LTC2851MPS8#PBF

Drivers, Receivers, Transceivers Overview

The Analog Devices LTC2851MPS8#PBF is a low-power, full-duplex RS-485/RS-422 transceiver operating on a single 3.3V supply (3V to 3.6V). It supports data rates up to 20Mbps with typical receive mode current of 370µA and transmit mode current of 450µA. The device features a high-input impedance receiver representing one-eighth unit load, supporting up to 256 nodes per bus. It includes failsafe logic guaranteeing a high output state for floating or shorted inputs, enhanced ESD protection up to ±15kV HBM, and thermal shutdown. The component is housed in an 8-lead MSOP package.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex operation with independent driver and receiver channels
• High input impedance receiver supporting up to 256 nodes on the bus
• Integrated failsafe mechanism ensuring high output during idle or fault conditions
• Robust protection against overcurrent, thermal overload, and electrostatic discharge

Drivers, Receivers, Transceivers Applications

• Low power RS-485/RS-422 network interfaces
• Level translation between different voltage domains
• Backplane communication systems

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific temperature grade suffix 'MP' corresponds to the military range (-55°C to 125°C) required for your application environment. Confirm the 'MS8' package designation matches your PCB footprint requirements. Ensure the '#PBF' lead-free status aligns with your manufacturing compliance standards before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select this part when full-duplex communication is necessary alongside low power consumption constraints. The MP grade is suitable for extreme temperature environments where standard industrial or commercial grades may fail. Consider the 20Mbps limit and ensure it meets your system's bandwidth requirements compared to higher-speed alternatives.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC285x family of low-power transceivers from Analog Devices. While the LTC2850 offers half-duplex functionality and the LTC2852 provides full-duplex with enable pins, the LTC2851 specifically delivers full-duplex performance without dedicated enable controls, simplifying interface logic design for applications requiring simultaneous transmission and reception.

Drivers, Receivers, Transceivers Replacement Considerations

Direct functional substitutes within the same series include the LTC2851IS8#PBF (Industrial grade) and LTC2851HMS8#PBF (Automotive grade), which share identical electrical characteristics but differ in operating temperature ranges. Verify that the replacement part's package type matches the existing board layout.