LTC2851IMS8#PBF

Drivers, Receivers, Transceivers Overview

The LTC2851IMS8#PBF is a full-duplex RS-485/RS-422 transceiver manufactured by Analog Devices. It operates on a single 3V to 3.6V supply and supports data rates up to 20Mbps. The device features a one-eighth unit load receiver input resistance exceeding 96kΩ, enabling support for up to 256 nodes per bus in C-grade and I-grade configurations. It includes enhanced ESD protection rated at ±15kV (human body model) and guaranteed failsafe operation ensuring a high output state during floating or shorted inputs. The component is housed in an 8-lead MSOP package.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex architecture with independent driver and receiver channels
• High input impedance supporting extensive multinode network topologies
• Integrated thermal shutdown and current-limited outputs for fault protection
• Glitch-free power-up and power-down driver outputs

Drivers, Receivers, Transceivers Applications

• Industrial automation and control systems
• Building automation networks
• Multidrop communication buses
• Level translation interfaces

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix IMS8 corresponds to the 8-lead MSOP package and the #PBF designation indicates lead-free compliance. Confirm the temperature grade 'I' matches the required industrial operating range of -40°C to +85°C. Ensure the ordering information aligns with the manufacturer's current documentation before finalizing procurement specifications.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex communication is required alongside low power consumption. The high input impedance makes it suitable for applications requiring many nodes on a single bus segment. Verify that the 20Mbps maximum data rate meets system timing requirements and that the 3.3V supply voltage is compatible with the host logic levels.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC285x family of low-power transceivers designed for 3.3V operation. While the LTC2850 provides half-duplex functionality and the LTC2852 adds enable pins, the LTC2851 offers full-duplex performance without dedicated enable controls. The family shares common electrical characteristics regarding ESD protection and failsafe behavior.

Drivers, Receivers, Transceivers Replacement Considerations

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