MAX9928FAUA+T

Instrumentation, Op Amps, Buffer Amps Overview

The MAX9928FAUA+T is a micropower, uni/bidirectional current sense amplifier manufactured by Analog Devices Inc./Maxim Integrated. It features a wide common-mode input voltage range from -0.1V to +28V and operates on a single supply voltage between 2.5V and 5.5V. The device offers a gain-bandwidth product of 150 kHz with a 3dB bandwidth of 150 kHz. Key electrical specifications include a maximum input offset voltage of 100 uV, an input bias current of 1.6 uA, and a common-mode rejection ratio of 104 dB. It consumes only 20 uA of operating supply current and functions within a temperature range of -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Supports bidirectional current sensing with a wide common-mode input range extending below ground.
• Delivers high precision with low input offset voltage and bias current for accurate measurements.
• Operates at micropower levels suitable for battery-powered or energy-constrained applications.

Instrumentation, Op Amps, Buffer Amps Applications

• Battery management systems
• Power supply monitoring
• Overcurrent protection circuits

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the complete part number including suffixes such as +T for reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure compatibility with the intended PCB footprint, specifically the uMAX-8 package. Check for any specific handling requirements related to electrostatic discharge during storage and assembly processes.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when bidirectional sensing is required within a 28V common-mode window. The 150 kHz bandwidth supports dynamic load monitoring. Compare against other series members if higher precision or different package options are needed. Verify that the 20 uA quiescent current meets system power budgets. Ensure the operating temperature range covers the environmental conditions of the final application.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the MAX9928F series of current sense amplifiers. It is designed for applications requiring accurate current measurement in both directions relative to ground. The family focuses on balancing precision with low power consumption. Other variants in the series may offer different gains, packages, or performance characteristics tailored to specific industrial or consumer electronics needs.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Check for direct pin-compatible substitutes within the MAX9928 series. Verify that alternative parts match the 28V common-mode range and 150 kHz bandwidth. Ensure replacement components support the same uMAX-8 package and operate within the specified temperature limits.