MAX22507EAUB+T

Overview

The MAX22507EAUB+T is a full-duplex RS-485/RS-422 transceiver from Analog Devices, housed in a 10-pin μMAX package. It supports data rates up to 50Mbps with a supply voltage range of 3V to 5.5V and operates within a temperature range of -40°C to +125°C. The device 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. It includes ±15kV ESD protection (HBM) and withstands over ±4kV EFT. The typical supply current is 4mA, with a shutdown current of 5μA max.

Feature Summary

• Integrated hot-swap protection prevents false transitions during power-up or bus insertion events.
• Fail-safe receiver design guarantees a logic-high output state when differential inputs are shorted or open.
• High electromagnetic interference immunity with large receiver hysteresis for improved signal integrity.
• Robust pin protection including ±15kV ESD and high electrical fast transient tolerance.

Applications

• Motion control systems
• Encoder interfaces
• Field bus networks
• Industrial control systems
• Backplane busses

Procurement Notes

Verify the specific ordering suffix '+T' indicates tape and reel packaging rather than tube. Confirm the 'U10+6C' package code matches the required 10-pin μMAX footprint. Ensure the component meets RoHS compliance standards as indicated by the '+' designation. Cross-reference the manufacturer part number against official Analog Devices documentation to validate authenticity.

Selection Notes

Select this component for applications requiring full-duplex communication at speeds up to 50Mbps. The 10-pin μMAX package is suitable for space-constrained designs compared to the 8-pin SOIC variant. Consider the low-power shutdown feature if minimizing standby current is critical. Verify that the system environment requires the specified -40°C to +125°C operating temperature range.

Part Context

This part belongs to the MAX22507E/MAX22508E family of ESD-protected RS-485/RS-422 transceivers. The MAX22507E variant specifically offers the 10-pin μMAX package and low-power shutdown capability, distinguishing it from the MAX22508E which uses an 8-pin SOIC package without shutdown functionality. Both share identical electrical performance characteristics.

Replacement Considerations

The MAX22507EAUB+ serves as the non-reel version of this component. The MAX22508E series provides equivalent electrical performance but utilizes an 8-pin SOIC package and lacks the low-power shutdown mode found in the MAX22507E.

FAQ

How does the fail-safe receiver function?

The receiver guarantees a logic-high output on RO when the differential input voltage is between ±50mV or when inputs are open/shorted for longer than 10μs.

What is the maximum common-mode voltage range?

The device supports a common-mode voltage range of -15V to +15V.

Does the MAX22507EAUB+T support low-power shutdown?

Yes, driving RE high and DE low enables the low-power shutdown mode, reducing supply current to a maximum of 5μA.