MAX22503EASD+

Overview

The MAX22503EASD+ is a full-duplex RS-485/RS-422 transceiver operating at data rates up to 100Mbps. It features integrated hot-swap protection and fail-safe receivers that ensure a logic-high output when inputs are shorted or open for longer than 10μs. The device operates on a 3V to 5.5V supply with a maximum shutdown current of 5μA. It provides ±15kV ESD protection (HBM) and supports a common-mode range from -15V to +15V. Packaged in a 14-pin SOIC, it functions reliably across an ambient temperature range of -40°C to +125°C.

Feature Summary

• High-speed operation supporting up to 100Mbps data rates with wide receiver bandwidth
• Integrated hot-swap functionality prevents false driver transitions during power-up or hot-plug events
• Fail-safe receiver guarantees a logic-high output when differential inputs are shorted or open
• Robust protection including ±15kV ESD tolerance and continuous short-circuit protection

Applications

• Motion Control Systems
• Encoder Interfaces
• Field Bus Networks
• Industrial Control Systems
• Backplane Busses

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and RoHS compliance status. Confirm availability through authorized distributors as stock levels fluctuate. Ensure the component matches the required 14-pin SOIC footprint and thermal characteristics for your PCB layout design.

Selection Notes

Select this component for applications requiring full-duplex communication at speeds up to 100Mbps. It is suitable for environments demanding high noise immunity due to its large receiver hysteresis. Consider the 14-pin SOIC package constraints and verify that the system voltage falls within the 3V to 5.5V operating range.

Part Context

This part belongs to the MAX2250xE family of ESD-protected RS-485/RS-422 transceivers manufactured by Analog Devices / Maxim Integrated. The family includes variants such as the MAX22500, MAX22502, MAX22506, MAX22507, and MAX22508, which differ primarily in duplex mode, data rate, and package options.

Replacement Considerations

Direct pin-compatible replacements within the same series include the MAX22507EASA+ and MAX22508EASA+. Verify functional equivalence regarding duplex mode and data rate specifications before substitution.