LTC2862HDD-2#PBF

Drivers, Receivers, Transceivers Overview

The LTC2862HDD-2#PBF is a half-duplex RS485/RS422 transceiver in an 8-lead DFN package. It operates on a 3V to 5.5V supply and supports data rates up to 20Mbps or low EMI 250kbps. The device features ±60V overvoltage fault protection on interface pins during all modes, including power-down. It provides ±15kV ESD protection on interface pins and ±8kV on other pins. The receiver offers an extended common mode range of ±25V with guaranteed failsafe operation. Operating temperature range is -40°C to 125°C.

Drivers, Receivers, Transceivers Feature Summary

• Provides ±60V overvoltage fault protection on data transmission lines across all operational states.
• Features enhanced ESD protection rated at ±15kV HBM on interface pins without latchup.
• Supports flexible digital interfaces with logic-selectable high-speed or low EMI data rates.
• Ensures reliable communication through extended common mode range and full failsafe receiver operation.

Drivers, Receivers, Transceivers Applications

• Supervisory Control and Data Acquisition (SCADA)
• Industrial Control and Instrumentation Networks
• Automotive and Transportation Electronics

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against official Analog Devices documentation to confirm package type and temperature grade. Ensure the component matches the required duplex configuration and data rate specifications for the target application design.

Drivers, Receivers, Transceivers Selection Notes

Select this model for applications requiring robust fault tolerance in electrically noisy environments. The half-duplex architecture suits bidirectional communication needs. Consider the thermal performance of the DFN package when designing PCB layouts for high ambient temperatures.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC2862/LTC2863/LTC2864/LTC2865 family of low-power transceivers. It shares pin compatibility with legacy parts like the LT1785 and LT1791, facilitating direct upgrades in existing designs requiring higher fault protection capabilities.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2862IDD-2#PBF

Drivers, Receivers, Transceivers FAQ

What is the maximum data rate supported by the LTC2862HDD-2#PBF?

The device supports a maximum data rate of 20Mbps in high-speed mode or 250kbps in low EMI slew-rate limited mode.

How does the device handle open or shorted bus lines?

It guarantees failsafe receiver operation, forcing the output to a logic 1 state if the differential input voltage is within the failsafe threshold range for more than approximately 3µs.

Is the device protected against ground loop voltages?

Yes, it features an extended common mode input voltage range of ±25V, allowing operation in the presence of large ground loop voltages.