LTC2852IDD#PBF

Drivers, Receivers, Transceivers Overview

The LTC2852IDD#PBF is a full-duplex RS-485/RS-422 transceiver operating on a 3V to 3.6V supply with a maximum data rate of 20Mbps. It features one driver and one receiver in an 8mm x 8mm DFN-10 package. The device supports up to 256 nodes per bus due to its high input impedance (one-eighth unit load) and includes failsafe logic for floating inputs. Supply current is typically 370µA in receive mode and 450µA in transmit mode, with shutdown current at 5µA max. Operating temperature range is -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex operation with independent driver and receiver control
• High input impedance supporting up to 256 nodes on the bus
• Failsafe receiver guarantees high output state during idle or fault conditions
• Enhanced ESD protection withstands ±15kV human body model

Drivers, Receivers, Transceivers Applications

• Multinode industrial communication networks
• Backplane transceivers requiring low power consumption
• Level translation between different voltage domains
• Bus systems requiring robust fault protection and high node counts

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix IDD#PBF corresponds to the Industrial temperature grade (-40°C to +85°C) and lead-free packaging. Confirm the DFN-10 package dimensions match the design footprint requirements. Ensure the ordering code aligns with the full-duplex configuration distinct from half-duplex variants.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex communication is required alongside low power constraints. The high input impedance makes it suitable for large multinode networks exceeding standard unit load limits. Verify that the 20Mbps data rate meets system timing requirements and that the 3.3V supply voltage is compatible with the host logic levels.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC285x family of low-power RS-485/RS-422 transceivers. Unlike the half-duplex LTC2850, the LTC2852 provides simultaneous transmission and reception capabilities. It shares common features such as thermal shutdown and current limiting with other members of the series but differs in duplex architecture and pin count.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2852CS#PBF: Same function, Commercial temperature grade (0°C to 70°C).

Drivers, Receivers, Transceivers FAQ

How does the LTC2852 handle unconnected bus lines?

The integrated failsafe feature guarantees a logic-high output state when the A and B inputs are floating, shorted together, or terminated but not driven.

What is the maximum number of receivers supported on a single bus?

Due to the one-eighth unit load input impedance, the LTC2852 supports up to 256 nodes per bus in C-grade and I-grade applications.

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

No, the receiver output is internally driven high or low, eliminating the need for external pull-up resistors.