MAX250EPD

Overview

The MAX250EPD+ is an RS-232 interface transceiver manufactured by Analog Devices / Maxim Integrated. It operates on a single +5V power supply and features two drivers and two receivers for full-duplex communication. The device supports data rates up to 116 kb/s with a typical operating supply current of 500 µA. It includes a shutdown mode for low-power applications. The component is housed in a 14-pin PDIP package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Provides electrical isolation between logic circuits and RS-232 lines using external components
• Integrates push-pull transformer drivers for efficient signal transmission
• Features a low-power shutdown mode to minimize energy consumption

Applications

• High-noise data communications systems
• Industrial control networks requiring galvanic isolation
• Bridging ground differentials in analog circuit interfaces

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and environmental compliance. Confirm availability status directly with authorized distributors as stock levels fluctuate. Ensure the ordering information matches the required industrial temperature range and pin configuration for your design.

Selection Notes

Select this component when designing isolated RS-232 links that require minimal external parts. It simplifies isolation design by integrating logic handling and optical coupling interfaces. Consider the need for external transformers and optocouplers when planning the bill of materials and PCB layout constraints.

Part Context

The MAX250EPD+ belongs to the MAX250/MAX251 series, which are designed as a cost-effective solution for isolated serial communications. This series integrates the necessary logic processing while relying on external passive components to achieve the required isolation barrier, distinguishing it from fully integrated isolated transceivers.

Replacement Considerations

MAX220