LTC2861CGN#PBF

Drivers, Receivers, Transceivers Overview

The LTC2861CGN#PBF is a full-duplex, low-power 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 and includes a low-EMI mode limited to 250kbps via the SLO pin. It provides ±15kV HBM ESD protection, current-limited drivers, thermal shutdown, and guaranteed failsafe receiver operation over the entire common mode range of -7V to +12V. The CGN variant operates from 0°C to 70°C in a 16-lead SSOP package.

Drivers, Receivers, Transceivers Feature Summary

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

Drivers, Receivers, Transceivers Applications

• Level translator for serial communication interfaces
• Backplane transceiver systems
• Multi-node RS485/RS422 networks requiring integrated line termination

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required temperature grade and package type. The CGN designation indicates the commercial temperature range and SSOP packaging. Confirm RoHS compliance status through official manufacturer documentation prior to procurement.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring full-duplex communication with integrated line termination capabilities. Ensure the system voltage aligns with the specified 5V supply range. Consider the SLO pin functionality if electromagnetic interference mitigation is required for lower data rates.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC2859/LTC2861 family of 20Mbps RS485/RS422 transceivers. The LTC2861 specifically denotes the full-duplex version, whereas the LTC2859 is half-duplex. Both share similar electrical characteristics but differ in driver output configurations.

Drivers, Receivers, Transceivers Replacement Considerations

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