MAX903CSA

Overview

The MAX903CSA is a high-speed, low-power single voltage comparator featuring differential analog inputs and TTL-logic outputs with active internal pull-ups. It includes independent TTL-compatible latch inputs to hold output states when driven low. The device supports separate analog and digital power supplies or a single combined supply, with an input common-mode range that includes the negative rail for ground sensing. It consumes 18mW per comparator at +5V and offers an 8ns typical propagation delay.

Feature Summary

• Features fast 8ns typical propagation delay suitable for high-speed data discrimination.
• Includes independent TTL-compatible latch inputs to freeze output states upon command.
• Supports flexible analog supply ranging from +5V to +10V or ±5V.
• Analog input common-mode range extends to the negative supply rail.

Applications

• High-speed A/D converters
• Sampling circuits
• Line receivers
• Voltage-to-frequency (V/F) converters

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm package integrity and pin alignment against the 8-SOIC specification. Review datasheet revisions for any updates to electrical characteristics or ordering information prior to integration.

Selection Notes

Select this part for applications requiring TTL-compatible outputs and latching functionality. Ensure supply voltages match the specified ranges for analog and digital rails. Consider thermal dissipation limits if operating near maximum ratings in enclosed environments.

Part Context

Part of the MAX900–MAX903 family of high-speed comparators. The MAX903 specifically provides a single channel with latch capability. New designs are advised to consider newer alternatives like the MAX9203 series for reduced power consumption while maintaining pin compatibility.

Replacement Considerations

Direct replacement: MAX903CSA+ (RoHS compliant version). Alternative family members include MAX903EPA and MAX903ESA for extended temperature ranges.