MAX9120EXK-T

Overview

The MAX9120EXK+T is a nanopower analog comparator in a 5-pin SC70 package. It operates on a supply voltage range of +1.6V to +5.5V with a typical supply current of 350nA. The device features an open-drain output stage and Beyond-the-Rails inputs that extend 200mV beyond the supply rails. It includes internal hysteresis for clean switching and guarantees operation from -40°C to +85°C.

Feature Summary

• Ultra-low power consumption with 350nA supply current
• Beyond-the-Rails input voltage range extending 200mV past supply rails
• Open-drain output suitable for mixed-voltage system design
• Internal hysteresis prevents oscillation during slow signal transitions

Applications

• 2-Cell Battery Monitoring/Management
• Threshold Detectors/Discriminators
• Sensing at Ground or Supply Line
• Telemetry and Remote Systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type, temperature range, and lead-free status. Ensure compatibility with the required supply voltage and load conditions before integration into the final design.

Selection Notes

Select this component when ultra-low quiescent current is critical for battery life. The open-drain output requires an external pull-up resistor. Use this part instead of push-pull variants if wire-OR logic or level shifting between different voltage domains is required.

Part Context

This device belongs to the MAX9117–MAX9120 family of nanopower comparators. While the MAX9117/MAX9118 include an internal reference and push-pull outputs, the MAX9120 variant specifically omits the reference and utilizes an open-drain output configuration within the same compact SC70 footprint.

Replacement Considerations

Public confirmed substitute part numbers: MAX9119EXK+T (Push-Pull Output).

FAQ

Does the MAX9120 have an internal voltage reference?

No, the MAX9120 does not feature an internal reference; it is designed without one to minimize supply current.

What is the maximum voltage the open-drain output can withstand?

The open-drain output can be pulled up to an absolute maximum of 6V above VEE.