LTC2856IDD-1#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2856IDD-1#TRPBF is a low-power, half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices. It operates on a single 4.5V to 5.5V supply and supports maximum data rates of 20Mbps. The device features enhanced ESD protection rated at ±15kV (HBM) on interface pins without latchup or damage. It incorporates current-limited drivers and thermal shutdown for fault protection. The receiver input resistance exceeds 96kΩ, representing a one-eighth unit load that supports up to 256 nodes per bus. It includes a failsafe feature guaranteeing a high output state during floating or shorted inputs. The component is housed in an 8-lead DFN package and operates within a temperature range of -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Enhanced ESD protection withstands ±15kV human body model stress on transceiver interface pins without latchup or damage.
• High input impedance exceeding 96kΩ allows connection of up to 256 nodes on the bus while maintaining RS-485 compatibility.
• Integrated thermal shutdown and current limiting protect against excessive power dissipation caused by bus contention or faults.

Drivers, Receivers, Transceivers Applications

• Low EMI industrial communication networks requiring robust signal integrity
• Backplane transceiver systems with high node density requirements
• Level translation interfaces between logic domains and differential bus lines

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging when sourcing this component. Confirm the IDD designation matches the industrial temperature grade (-40°C to +85°C) required for your application environment. Ensure the DFN-8 package footprint aligns with your PCB layout constraints before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select the LTC2856IDD-1#TRPBF for applications requiring half-duplex communication at speeds up to 20Mbps. Choose this variant over slew-rate limited models if full-speed data transmission is necessary. Verify that the 3V to 5.5V supply range accommodates your system voltage rails and that the DFN-8 package fits your spatial limitations.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC2856 family of low-power RS-485/RS-422 transceivers. It shares architectural similarities with the LTC2857 and LTC2858 series but is distinct as a half-duplex device. The IDD suffix indicates the industrial temperature grade, differentiating it from commercial (CDD) or high-temperature (HDD) variants within the same functional family.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2856CDD-1#TRPBF offers identical electrical performance in a commercial temperature range. LTC2856HDD-1#TRPBF provides the same functionality extended to automotive temperatures. Cross-reference pinouts and package dimensions to ensure mechanical compatibility during substitution.