LTC2852IS#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2852IS#TRPBF is a full-duplex RS-485/RS-422 transceiver operating on a 3.3V supply with a maximum data rate of 20Mbps. It features a one-eighth unit load receiver supporting up to 256 nodes per bus and guaranteed failsafe operation over the entire common mode range. The device includes current-limited drivers, thermal shutdown protection, and enhanced ESD protection up to ±15kV HBM. Typical supply currents are 370µA in receive mode and 450µA in transmit mode. It operates within an industrial temperature range of –40°C to +85°C and is available in SO-14, MSOP-10, and DFN-10 packages.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex architecture with independent driver and receiver channels
• High input impedance receiver supports up to 256 nodes on the bus
• Integrated thermal shutdown and current limiting for fault protection
• Glitch-free power-up/down driver outputs ensure signal integrity

Drivers, Receivers, Transceivers Applications

• Multinode industrial communication networks
• Backplane transceivers requiring high node density
• Level translation between different voltage domains

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix IS#TRPBF against official Analog Devices documentation to confirm the industrial temperature grade and tape-and-reel packaging configuration. Ensure compatibility with the target PCB footprint for the selected package variant before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex communication is required alongside high bus loading capabilities. The I-grade designation ensures reliable operation across standard industrial environmental conditions. Verify that the system design accommodates the specific pinout requirements of the SO-14 or MSOP-10 package variants.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC285x family of low-power transceivers designed for robust serial communication. It complements half-duplex variants like the LTC2850 by providing simultaneous bidirectional data paths. The series emphasizes low static power consumption while maintaining compliance with TIA/EIA-485-A specifications for long-distance data transmission.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2852CS#TRPBF (Commercial Grade)

Drivers, Receivers, Transceivers FAQ

How does the receiver input resistance affect bus capacity?

The receiver input resistance is greater than 96kΩ, representing a one-eighth unit load. This allows up to 256 nodes to be connected to a single bus without exceeding standard loading limits.

What happens if the inputs are left floating?

The integrated failsafe feature guarantees a logic-high output state when the A and B inputs are shorted, left open, or terminated but not driven, preventing undefined states.

Is external pull-up resistance required for the receiver output?

No, the receiver output is internally driven high or low. External pull-up resistors are not needed for basic operation, though they may be used for specific logic level interfacing.