MAX9077EUA+T

Overview

The MAX9077EUA+T is a dual, low-cost, ultra-small single-supply comparator from Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 2.1V to 5.5V and consumes only 3µA per comparator. The device features a propagation delay of 580ns and offers rail-to-rail outputs capable of driving loads up to 2mA. It includes ground-sensing inputs with a common-mode range extending to -0.2V and lacks differential clamping across inputs. Packaged in an 8-pin µMAX format, it supports industrial temperature ranges.

Feature Summary

• Ultra-low power consumption of 3µA per comparator
• Rail-to-rail push-pull output drivers
• Ground-sensing input capability
• No output phase inversion for overdriven inputs

Applications

• Battery-powered systems
• Threshold detectors/discriminators
• Keyless entry systems
• IR receivers
• Digital line receivers

Procurement Notes

Verify the specific ordering suffix 'EUA' corresponds to the 8-pin µMAX package variant when sourcing. Confirm RoHS compliance status indicated by the '+' symbol. Ensure the procurement channel provides official documentation matching the Maxim Integrated datasheet specifications for the MAX9077 series.

Selection Notes

Select this component for portable applications requiring minimal footprint and low quiescent current. The dual-channel configuration allows for multiple threshold comparisons in a single package. Verify that the required propagation delay aligns with system timing constraints, as the device is optimized for low power rather than high-speed switching.

Part Context

This part belongs to the MAX9075/MAX9077 family of comparators designed for 3V and 5V single-supply environments. While the MAX9075 is a single-channel device, the MAX9077 integrates two comparators. The 'EUA' designation specifically identifies the µMAX package option among various available form factors like SOT23 and SO.

Replacement Considerations

Direct substitutes include other MAX9077 variants such as MAX9077EKA+T (SOT23) or MAX9077ESA+ (SO). Cross-referencing pinouts and package dimensions is essential when substituting between different physical footprints within the same functional family.