MAX9118EXK+T

Overview

The MAX9118EXK+T is a nanopower analog comparator in a 5-pin SC70 package. It features an internal 1.252V reference and draws 600nA supply current. Operating from +1.6V to +5.5V, it has Beyond-the-Rails inputs extending 200mV beyond the rails. The open-drain output supports mixed-voltage systems with up to 35mA sink capability. Internal hysteresis ensures clean switching without phase reversal.

Feature Summary

• Incorporates an onboard 1.252V reference for simplified threshold detection
• Features open-drain output suitable for mixed-voltage logic interfacing
• Ensures glitch-free operation through crowbar-current-free switching design
• Provides input voltage range extending 200mV beyond the supply rails

Applications

• Two-cell battery monitoring and management systems
• Ultra-low-power mobile communications devices
• Threshold detectors and discriminators
• Sensing applications at ground or supply lines
• Telemetry and remote medical instruments

Procurement Notes

Verify the specific ordering suffix EXK+T confirms the SC70-5 package and lead-free status. Confirm the open-drain output configuration matches system requirements. Ensure the internal reference voltage specification aligns with application thresholds. Check availability status as distribution may vary by region.

Selection Notes

Select this component when ultra-low quiescent current is critical alongside integrated reference functionality. The open-drain output requires an external pullup resistor, which allows flexibility in setting logic levels. Consider the propagation delay characteristics against signal speed requirements. Evaluate the space-saving SC70 package against available board real estate constraints.

Part Context

This device belongs to the MAX9117–MAX9120 family of nanopower comparators. While sharing similar electrical characteristics, the MAX9118 specifically integrates an internal reference and utilizes an open-drain output stage. This distinguishes it from the push-pull variants and models lacking the onboard reference circuitry within the same series.

Replacement Considerations

The MAX9117EXK+T serves as a direct functional substitute if a push-pull output is acceptable instead of open-drain. Other family members like the MAX9119EXK+T lack the internal reference and require different biasing configurations.