MAX4173TEUT-T

Instrumentation, Op Amps, Buffer Amps Overview

The MAX4173TEUT-T is a low-cost, precision, high-side current-sense amplifier housed in a compact SOT23-6 package. It provides a voltage output proportional to the drop across an external sense resistor, eliminating the need for gain-setting resistors. The device operates from a single +3V to +28V supply and features a common-mode input range of 0V to +28V, independent of the supply voltage. This allows monitoring even when connected to a battery in deep discharge. With a typical supply current of 420µA and a bandwidth of 1.7MHz, it supports applications requiring precise current monitoring.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• High accuracy with ±0.5% full-scale error
• Wide common-mode input range from 0V to +28V
• Integrated voltage output eliminates external gain resistors
• Low power consumption suitable for battery-powered systems

Instrumentation, Op Amps, Buffer Amps Applications

• Notebook computers
• Portable/battery-powered systems
• Smart battery packs and chargers
• Cell phones
• Power-management systems

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify that the ordering suffix 'T' corresponds to tape-and-reel packaging as specified in the manufacturer's documentation. Confirm the specific gain version (e.g., T, F, or H) matches the required amplification factor for the application circuit. Ensure the component meets lead-free and RoHS compliance requirements if mandated by the system design specifications.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select the appropriate gain variant based on the desired full-scale output voltage and the expected maximum load current. The MAX4173T offers a gain of 20V/V, while other variants provide higher gains. Consider the external sense resistor value to ensure the differential input voltage remains within the recommended operating limits while minimizing power dissipation losses in the sensing path.

Instrumentation, Op Amps, Buffer Amps Part Context

This component belongs to the MAX4173 family of high-side current-sense amplifiers manufactured by Analog Devices Inc./Maxim Integrated. The family includes variants with different fixed gains to accommodate various current sensing ranges. The TEUT designation indicates the specific pinout, package type, and temperature range configuration for this particular part number.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Compatible substitutes include MAX4173FEUT+T and MAX4173HEUT+T, which share the same SOT23-6 package but offer different fixed gains of 50V/V and 100V/V respectively. Verify that the alternative gain setting aligns with the system's signal conditioning requirements before substitution.