MAX9634HEUK+T

Instrumentation, Op Amps, Buffer Amps Overview

The MAX9634HEUK+T is a unidirectional high-side current-sense amplifier from Analog Devices/Maxim Integrated. It features a gain of 100 V/V, an input common-mode voltage range of 1.6V to 28V, and a maximum supply current of 1μA. The device offers a maximum input offset voltage of 250μV and a maximum gain error of 0.5%. It operates within a temperature range of -40°C to +85°C and is housed in a 5-pin SOT-23 package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-low quiescent supply current for battery-operated applications
• High precision with low input offset voltage and minimal gain error
• Wide input common-mode voltage range supporting high-side sensing
• Compact footprint available in tiny UCSP or standard SOT23 packages

Instrumentation, Op Amps, Buffer Amps Applications

• Cell phones
• PDAs
• Notebook computers
• Power-management systems
• Portable/battery-powered systems

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'HEUK' corresponds to the 100 V/V gain and SOT-23 package configuration. Confirm RoHS compliance status as indicated by the '+' designation. Ensure the operating environment remains within the specified -40°C to +85°C temperature range for guaranteed performance parameters.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high-side current monitoring is required with strict power constraints. The 100 V/V gain suits applications needing moderate signal amplification. Verify that the sense resistor value allows sufficient voltage drop while minimizing power loss. Ensure the system's minimum supply voltage exceeds the 1.6V lower limit of the common-mode range.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the MAX9634 nanoPower series of precision current-sense amplifiers. The family includes variants with gains of 25, 50, 100, and 200 V/V. The HEUK suffix specifically denotes the 100 V/V gain version packaged in a 5-pin SOT-23 format, distinguishing it from the UCSP options and other gain configurations.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct substitutes include MAX9634FEUK+ (50 V/V), MAX9634TEUK+ (25 V/V), and MAX9634WEUK+ (200 V/V) within the same SOT-23 package family.