LTC2861CDE#PBF

Drivers, Receivers, Transceivers Overview

The LTC2861CDE#PBF is a full-duplex RS485/RS422 transceiver operating on a 5V supply. It features a maximum data rate of 20Mbps and includes an integrated, logic-selectable 120Ω termination resistor. The device supports up to 256 nodes per bus with one-eighth unit load input impedance. It provides enhanced ESD protection rated at ±15kV (HBM) without latchup. Key electrical parameters include a differential driver output voltage of 1.5V to VCC and receiver input resistance exceeding 96kΩ. The component operates within a temperature range of 0°C to 70°C and is housed in a 12-lead 4mm × 3mm plastic DFN package.

Drivers, Receivers, Transceivers Feature Summary

• Integrated switchable 120Ω termination resistor controlled by the TE pin
• Logic-selectable low-EMI mode limiting data rate to 250kbps via SLO pin
• Guaranteed failsafe receiver operation ensuring high output during floating or shorted inputs
• Current-limited drivers with thermal shutdown protection against excessive power dissipation

Drivers, Receivers, Transceivers Applications

• Level translator applications requiring RS485/RS422 compatibility
• Backplane transceiver systems utilizing full-duplex communication
• Multi-node networks requiring precise line termination management

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature grade. Confirm that the #PBF designation indicates lead-free finish and RoHS compliance as specified in the manufacturer's documentation. Ensure the procurement channel sources directly from authorized distributors to guarantee authenticity and traceability for industrial components.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex communication is required alongside integrated termination capabilities. Compare against half-duplex alternatives like the LTC2859 if bidirectional single-wire transmission suffices. Consider the C-grade temperature range suitability for standard commercial environments versus I-grade options for extended industrial specifications.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC2859/LTC2861 family of low-power RS485/RS422 transceivers. It shares core architectural features with the half-duplex LTC2859 but differs in providing separate transmit and receive channels. The family emphasizes low power consumption and robust fault protection for reliable serial communication in noisy environments.

Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.