LTC2858HDD-1#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2858HDD-1#TRPBF is a low-power, full-duplex RS485/RS422 transceiver manufactured by Analog Devices Inc. It operates on a single 5V supply and supports maximum data rates of 20Mbps. The device features enhanced ESD protection capable of withstanding ±15kV (human body model) without latchup or damage. It incorporates a one-eighth unit load receiver input impedance, allowing for up to 256 nodes per bus in C and I-grade variants. Key electrical parameters include a maximum receive mode supply current of 900µA, a shutdown current of 5µA maximum, and an operating temperature range extending up to 125°C for H-grade parts. The component is housed in a 10-lead 3mm × 3mm DFN package.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex communication capability with independent driver and receiver channels
• Enhanced electrostatic discharge protection rated at ±15kV human body model
• High input impedance receiver supporting extensive node counts on the bus
• Integrated thermal shutdown and current limiting for fault protection

Drivers, Receivers, Transceivers Applications

• Low power RS485/RS422 transceiver networks
• Level translator interfaces
• Backplane transceiver systems

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging when sourcing this component. Confirm the temperature grade designation matches the required operational environment, as performance specifications vary between commercial, industrial, and automotive grades. Ensure the package type corresponds to the intended PCB layout requirements.

Drivers, Receivers, Transceivers Selection Notes

Select the LTC2858 variant specifically for full-duplex applications requiring separate transmit and receive paths. Choose the -1 suffix for high-speed designs requiring 20Mbps data rates. Consider the -2 suffix if lower electromagnetic interference emissions are critical, as it limits the slew rate and maximum data rate to 250kbps. Verify that the chosen temperature grade meets the system's environmental constraints.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC285x family of low-power RS485/RS422 transceivers from Analog Devices. The family includes half-duplex models like the LTC2856 and non-enable full-duplex models like the LTC2857. The LTC2858 distinguishes itself by providing enable controls for both the driver and receiver within a full-duplex architecture, offering greater flexibility in bus management compared to the standard LTC2857.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2858HDD-1#PBF