LTC2857IDD-1#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2857IDD-1#TRPBF is a low-power, full-duplex RS485/RS422 transceiver manufactured by Analog Devices Inc. It operates on a single 5V supply and supports a maximum data rate of 20Mbps. The device features a one-eighth unit load receiver input resistance exceeding 96kΩ, enabling support for up to 256 nodes per bus. It provides enhanced ESD protection rated at ±15kV (HBM) without latchup or damage. The component includes current-limited drivers and thermal shutdown protection to prevent excessive power dissipation during bus contention or faults. It is housed in an 8-lead DFN package.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex communication capability with independent driver and receiver channels
• High input impedance receiver supporting extensive network node density
• Robust fault protection including current limiting and thermal shutdown
• Enhanced electrostatic discharge immunity on interface pins

Drivers, Receivers, Transceivers Applications

• Low power RS485/RS422 transceivers
• Level translator circuits
• Backplane transceiver systems

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the IDD designation corresponds to the industrial temperature grade range (-40°C to +85°C). Ensure compatibility with the required 8-lead DFN footprint during procurement planning. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and supply chain integrity.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring full-duplex operation at speeds up to 20Mbps. The high input impedance makes it suitable for multi-drop networks requiring many nodes. Consider the thermal performance and package size constraints associated with the DFN-8 form factor. Verify that the 5V supply voltage aligns with the system design requirements before finalizing the selection.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC2857 family of low-power RS485/RS422 transceivers. It shares architectural similarities with the half-duplex LTC2856 series but offers simultaneous transmit and receive capabilities. The device is designed to meet TIA/EIA-485-A specifications while providing superior noise immunity and fault protection compared to standard transceivers.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2857IDD-1#PBF