

The MAX4173TEUT is a single-channel current sense amplifier from Maxim Integrated, packaged in a SOT-23-6. Its 1.4 MHz -3dB bandwidth means it can track current transients in switching power supplies or motor-drive phases without significant phase lag — useful when the control loop needs to see the inductor current ramp, not just the DC average. Supply current is 420 µA, low enough that the sense circuit won't dominate the standby budget in a battery-powered system. The input offset voltage is 300 µV, which translates to a few milliamps of readout error on a typical 10 mΩ shunt — fine for overcurrent detection, but worth derating if you need precision below 1 A.

Supply span: 3 V to 28 V — fits 24 V industrial rails

The supply range runs from 3 V minimum to 28 V maximum, so it can sit directly on a 24 V industrial bus with 4 V of headroom for transients. No external pre-regulator needed for that rail.

Package and mounting — SOT-23-6, surface mount

The device comes in a SOT-23-6 package with surface-mount termination.

Frequently asked questions

What is the closest pin-compatible alternative to MAX4173TEUT in this component family?

The MAX4173TEUT+T is a tape-and-reel variant of the same die in the same SOT-23-6 package — electrically identical, just different shipping medium. If you need RoHS compliance, check the MAX4173TEUT+T or other suffix options; the base MAX4173TEUT is listed as RoHS non-compliant.

Is MAX4173TEUT compatible with 3.3V logic?

Yes. The supply range goes down to 3 V, so the part can run from a 3.3 V rail. The output swings within the supply rails, so it can drive a 3.3 V ADC or comparator input directly.