LTC2864CS-2#PBF

Drivers, Receivers, Transceivers Overview

The LTC2864CS-2#PBF is a low-power, full-duplex RS485/RS422 transceiver manufactured by Analog Devices. It operates on a single 3V to 5.5V supply and features ±60V overvoltage fault protection on the data transmission lines during all modes of operation, including power-down. The device supports a maximum data rate of 250kbps with slew-rate limiting for low EMI applications. It includes enhanced ESD protection rated at ±15kV HBM on interface pins and an extended common mode range of ±25V. The component is housed in a 14-lead (150mil) plastic SOIC package and is specified for commercial temperature ranges from 0°C to +70°C.

Drivers, Receivers, Transceivers Feature Summary

• Provides ±60V fault protection on A, B, Y, and Z pins against line faults to ground or power supplies.
• Features fully balanced differential receiver thresholds to ensure low duty cycle distortion and high noise immunity.
• Includes current-limited drivers and thermal shutdown protection to prevent damage during short-circuit conditions.
• Supports up to 256 nodes on the bus due to high input impedance and guaranteed failsafe receiver operation.

Drivers, Receivers, Transceivers Applications

• Supervisory Control and Data Acquisition (SCADA) systems
• Industrial control and instrumentation networks
• Building automation, security systems, and HVAC controls

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix to confirm the package type and temperature grade. The CS-2 designation indicates a 14-lead SOIC package with a commercial operating range. Ensure compatibility with system voltage levels and check for pin-compatible alternatives if supply constraints exist.

Drivers, Receivers, Transceivers Selection Notes

Select this component when ±60V fault tolerance is required for RS485/RS422 communication in electrically noisy environments. The 250kbps data rate suits applications prioritizing low electromagnetic interference over high-speed throughput. Verify that the full-duplex configuration with separate transmit and receive lines meets the network topology requirements.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC2862/LTC2863/LTC2864/LTC2865 family of ruggedized transceivers. The LTC2864 variant specifically offers full-duplex operation with enable pins for both driver and receiver. It serves as a robust alternative to standard transceivers in industrial settings prone to ground loop voltages and electrical surges.

Drivers, Receivers, Transceivers Replacement Considerations

The datasheet notes pin compatibility with LT1785 and LT1791 devices. However, verify that the replacement parts offer equivalent ±60V fault protection and the same 250kbps slew-rate limited performance profile before substitution.