MAX44284WAWT+T

Instrumentation, Op Amps, Buffer Amps Overview

The MAX44284WAWT+T is a high-side current-sense amplifier with a fixed gain of 200V/V. It operates on a single supply from 1.7V to 5.5V, drawing a maximum quiescent current of 31.2µA. The device features an input common-mode voltage range of -0.1V to +36V and offers a typical input offset voltage of 20.5µV at 25°C. It provides a small-signal bandwidth of 1kHz and is housed in a 6-bump WLP package measuring 1.3mm x 0.9mm.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Capacitive-coupled instrumentation amplifier architecture for high precision
• Active-low shutdown input reduces supply current below 1µA
• Optimized for use with small sense resistors to improve efficiency

Instrumentation, Op Amps, Buffer Amps Applications

• Smartphones and Tablets
• Notebook Computers
• DC-DC Current Sensing in Power Management
• Portable Battery-Powered Systems
• Medical Pulse Oximeters and Infusion Pumps

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'W' indicates the 200V/V gain option and 'AWT' denotes the 6-bump WLP package variant. Confirm RoHS compliance status via the '+' designation. Ensure the application circuit supports the specified -40°C to +125°C automotive temperature range requirements.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this part when a 200V/V gain is required for high-side sensing within a 36V common-mode range. The low quiescent current makes it suitable for battery-powered applications. Consider the 1kHz bandwidth limitation for high-speed transient detection needs.

Instrumentation, Op Amps, Buffer Amps Part Context

This component belongs to the MAX44284 family of high-precision, low-power current-sense amplifiers. The family includes variants with gains of 50V/V, 100V/V, 200V/V, and 500V/V. The MAX44284WAWT+T specifically utilizes the 200V/V gain configuration in a compact wafer-level package.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

MAX44284WAUT+T (SOT23-6 package equivalent)

Instrumentation, Op Amps, Buffer Amps FAQ

What is the input common-mode voltage range?

The device supports an input common-mode voltage range from -0.1V to +36V.

How does the shutdown feature function?

Driving the SHDN pin low places the device in shutdown mode, reducing supply current to less than 1µA. Driving it high enables normal operation.