LTC2857IDD-1#PBF

Drivers, Receivers, Transceivers Overview

The LTC2857IDD-1#PBF is a low-power, full-duplex RS485/RS422 transceiver operating on a 5V supply. It supports a maximum data rate of 20Mbps with a typical supply current of 660µA in transmit mode and 900µA maximum in receive mode. The device features enhanced ESD protection rated at ±15kV (HBM) on interface pins without latchup. It includes a one-eighth unit load receiver supporting up to 256 nodes per bus and guarantees failsafe operation over the entire common mode range. Thermal shutdown and current-limited drivers protect against excessive power dissipation.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex communication capability with independent driver and receiver control
• Enhanced electrostatic discharge protection withstands ±15kV human body model stress
• High input impedance receiver design allows connection of up to 256 nodes on the bus
• Integrated thermal shutdown and current limiting prevent damage during fault conditions

Drivers, Receivers, Transceivers Applications

• Industrial automation networks requiring robust RS485/RS422 connectivity
• Backplane communication systems in embedded equipment
• Level translation interfaces between logic domains and serial buses

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix IDD-1 corresponds to the industrial temperature grade and DFN-8 package configuration required for your design. Confirm that the #PBF designation indicates lead-free compliance before finalizing procurement orders. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity and traceability.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex operation is necessary for simultaneous transmission and reception. The 20Mbps data rate suits high-speed industrial applications, while the 15kV ESD rating provides resilience in electrically noisy environments. Ensure the system voltage aligns with the specified 5V supply requirement for optimal performance.

Drivers, Receivers, Transceivers Part Context

This device belongs to the LTC285x family of low-power RS485/RS422 transceivers from Analog Devices. It shares architectural similarities with the half-duplex LTC2856 and the enabled-full-duplex LTC2858 variants. The primary distinction lies in its full-duplex topology without separate enable pins, offering a compact solution for bidirectional serial communication.

Drivers, Receivers, Transceivers Replacement Considerations

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