LTC2856IMS8-1#PBF

Drivers, Receivers, Transceivers Overview

The Analog Devices LTC2856IMS8-1#PBF is a low-power, half-duplex RS485/RS422 transceiver operating on a 5V supply. It supports a maximum data rate of 20Mbps and features a one-eighth unit load receiver input resistance exceeding 96kΩ, enabling up to 256 nodes per bus. The device includes enhanced ESD protection rated at ±15kV HBM, current-limited drivers, and thermal shutdown. It operates within an industrial temperature range of –40°C to +85°C and is housed in an 8-lead MSOP package.

Drivers, Receivers, Transceivers Feature Summary

• Enhanced ESD protection withstands ±15kV human body model without latchup or damage
• High input impedance receiver supports up to 256 nodes on the bus
• Guaranteed failsafe receiver operation ensures high output state during floating or shorted inputs
• Current-limited drivers and thermal shutdown prevent excessive power dissipation

Drivers, Receivers, Transceivers Applications

• Low power RS485/RS422 transceivers
• Level translator applications
• 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 for the intended manufacturing process. Ensure the datasheet version aligns with the design specifications before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring half-duplex communication with high node density. The 20Mbps data rate suits high-speed serial links, while the low operating current benefits battery-powered systems. Verify that the 8-lead MSOP package fits the available PCB footprint constraints.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC2856 series of rugged RS485/RS422 transceivers. It shares functional similarities with the LTC2857 and LTC2858 families but is distinct as a half-duplex device. The 'I' suffix denotes the industrial temperature range, differentiating it from commercial or automotive grades.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2856CMS8-1#PBF

Drivers, Receivers, Transceivers FAQ

What is the receiver input resistance?

The receiver input resistance is guaranteed to be greater than 96kΩ in receive mode or unpowered, representing a one-eighth unit load.

How does the device handle bus contention?

Excessive power dissipation caused by bus contention is prevented by current limiting all outputs and by thermal shutdown.

What is the maximum ESD rating?

The parts can withstand ±15kV (human body model) on the transceiver interface pins without latchup or damage.