LTC2852IDD#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2852IDD#TRPBF is a full-duplex RS485/RS422 transceiver operating on a 3.3V supply with a maximum data rate of 20Mbps. It features one-eighth unit load receiver input impedance, supporting up to 256 nodes per bus for C- and I-grade devices. The device includes guaranteed failsafe operation, ensuring a high output state during floating or shorted inputs across the entire common mode range. Driver outputs are current-limited with thermal shutdown protection. The IDD suffix indicates an industrial temperature grade ranging from -40°C to +85°C. It is housed in a 10-lead 3mm x 3mm DFN package.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex communication capability with independent driver and receiver control
• High input impedance receiver design allowing connection of up to 256 nodes on a single bus
• Integrated failsafe mechanism that guarantees a logic-high receiver output under fault conditions
• Robust protection against overcurrent and excessive power dissipation via current limiting and thermal shutdown

Drivers, Receivers, Transceivers Applications

• Industrial multinode networks requiring high node density
• Backplane communication systems utilizing RS485 or RS422 standards
• Level translation interfaces between microcontrollers and differential bus lines

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix to confirm the package type and temperature grade. The #TRPBF designation indicates tape and reel packaging with lead-free composition. Confirm the industrial temperature range requirement matches the IDD suffix specifications before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex operation is required alongside high bus loading capacity. The 20Mbps data rate supports high-speed applications within the RS485 standard limits. Ensure the system operates within the specified 3.3V supply voltage range and requires the industrial temperature performance defined by the IDD suffix.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC285x family of low-power transceivers designed for 3.3V operation. Unlike the half-duplex LTC2850, the LTC2852 provides simultaneous transmit and receive paths. It shares core features like high input impedance and failsafe protection with other members of the series but differs in duplex configuration and pinout availability.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2852CS#PBF (Commercial Grade)

Drivers, Receivers, Transceivers FAQ

What is the receiver input impedance of the LTC2852?

The receiver input resistance is greater than 96kΩ for C- and I-grade parts, representing a one-eighth unit load.

How does the failsafe feature operate?

The failsafe feature guarantees a high output state at the RO pin when the A and B inputs are floating, shorted, or terminated but not driven.

What is the maximum data rate supported?

The device supports a maximum data rate of 20Mbps.