LTC2861IDE#PBF

Drivers, Receivers, Transceivers Overview

The LTC2861IDE#PBF is a full-duplex RS485/RS422 transceiver operating on a 5V supply. It features an integrated, logic-selectable 120Ω termination resistor and supports up to 256 nodes per bus with high input impedance. The device operates at a maximum data rate of 20Mbps in normal mode and 250kbps in low-EMI mode. It provides enhanced ESD protection of ±15kV HBM, guaranteed failsafe receiver operation, and current-limited drivers with thermal shutdown. The component is housed in a 12-pin DFN package and functions within an industrial temperature range of -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Integrated switchable 120Ω termination resistor controlled by the TE pin
• Logic-selectable low-EMI 250kbps slew rate limiting mode
• Guaranteed failsafe receiver output under floating or shorted input conditions
• High input impedance supporting up to 256 nodes on the bus

Drivers, Receivers, Transceivers Applications

• Level translator for RS485 communication networks
• Backplane transceiver applications
• Multi-node network configurations requiring end termination

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature grade. Confirm that the #PBF designation indicates lead-free finish compliance. Ensure the selected variant matches the required operational environment and interface specifications before procurement.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex communication is required alongside integrated line termination. Compare against the half-duplex LTC2859 if only single-direction signaling is needed. Consider the SLO pin functionality for EMI-sensitive environments where reduced data rates are acceptable.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC2859/LTC2861 family of low-power RS485/RS422 transceivers. It shares core electrical characteristics with the LTC2859 but differs in providing separate driver and receiver channels for full-duplex operation. The family includes variants with extended temperature ranges and different package options.

Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers: LTC2859 (Half-Duplex equivalent), LTC2861CGN#PBF (SSOP Package), LTC2861IGN#PBF (Industrial Grade SSOP). Verify pinout compatibility and functional requirements before substitution.