LTC2862AMPS8-2#TRPBF

Drivers, Receivers, Transceivers Overview

The Analog Devices LTC2862AMPS8-2#TRPBF is a low-power RS-485/RS-422 transceiver operating on a 3V to 5.5V supply. It supports half-duplex communication with a maximum data rate of 250kbps and features ±60V overvoltage fault protection on interface pins during all modes, including power-down. The device provides Level 4 IEC ESD protection and ±40kV HBM protection on the A and B pins. It operates within an extended common mode range of ±25V and includes enhanced receiver noise immunity with guaranteed failsafe operation. The component is housed in an 8-lead (150mil) Plastic SO package and is qualified for automotive applications.

Drivers, Receivers, Transceivers Feature Summary

• Provides ±60V overvoltage fault protection on interface pins across all operational states
• Features robust ESD protection rated at ±40kV HBM and Level 4 IEC standards
• Supports extended common mode input voltage range from -25V to +25V
• Includes fully balanced differential receiver thresholds for low duty cycle distortion

Drivers, Receivers, Transceivers Applications

• Supervisory Control and Data Acquisition (SCADA)
• Industrial Control and Instrumentation Networks
• Automotive and Transportation Electronics
• Building Automation, Security Systems and HVAC
• Medical Equipment

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing this component. Confirm that the MP-grade temperature rating (-55°C to 125°C) aligns with your environmental requirements. Ensure the ordering information matches the exact part number to guarantee correct package type and electrical characteristics.

Drivers, Receivers, Transceivers Selection Notes

Select the LTC2862A-2 variant specifically for applications requiring low EMI due to its slew-rate limited 250kbps data rate. Choose this model over the LTC2862A-1 if high-speed 20Mbps transmission is not required but improved noise rejection is necessary. Verify compatibility with existing RS-485 or RS-422 network protocols before integration.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC2862A family of ruggedized transceivers designed for harsh industrial environments. It serves as an upgrade to previous models by offering significantly higher ESD tolerance and improved failsafe logic. The MP-grade designation ensures reliability across a wider temperature spectrum compared to standard commercial grades.

Drivers, Receivers, Transceivers Replacement Considerations

The datasheet confirms pin compatibility with the LTC2862 and LT1785. When substituting, verify that the replacement device supports the same ±60V fault protection and package dimensions. Ensure the alternative meets the specific automotive qualification requirements if used in transportation electronics.

Drivers, Receivers, Transceivers FAQ

How does the LTC2862A-2 handle failsafe conditions?

It uses a window comparator to detect when the differential input voltage falls below the failsafe threshold but above the negative receiver threshold, forcing the output to a logic 1 state after a specific delay.

What is the maximum common mode voltage supported?

The device supports an extended common mode range of ±25V, allowing operation in environments with large ground loop voltages.

Is the device protected against short circuits?

Yes, the driver outputs are protected from short circuits to any voltage within the -60V to +60V absolute maximum range, featuring progressive foldback current limiting.