LTC2857CMS8-2#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2857CMS8-2#TRPBF is a full-duplex RS485/RS422 transceiver operating on a 5V supply. It supports a maximum data rate of 250kbps with slew-rate limiting for low EMI applications. The device features a one-eighth unit load receiver, 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
• High input impedance allows connection of up to 256 nodes per bus
• Guaranteed failsafe receiver operation across the entire common mode range
• Enhanced ESD protection prevents damage from ±15kV human body model events

Drivers, Receivers, Transceivers Applications

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

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging when sourcing this component. Confirm the manufacturer designation matches Analog Devices Inc. or its predecessor Linear Technology. Ensure the package type corresponds to the 8-lead MSOP format specified for this part number variant.

Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring full-duplex communication with strict electromagnetic interference constraints. The 250kbps data rate and slew-rate limiting are suitable for long cable runs where signal integrity is critical. Verify that the commercial temperature grade meets the environmental requirements of the target application.

Drivers, Receivers, Transceivers Part Context

This device belongs to the LTC285x family of rugged interface transceivers. It shares architectural similarities with the half-duplex LTC2856 and the enabled full-duplex LTC2858. The primary distinction lies in its fixed full-duplex configuration without independent enable pins for the driver or receiver sections.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2857IMS8-2#PBF

Drivers, Receivers, Transceivers FAQ

What is the maximum data rate for the LTC2857CMS8-2?

The maximum data rate is 250kbps due to the slew-rate limited driver design intended for low EMI.

How many nodes can be supported on a single bus?

The receiver has a one-eighth unit load, supporting up to 256 nodes per bus for C and I grade parts.

Does the device provide failsafe operation?

Yes, it guarantees a high output state under conditions of floating or shorted inputs across the entire common mode range.