LTC2862CDD-2#PBF

Drivers, Receivers, Transceivers Overview

The LTC2862CDD-2#PBF is a half-duplex RS485/RS422 transceiver manufactured by Analog Devices Inc. It operates on a 3V to 5.5V supply voltage and supports a maximum data rate of 250kbps in slew-rate limited mode. The device features ±60V fault protection on the transmission lines, an extended common mode range of ±25V, and ±15kV ESD protection on interface pins. Packaged in an 8-lead DFN (3mm × 3mm) with an exposed pad connected to PCB ground, it includes current-limited drivers and thermal shutdown.

Drivers, Receivers, Transceivers Feature Summary

• Protected from overvoltage line faults up to ±60V during all modes of operation
• Guaranteed failsafe receiver operation with fully balanced differential thresholds for low duty cycle distortion
• Enhanced ESD protection allowing ±15kV withstand on interface pins without latchup
• High input impedance supporting up to 256 nodes on the bus

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 CDD-2 against official documentation to confirm the package type, temperature grade, and data rate variant. Ensure compatibility with existing board layouts as this component is pin-compatible with LT1785 and LT1791. Confirm availability status through authorized distributors as manufacturing statuses may change.

Drivers, Receivers, Transceivers Selection Notes

Select this model when a half-duplex RS485/RS422 interface is required with robust fault protection. The 250kbps slew-rate limited mode is suitable for reducing electromagnetic interference in noisy environments. Verify that the logic supply requirements match the system's digital interface levels, noting that this specific part lacks a separate VL pin compared to the LTC2865.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC2862/LTC2863/LTC2864/LTC2865 family of low-power transceivers. The 'LTC2862' designation indicates a half-duplex device, while the '-2' suffix specifies the 250kbps data rate variant. The 'CDD' code identifies the 8-lead plastic DFN package with a 0°C to 70°C operating temperature range.

Drivers, Receivers, Transceivers Replacement Considerations

Publicly confirmed pin-compatible replacements include the LT1785 and LT1791. Other family members such as the LTC2862-1 offer higher data rates but lack the specific 250kbps slew-limiting feature.