MAX9050AEUK-T

Overview

The MAX9050AEUK-T is a micropower, single-supply analog comparator integrated with a precision voltage reference. It operates within a supply voltage range of 2.7V to 5.5V and consumes only 40μA of quiescent supply current. The device features rail-to-rail inputs and outputs, with an input common-mode voltage range extending 250mV beyond the supply rails. It includes internal hysteresis of ±3mV to ensure clean output switching. The integrated voltage reference provides a fixed output of 2.500V with A-grade initial accuracy of ±0.4% and a temperature coefficient of 6ppm/°C typical.

Feature Summary

• Integrates a low-power comparator with a precision voltage reference in a compact package
• Features rail-to-rail inputs and push-pull outputs capable of sourcing and sinking up to 8mA
• Includes internal hysteresis for stable switching on slow-moving signals
• Offers high-accuracy voltage reference with curvature-correction circuitry

Applications

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

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration when ordering. Confirm that the 'A' grade designation corresponds to the required 0.4% initial accuracy and 6ppm/°C temperature coefficient specifications. Ensure the operating environment falls within the -40°C to +85°C temperature range defined for this variant. Cross-reference the SOT23-5 pinout against the target PCB footprint to prevent installation errors.

Selection Notes

Select this component when a single-supply operation between 2.7V and 5.5V is required alongside a stable 2.5V reference source. The low 40μA supply current makes it suitable for battery-powered applications where power conservation is critical. Choose this part over dual-comparator variants if only one comparison channel is needed. Verify that the 400ns propagation delay meets the timing requirements of the signal processing chain.

Part Context

This device belongs to the MAX9038–MAX9053 family of micropower comparators with integrated references. The MAX9050 specifically pairs a single comparator with a 2.500V reference. It is manufactured using CMOS process technology and is available in UCSP and SOT23 packages. The family shares common electrical characteristics such as rail-to-rail I/O and low supply current consumption across different grades and configurations.

Replacement Considerations

The MAX9050BEUK-T serves as a direct functional substitute with B-grade reference accuracy (1% initial accuracy). Other members of the MAX905x series may be considered if different reference voltages or package types are acceptable.