MAX9027EBT-T

Overview

The MAX9027EBT-T is a nanopower comparator from the MAX9025–MAX9028 family, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply voltage ranging from +1.8V to +6V and consumes an ultra-low supply current of 0.6µA. The device features Beyond-the-Rails inputs that extend 200mV beyond the supply rails and includes internal hysteresis for noise immunity. It utilizes a CMOS push-pull output stage capable of sourcing and sinking up to ±5mA with rail-to-rail swing. Packaged in a space-saving 6-bump UCSP (1mm x 1.52mm), it operates within a temperature range of -40°C to +85°C.

Feature Summary

• Ultra-low power consumption of 0.6µA without onboard reference
• Beyond-the-Rails input common-mode voltage range extending 200mV past supply rails
• CMOS push-pull output stage providing rail-to-rail swing with ±5mA drive capability
• Internal 4mV hysteresis ensures clean switching and prevents oscillation

Applications

• 2-cell battery monitoring and management systems
• Zero-crossing detection circuits
• Logic-level translation between different voltage domains
• Ultra-low-power portable sensing applications

Procurement Notes

Verify the specific ordering suffix 'EBT' corresponds to the 6-bump UCSP package and the '-T' indicates tape-and-reel packaging. Confirm RoHS compliance status if required by your manufacturing standards. Ensure the design accommodates the miniature footprint dimensions and bump layout as specified in the package outline drawings.

Selection Notes

Select the MAX9027EBT-T when a push-pull output is required alongside minimal quiescent current. Unlike the MAX9026 variant, this part lacks an internal reference, making it suitable for designs using external threshold voltages. Verify that the system's input signals remain within the extended common-mode range to ensure proper operation across the full supply voltage spectrum.

Part Context

This component belongs to the MAX9025–MAX9028 series of nanopower comparators designed for space-constrained, battery-operated devices. The series distinguishes itself through unique output stage circuitry that minimizes supply-current surges during switching, thereby reducing power glitches. The MAX9027 specifically offers a push-pull output configuration without an integrated reference, balancing low power usage with versatile output driving capabilities.

Replacement Considerations

The MAX9025EBT-T serves as a functional substitute if an internal 1.236V reference is needed, though it draws higher current (1µA). For open-drain output requirements, the MAX9028EBT-T is the direct alternative within the same package and performance class.