MAX902EPD

Overview

The MAX902EPD is a dual-channel high-speed voltage comparator from the MAX900–MAX903 series, manufactured by Analog Devices Inc./Maxim Integrated. It features differential analog inputs and TTL-logic outputs with active internal pull-ups. The device includes independent TTL-compatible latch inputs to hold output states. It operates on separate analog and digital supplies or a single combined supply, supporting flexible analog voltages from +5V to +10V or ±5V. The input common-mode range includes the negative rail for ground sensing. Typical propagation delay is 8ns at 5mV overdrive, with power consumption of 18mW per comparator at +5V.

Feature Summary

• Features fast propagation delay suitable for high-speed data discrimination applications
• Includes independent TTL-compatible latch inputs to maintain output states
• Supports flexible analog supply configurations including single or split rails
• Provides TTL-compatible outputs optimized for driving low-power Schottky TTL loads

Applications

• High-speed A/D converters and sampling circuits
• Line receivers and threshold detectors
• Input trigger circuitry and PWM circuits
• Fast V/F converters and alarm limit monitors

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm package integrity and pin alignment against the PDIP-14 specification. Check datasheet revisions as this part is marked Not Recommended for New Designs. Ensure environmental compliance matches project requirements before procurement.

Selection Notes

Select the MAX902EPD when dual comparators with latching capability are required. Consider the MAX9201/MAX9202/MAX9203 series for newer designs offering half the power dissipation with pin-for-pin compatibility. Evaluate supply voltage flexibility and latch timing requirements against application constraints.

Part Context

The MAX902EPD belongs to the MAX900–MAX903 family of high-speed, low-power voltage comparators. Manufactured using a process no longer available, it is designated Not Recommended for New Designs. The EPD suffix indicates an extended temperature range of -40°C to +85°C in a 14-pin Plastic DIP package. Existing users may continue utilizing this component for legacy systems.

Replacement Considerations

The MAX9201, MAX9202, and MAX9203 are recommended replacements offering pin-for-pin compatibility with identical speed but reduced power dissipation.