LTC1482CS8#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC1482CS8#TRPBF is a low power RS-485 transceiver manufactured by Analog Devices Inc. It operates on a single 5V supply and supports data rates up to 4Mbps. The device features an active low carrier detect output, receiver fail-safe for floating or shorted inputs, and enhanced ESD protection rated at -15kV (HBM). Supply current is 700µA max with the driver disabled and 900µA max in driver mode without load. Shutdown quiescent current is 20µA max. It includes thermal shutdown protection and glitch-free outputs during power-up/down.

Drivers, Receivers, Transceivers Feature Summary

• Active low carrier detect output allows multiple transceivers to share a common line and detects cable insertion or removal.
• Guaranteed high receiver output state when inputs are floating, shorted, or terminated without a signal present.
• Enhanced ESD protection withstands -15kV human body model and IEC-1000-4-2 levels without latchup or damage.
• Thermal shutdown circuit forces driver outputs to high impedance to prevent excessive power dissipation during faults.

Drivers, Receivers, Transceivers Applications

• Battery-powered RS-485/RS-422 communication systems
• Low power industrial RS-485 networks
• Level translation between logic domains

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging rather than tube packaging. Confirm the temperature grade matches the application requirements, as the CS8 variant denotes commercial range. Ensure the component source is authorized to guarantee authenticity and compliance with RoHS standards.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring integrated carrier detection to simplify bus management. The low supply current makes it suitable for battery-operated devices where power conservation is critical. Verify that the 4Mbps data rate meets the system's throughput requirements and that the SOIC-8 package fits the PCB layout constraints.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC1482 family of low power RS-485 transceivers. It is functionally similar to the LTC1482CS8 but differs in packaging format. The family provides robust fault protection and fail-safe features for reliable serial communication in noisy environments.

Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs before considering alternative components from other manufacturers.

Drivers, Receivers, Transceivers FAQ

How does the Carrier Detect (CD) pin behave when no signal is present?

When no carrier is present, the weak internal pull-up pulls the CD output high. This also forces the Receiver Output (RO) to a high fail-safe state if the device is not in shutdown.

What is the maximum ESD rating for the A and B pins?

The A and B pins are protected against -15kV using the Human Body Model, as well as IEC-1000-4-2 Level 4 (-8kV) contact and Level 3 (-8kV) air discharge.

How is the device placed into shutdown mode?

Both the Driver Enable (DE) and Driver Input/Shutdown (DI/SHDN) pins must be driven low simultaneously to enter shutdown mode, reducing supply current to 20µA max.