MAX9050BEUK-T

Overview

The MAX9050BEUK-T is a micropower, single-supply analog comparator integrated with a precision voltage reference. It operates on a 2.7V to 5.5V supply and consumes 40µA of quiescent current. The device features rail-to-rail inputs and outputs, with an input common-mode range extending 250mV beyond the supply rails. It includes internal hysteresis for clean switching and offers a fixed 2.500V reference output. Available in a 5-pin SOT-23 package, it supports operation from -40°C to +85°C.

Feature Summary

• Combines a low-power comparator with a 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 hysteresis to ensure stable output transitions with slow-moving signals
• Utilizes a unique output stage design that minimizes supply current surges during switching

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 when ordering. Confirm the 'B' grade designation corresponds to the required 1% initial accuracy and 100ppm/°C temperature coefficient specifications. Ensure the operating environment remains within the specified -40°C to +85°C temperature range for guaranteed performance.

Selection Notes

Select this component for applications requiring both signal comparison and a stable reference voltage in a minimal space. It is suitable for battery-operated systems due to its low supply current consumption. Consider the B grade if higher initial accuracy is not critical, as it offers cost-effective performance. Verify that the 2.500V reference output aligns with system requirements.

Part Context

This part belongs to the MAX9038–MAX9053 family of micropower comparators with integrated references. The MAX9050 variant specifically provides a 2.500V reference output. It shares architectural similarities with other members like the MAX9051 but differs in reference voltage and pin configuration. The family is designed for low-voltage, single-supply operations in portable electronics.

Replacement Considerations

Direct substitutes include MAX9050AEUK+T for A grade specifications. Other family members such as MAX9051BEUK+T offer similar functionality but with different reference voltages. Cross-reference pinouts and electrical characteristics carefully before substitution.

FAQ

What is the typical input bias current for the MAX9050BEUK-T?

The typical input bias current is 1.0pA when the input voltage is between the supply rails.

Does the MAX9050BEUK-T require an output capacitor on the reference pin?

No, the device does not require an output capacitor for frequency stability as it is stable for capacitive loads up to 4.7nF.

How does the output stage design affect power consumption?

The unique output stage design limits supply current surges while switching, virtually eliminating supply glitches and minimizing overall power consumption under dynamic conditions.