MAX9018AEKA+T

Overview

The MAX9018AEKA+T is a dual precision nanoPower comparator in an 8-pin SOT-23 package. It operates on a supply voltage range of 1.8V to 5.5V with a typical supply current of 1.4µA at 5V and 1.9µA at 1.8V. The device features an internal 1.236V ±1% reference, input offset voltage under 5mV, and open-drain outputs suitable for mixed-voltage systems. Input common-mode voltage extends 200mV beyond the rails, and it includes 4mV internal hysteresis.

Feature Summary

• Features Beyond-the-Rails inputs allowing operation with signals exceeding supply limits
• Includes an integrated precision voltage reference for simplified threshold detection
• Open-drain output stage enables compatibility with mixed-voltage logic levels
• Internal hysteresis prevents output oscillation during slow signal transitions

Applications

• Two-cell battery monitoring and management systems
• Ultra-low power mobile communications devices
• Notebooks and personal digital assistants (PDAs)
• Threshold detectors and window detectors
• Telemetry and remote sensing systems

Procurement Notes

Verify the specific suffix 'EKA/V+' against the manufacturer's official ordering guide to confirm the package type, temperature grade, and tape-and-reel packaging specifications. Ensure the component meets AEC-Q100 Grade 3 requirements if automotive qualification is necessary for the target application environment.

Selection Notes

Select this part when low quiescent current is critical alongside precise voltage comparison. The open-drain output requires an external pull-up resistor, which allows flexibility in interfacing with different logic families. Consider the internal reference availability as a space-saving alternative to external voltage dividers or discrete references.

Part Context

This component belongs to the MAX9015–MAX9020 family of nanoPower comparators designed for portable electronics. The series offers single and dual channel options with varying output stages and reference configurations. All devices share the ultra-small SOT-23 footprint and are optimized for battery-powered applications requiring minimal power consumption.

Replacement Considerations

Consult the datasheet for cross-reference information regarding similar single-channel comparators like the MAX9117–MAX9120. Verify pinout compatibility and electrical characteristics before substituting with other dual comparators from the same manufacturer or third-party sources.