LTC2857IMS8-2#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2857IMS8-2#TRPBF is a low-power, full-duplex RS485/RS422 transceiver operating on a 5V supply. It supports a maximum data rate of 250kbps with slew rate limiting to minimize EMI emissions. The device features a one-eighth unit load receiver input resistance exceeding 96kΩ, enabling support for up to 256 nodes per bus in C and I grades. Enhanced ESD protection withstands ±15kV (HBM) without latchup. It includes current-limited drivers, thermal shutdown, and guaranteed failsafe operation ensuring a high output state during floating or shorted inputs.

Drivers, Receivers, Transceivers Feature Summary

• Slew rate limited driver outputs reduce high-frequency EMI emissions for compliant communication at lower speeds.
• High input impedance receiver allows connection of up to 256 nodes on the bus without excessive loading.
• Integrated thermal shutdown and current limiting protect against bus contention and fault conditions.

Drivers, Receivers, Transceivers Applications

• Low EMI industrial communication networks
• Multi-drop RS485 sensor buses
• Backplane transceivers requiring reduced signal edge rates

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm the IMS8 designation corresponds to the 8-lead MSOP package variant. Ensure the grade matches the required temperature range specifications for the intended deployment environment.

Drivers, Receivers, Transceivers Selection Notes

Select this model over the -1 variant when electromagnetic interference reduction is critical. The 250kbps limit is suitable for applications where distance or noise immunity outweighs the need for higher throughput. Verify that the full-duplex architecture fits the system topology requirements compared to half-duplex alternatives.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC285x family of low-power transceivers. It shares architectural similarities with the LTC2856 and LTC2858 series but is distinct in its full-duplex configuration and specific speed grading. The family emphasizes robust protection features and high node count capabilities across various industrial standards.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2857IMS8-2#PBF is the tube-packaged equivalent of this part number.