MAX44286TAZS+

Instrumentation, Op Amps, Buffer Amps Overview

The MAX44286TAZS+T is a zero-drift, high-side current-sense amplifier in a 4-bump WLP package (0.78mm x 0.78mm x 0.35mm). It features a fixed gain of 25V/V and operates from 1.6V to 5.5V over -40°C to +125°C. Key electrical parameters include a maximum input offset voltage of 30µV, supply current of 12.5µA, and common-mode rejection ratio of 120dB.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-low input offset voltage enables detection of nanoampere-level currents
• Zero-drift autozeroing technique minimizes offset drift over time and temperature
• Single-supply operation shares VDD with the RS+ pin for space-saving integration

Instrumentation, Op Amps, Buffer Amps Applications

• Power management systems
• Portable and battery-powered devices
• Smartphones and mobile accessories
• Notebook computers and tablets

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'TAZS+' against official documentation to confirm the 25V/V gain option and automotive-grade temperature range (-40°C to +125°C). Ensure compatibility with the 4-bump WLP footprint dimensions during PCB layout. Confirm RoHS compliance status as indicated by the '+' suffix in ordering information.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when ultra-compact size and precision are critical for low-current monitoring. The 25V/V gain suits applications requiring higher output swing for larger sense voltages compared to higher-gain variants. Consider the shared supply/input architecture for simplified power rail designs in single-supply systems.

Instrumentation, Op Amps, Buffer Amps Part Context

Part of the MAX44286 family offering four gain options (25, 50, 100, 200 V/V) in identical packages. Designed for high-precision current sensing where board space is limited. Utilizes CMOS process technology for low power consumption and high common-mode rejection.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Other MAX44286 variants (MAX44286FAZS+, MAX44286HAZS+, MAX44286WAZS+) share the same package and pinout but offer different gains (50, 100, 200 V/V respectively). Verify gain requirements before substitution.

Instrumentation, Op Amps, Buffer Amps FAQ

How does the shared supply voltage affect the output swing?

The supply voltage is shared with the RS+ pin, limiting the maximum output voltage to VRS+(MIN) minus the sense voltage drop and output high voltage.

What is the recommended layout practice for minimizing errors?

Use Kelvin connections for the sense resistor and keep digital signals far from sensitive analog inputs to prevent leakage and thermocouple effects.