MAX9041AEUT+

Overview

The MAX9041AEUT+ is a micropower, single-supply analog comparator integrated with a precision voltage reference. It operates within a supply voltage range of 2.5V to 5.5V and consumes only 40μA of quiescent supply current. The device features a single comparator with rail-to-rail inputs and outputs, capable of sinking and sourcing up to 8mA. It includes an internal ±3mV hysteresis mechanism to ensure clean output switching. The integrated voltage reference provides a fixed output of 2.048V with A-grade initial accuracy of 0.4% maximum and a typical temperature coefficient of 6ppm/°C.

Feature Summary

• Integrates a low-power comparator with a precision voltage reference in a compact SOT23-6 package
• Features rail-to-rail input and output stages for wide common-mode voltage operation
• Includes internal hysteresis to prevent output oscillation during slow signal transitions
• Utilizes proprietary curvature-correction circuitry for high thermal stability

Applications

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

Procurement Notes

Verify the specific suffix 'EUT+' corresponds to the lead-free/RoHS-compliant SOT23-6 packaging variant. Confirm that the 'A' grade designation matches the required 0.4% initial accuracy specification. Ensure the operating environment remains within the -40°C to +85°C temperature range defined for this component.

Selection Notes

Select this component when a single-supply design requires both signal comparison and a stable reference voltage source. It is suitable for applications where minimizing board space is critical due to the small footprint. Consider the 400ns propagation delay and 40μA current consumption for power-sensitive designs.

Part Context

This part belongs to the MAX9038–MAX9043 family of micropower comparators. These devices combine low-voltage comparators with precision references to support both 3V and 5V system architectures. The MAX9041 specifically integrates one comparator and a 2.048V reference, distinguishing it from variants offering different reference voltages or dual comparator configurations.

Replacement Considerations

The MAX9041BEUT+ serves as a direct functional substitute within the same series, differing primarily in the B-grade reference accuracy specifications.