MAX9052AESA+

Overview

The MAX9052AESA+ is a micropower, single-supply analog comparator integrated with a precision voltage reference. It features dual comparators and one reference in an 8-pin SO package. Operating from a 2.7V to 5.5V supply, it consumes 60µA typical supply current. The device provides a fixed 2.500V reference output with A-grade accuracy of ±0.4% initial accuracy and 6ppm/°C temperature coefficient. Comparator inputs are rail-to-rail, extending 250mV beyond the rails, with 400ns propagation delay and internal ±3mV hysteresis.

Feature Summary

• Integrates dual comparators with a precision voltage reference for space-constrained designs
• Features rail-to-rail input and output stages capable of driving loads up to 8mA
• Includes internal hysteresis to ensure clean switching on slow-moving signals
• Minimizes supply current surges during switching to prevent power glitches

Applications

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

Procurement Notes

Verify the specific suffix 'A' indicates the A-grade reference accuracy (±0.4%, 6ppm/°C) rather than B-grade specifications. Confirm the 'E' denotes the 8-pin SO package type. Ensure the '+' suffix confirms lead-free/RoHS compliance status as per manufacturer standards. Cross-reference the full part number against official Analog Devices documentation to validate availability and revision history before procurement.

Selection Notes

Select this component when dual independent comparison functions are required alongside a stable voltage reference within a single package. It is suitable for applications demanding low quiescent current and rail-to-rail signal compatibility. Consider the 400ns propagation delay for timing constraints. Verify that the 2.500V reference output meets system threshold requirements without external adjustment.

Part Context

This device belongs to the MAX9038–MAX9043/MAX9050–MAX9053 family of micropower comparators with precision references. While other variants offer single comparators or different reference voltages like 1.23V or 2.048V, the MAX9052 specifically combines dual comparators with a 2.500V reference. It shares the same low-power architecture and packaging options as its siblings but targets applications requiring two distinct comparison channels.

Replacement Considerations

Direct substitutes include MAX9052AEUA (µMAX package) and MAX9052BESA (B-grade reference). For single-channel needs, consider MAX9051AESA. Dual-channel alternatives with different reference voltages include MAX9042AESA (2.048V reference). Verify pinout compatibility and thermal characteristics when substituting packages.

FAQ

What is the common-mode input voltage range?

The common-mode input voltage range extends 250mV beyond each supply rail, allowing operation from VEE - 0.25V to VCC + 0.25V.

Does the device require an output capacitor on the reference pin?

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

How does the output stage handle switching currents?

The unique output stage design limits supply current surges while switching, virtually eliminating supply glitches typical of many other comparators.