LTC2861CDE#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2861CDE#TRPBF is a full-duplex RS485/RS422 transceiver operating on a 5V supply. It features a logic-selectable 120Ω termination resistor and supports up to 256 nodes per bus with one-eighth unit load input impedance. The device offers a maximum data rate of 20Mbps in normal mode and 250kbps in low-EMI slew-limited mode. It includes failsafe receiver operation, current-limited drivers, and thermal shutdown protection. The component operates within a commercial 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 250kbps operating mode via SLO pin
• 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 applications
• Backplane transceiver systems
• Multi-node RS485 networks requiring end termination control

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging for automated assembly. Confirm the C-grade designation matches the required 0°C to 70°C commercial operating temperature range for the target environment. Ensure the DE package footprint aligns with the PCB layout specifications.

Drivers, Receivers, Transceivers Selection Notes

Select this part for full-duplex communication requirements where integrated line termination simplifies network configuration. The C-grade variant is suitable for standard commercial environments. Consider the H-grade if extended temperature operation up to 105°C is necessary. Verify that the 5V supply voltage requirement fits the system power architecture.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC2859/LTC2861 family of low-power RS485/RS422 transceivers. The LTC2861 specifically provides full-duplex capability with separate driver and receiver outputs, distinguishing it from the half-duplex LTC2859. Both share identical electrical characteristics and feature sets regarding termination and EMI control.

Drivers, Receivers, Transceivers Replacement Considerations

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