LTC2856HMS8-2#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2856HMS8-2#TRPBF is a low-power, half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc. It operates on a single 5V supply and supports a maximum data rate of 250kbps to minimize electromagnetic interference (EMI). 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-grade variants. It includes enhanced ESD protection rated at ±15kV HBM, current-limited drivers with thermal shutdown, and a failsafe receiver that guarantees a high output state during floating or shorted input conditions.

Drivers, Receivers, Transceivers Feature Summary

• Slew-rate limited driver outputs reduce high-frequency EMI emissions for compliant communication
• High input impedance receiver allows connection of up to 256 nodes on a single bus
• Integrated thermal shutdown and current limiting protect against bus contention and faults
• Guaranteed failsafe operation ensures logic-high output when inputs are unconnected

Drivers, Receivers, Transceivers Applications

• Low EMI industrial automation networks
• Building automation and control systems
• Multi-drop sensor interfaces
• Backplane communication links

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging upon purchase. Confirm the H-grade designation matches the required -40°C to +125°C operating temperature range for your application environment. Ensure compatibility with the MSOP-8 package footprint during PCB layout finalization.

Drivers, Receivers, Transceivers Selection Notes

Select this model over the LTC2856-1 variant when EMI reduction is critical, as it limits the data rate to 250kbps. Choose this part if half-duplex communication suffices; otherwise, consider the full-duplex LTC2857 series. Verify that the 5V supply voltage aligns with the system power rails, as the device does not support lower voltage operation.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC285x family of low-power RS-485/RS-422 transceivers. It shares architectural similarities with the LTC2857 and LTC2858 series but is distinct in its half-duplex configuration and slew-rate limited performance profile designed specifically for noise-sensitive environments.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2856HMS8-2#PBF offers identical electrical specifications but utilizes tube packaging instead of tape and reel.