MAX22503EASD+T

Overview

The MAX22503EASD+T is a high-speed, half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc. under the Maxim Integrated brand. It supports data rates up to 100 Mbps and operates within a supply voltage range of 3V to 5.5V. The device features a single driver and a single receiver housed in a 14-pin SOIC package with an exposed pad. Key electrical characteristics include a receiver hysteresis of 250 mV for enhanced noise immunity and full duplex operation capability despite its half-duplex classification in some contexts.

Feature Summary

• Supports high-speed data transmission up to 100 Mbps for efficient communication.
• Features increased receiver hysteresis to provide superior noise rejection capabilities.
• Operates reliably across a wide industrial temperature range.

Applications

• Industrial automation control systems
• Building automation networks
• Process control instrumentation

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing components. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the selected variant matches the required pinout and thermal performance specifications for the target PCB layout.

Selection Notes

Select this component for applications requiring robust noise immunity in electrically noisy environments due to its enhanced hysteresis. Consider the 14-pin SOIC package constraints during board layout. Evaluate the 3V to 5.5V operating range against available system power rails to ensure compatibility.

Part Context

This part belongs to the MAX22503E series of high-speed transceivers designed for RS-485 and RS-422 communications. It is engineered to meet stringent electromagnetic interference requirements while maintaining signal integrity over long cable runs. The series is widely utilized in industrial settings where reliable data transfer is critical.

Replacement Considerations

Check for direct cross-reference parts within the MAX2250x family that offer identical pinouts and electrical specifications. Verify that any substitute maintains the same 100 Mbps data rate and 250 mV receiver hysteresis to ensure functional equivalence.

FAQ

What is the maximum data rate supported by the MAX22503EASD+T?

The device supports a maximum data rate of 100 Mbps.

How does the receiver hysteresis improve performance?

The 250 mV receiver hysteresis provides higher noise rejection compared to standard transceivers, ensuring reliable operation in noisy industrial environments.