LTC2857CDD-1#PBF

Drivers, Receivers, Transceivers Overview

The LTC2857CDD-1#PBF is a low-power, full-duplex RS485/RS422 transceiver operating on a 5V supply. It supports a maximum data rate of 20Mbps or a slew-rate limited 250kbps mode for low EMI. The receiver features a one-eighth unit load, supporting up to 256 nodes per bus (C and I grades). Key electrical parameters include a typical supply current of 660µA in transmit mode and 900µA maximum in receive mode. The device offers ±15kV HBM ESD protection, thermal shutdown, and current-limited drivers.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex operation with independent driver and receiver channels
• Enhanced ESD protection withstands ±15kV human body model without latchup
• Guaranteed failsafe receiver output ensures high state during floating inputs
• Thermal shutdown and current limiting protect against excessive power dissipation

Drivers, Receivers, Transceivers Applications

• Low power RS485/RS422 transceivers
• Level translators
• Backplane transceivers

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature grade. Confirm that the component meets RoHS compliance standards as indicated in the product documentation. Ensure the source provides valid traceability for the Analog Devices Inc. manufacturer designation before finalizing acquisition.

Drivers, Receivers, Transceivers Selection Notes

Select this part for applications requiring full-duplex communication over RS485 or RS422 networks. It is suitable for systems needing high node counts due to the one-eighth unit load receiver input. Consider the 20Mbps speed for high-throughput needs or the 250kbps slew-limited variant if EMI reduction is critical.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC285x family of low-power transceivers from Analog Devices. It shares architectural similarities with half-duplex variants like the LTC2856 but provides simultaneous transmission and reception capabilities. The DFN-8 package allows for compact PCB layouts in space-constrained industrial designs.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2857CDD-1#TRPBF