MAX907EPA

Overview

The MAX907EPA is a dual, high-speed, ultra-low-power voltage comparator designed for single +5V supply systems. It features a 40ns propagation delay with 5mV input overdrive and consumes only 3.5mW per comparator. The device operates within a 4.5V to 5.5V positive supply range and includes built-in hysteresis for clean switching. It offers TTL-compatible outputs, a wide input common-mode range extending below ground, and low offset voltage of 2mV typical. Available in an 8-pin Plastic DIP package, it supports continuous input/output short-circuit protection.

Feature Summary

• High-speed operation with 40ns propagation delay at minimal power consumption
• Built-in internal hysteresis eliminates external resistor requirements for stable switching
• TTL-compatible outputs require no external pullup circuitry
• Wide input common-mode range extends from 200mV below ground to near the positive rail

Applications

• Battery-powered systems requiring low current draw
• High-speed A/D converters
• Threshold detectors and discriminators
• Zero-crossing detectors

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix 'E' indicates the -40°C to +85°C industrial temperature range. Check for RoHS compliance status as manufacturing processes may vary. Ensure the PDIP-8 package matches your PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component when designing single-supply systems that demand both high speed and low power dissipation. It serves as a replacement for older comparators needing external hysteresis components. Consider the complementary output availability if using the MAX909 variant instead. Ensure the application does not exceed the absolute maximum ratings for differential input voltage or power dissipation.

Part Context

This part belongs to the MAX907/MAX908/MAX909 family of comparators manufactured by Maxim Integrated, now part of Analog Devices Inc. The MAX907 specifically provides two independent comparators in an 8-pin configuration. The datasheet notes that the MAX909 was produced on a process no longer available, but the MAX907 remains a standard option for dual-channel applications.

Replacement Considerations

The datasheet explicitly states the MAX909 is Not Recommended for New Designs due to wafer foundry process unavailability. For existing designs, consult technical support for potential Maxim replacements or industry second-sources. Verify pin compatibility if substituting with other dual comparators from the same series.