MAX250CSD+

Overview

The MAX250CSD+ is a +3V, isolated RS-232 driver and receiver integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. It provides one driver and one receiver for RS-232 communication applications. The device operates from a single +3V supply and features an internal charge pump to generate the necessary voltages for RS-232 signaling without requiring external capacitors. It is housed in a small outline package (SOIC) with 8 pins.

Feature Summary

• Integrated isolation barrier for safe signal transmission
• Single +3V power supply operation capability
• Internal charge pump eliminates need for external capacitors

Applications

• Isolated RS-232 communication links
• Industrial control systems requiring galvanic isolation
• Medical equipment with safety isolation requirements

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for lead-free packaging specifications. Ensure the ordering suffix matches the required package type and temperature range. Request original datasheets and test reports to validate performance characteristics against design requirements.

Selection Notes

Select this component when designing circuits that require isolated RS-232 interfaces powered by a single +3V source. Consider the SOIC-8 package constraints for PCB layout. Evaluate the isolation voltage ratings against system safety standards. Compare data rates and drive capabilities with other isolated transceivers if higher throughput is needed.

Part Context

This part belongs to the MAX250/MAX251 family of isolated RS-232 transceivers. These devices are designed for applications needing reliable serial communication across isolation barriers while maintaining low power consumption and simplified external component requirements compared to traditional solutions.

Replacement Considerations

Check for pin-compatible alternatives within the Maxim/Analog Devices portfolio that offer similar isolation ratings and +3V operation. Verify electrical parameters such as data rate and output voltage levels match the original design specifications before substitution.