MAX9018AEKA-T

Overview

The MAX9018AEKA-T is a dual precision nanoPower comparator in an 8-pin SOT23 package. It operates from 1.8V to 5.5V with a supply current of 1.2µA at 1.8V and 2.3µA at 5V. The device features Beyond-the-Rails inputs extending 200mV beyond the supply rails, an internal 1.236V ±1% reference, and open-drain outputs. Input offset voltage is guaranteed at 5mV max, with 4mV internal hysteresis.

Feature Summary

• Features Beyond-the-Rails input capability allowing operation 200mV beyond supply rails
• Includes an integrated 1.236V ±1% precision voltage reference
• Open-drain output stage suitable for mixed-voltage system designs
• Contains internal 4mV hysteresis to ensure clean switching

Applications

• 2-cell battery monitoring and management systems
• Ultra-low power mobile communications devices
• Notebooks and PDAs
• Threshold detectors and window detectors
• Telemetry and remote sensing systems

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration. Confirm A-grade designation ensures the 1.236V ±1% reference accuracy. Ensure the open-drain output requirement matches the circuit design needs compared to push-pull variants.

Selection Notes

Select this component when low supply current is critical alongside precise threshold detection. The open-drain output requires an external pull-up resistor. Verify that the 1.236V internal reference meets the required accuracy specifications for the application.

Part Context

Part of the MAX9015–MAX9020 family of nanoPower comparators. These devices are designed for space-saving applications using the 8-pin SOT23 package. They offer ultra-low power consumption while maintaining high precision and robust input protection features.

Replacement Considerations

Check MAX9017AEKA-T for identical specifications but with a CMOS push-pull output stage instead of open-drain.