MAX9041BESA+T

Overview

The MAX9041BESA+T is a micropower, single-supply comparator with an integrated precision voltage reference. It operates from a 2.5V to 5.5V supply and consumes only 40µA of quiescent current. The device features rail-to-rail inputs and outputs, ±3mV internal hysteresis, and a propagation delay of 400ns. The B-grade reference provides a 2.048V output with 1% initial accuracy and 100ppm/°C temperature coefficient.

Feature Summary

• Integrates a low-power comparator with a precision voltage reference in a single package
• Features rail-to-rail input and output stages for maximum dynamic range
• Includes internal hysteresis to ensure clean switching on slow-moving signals
• Output stage design minimizes supply current surges during transitions

Applications

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

Procurement Notes

Verify the specific suffix 'B' indicates the B-grade reference accuracy (1% initial accuracy) rather than A-grade. Confirm the '+T' designation corresponds to tape-and-reel packaging. Check manufacturer documentation for current production status as this component family may have discontinuation notices.

Selection Notes

Select this part when a single-channel comparator with a fixed 2.048V reference is required. It is suitable for applications needing rail-to-rail operation and low power consumption under 40µA. Consider alternative packages like SOT23 if board space is limited, or dual-channel variants if multiple comparators are needed.

Part Context

This component belongs to the MAX9038–MAX9043 series of micropower comparators with integrated references. These devices are designed for battery-operated systems requiring low voltage operation. The MAX9041 specifically offers one comparator channel with an uncommitted inverting input and a 2.048V reference output.

Replacement Considerations

Direct substitutes within the same family include MAX9041AEUT+T (SOT23-6 package) and MAX9041AESA (SO-8 package). Ensure the replacement matches the required reference accuracy grade and package dimensions.