MAX9053BEUB

Overview

The MAX9053BEUB is a dual-channel precision analog comparator with an integrated voltage reference, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply voltage ranging from 2.7V to 5.5V and consumes only 55µA of quiescent current at 2.7V. The device features rail-to-rail inputs and outputs, with a common-mode input range extending 250mV beyond the supply rails. It includes internal hysteresis of ±3mV and offers a propagation delay of 400ns typical. The B-grade reference provides a fixed output of 2.500V with 1% initial accuracy and a temperature coefficient of 100ppm/°C. It is housed in a 10-pin uMAX package.

Feature Summary

• Integrates two comparators and one precision voltage reference in a compact footprint
• Features rail-to-rail inputs and push-pull outputs capable of sourcing and sinking up to 8mA
• Includes internal ±3mV hysteresis for clean switching with slow-moving signals
• Output stage design minimizes supply current surges during switching to prevent power glitches

Applications

• Precision battery management systems
• Window comparator circuits
• Infrared (IR) receivers
• Level translators
• Digital line receivers

Procurement Notes

Verify the specific suffix 'B' indicates the B-grade reference accuracy (1%) rather than A-grade (0.4%). Confirm the 'E' suffix corresponds to the extended temperature range of -40°C to +85°C. Ensure the 'U' package code matches the required 10-pin uMAX form factor. Check for RoHS compliance status if lead-free packaging is mandatory for the assembly process.

Selection Notes

Select this component when low power consumption is critical alongside precise voltage referencing. The dual comparator configuration allows for complex threshold monitoring within a single IC. Consider the 400ns propagation delay against system timing requirements. The 2.5V reference output eliminates the need for external resistor dividers in many applications, simplifying board layout.

Part Context

This part belongs to the MAX9038–MAX9053 family of micropower, single-supply comparator and reference ICs. It shares architectural similarities with the MAX9052 but differs in package type and potentially pinout configuration. The family is designed for battery-operated systems requiring both signal comparison and stable voltage generation.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.