LTC1482CS8#PBF

Drivers, Receivers, Transceivers Overview

The LTC1482CS8#PBF 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 900µA max with the driver enabled and 700µA max when disabled. It includes thermal shutdown protection and glitch-free power-up outputs.

Drivers, Receivers, Transceivers Feature Summary

• Active Low Carrier Detect Output
• Receiver Fail-Safe
• Enhanced ESD Protection
• Thermal Shutdown

Drivers, Receivers, Transceivers Applications

• Battery-Powered RS485/RS422 Applications
• Low Power RS485/RS422 Transceiver
• Level Translator

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant against the datasheet, as the CS8 suffix indicates an SOIC-8 package. Confirm that the commercial temperature range meets your operational requirements. Ensure the ordering information matches the exact part number to avoid discrepancies in pinout or electrical characteristics.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring integrated carrier detection and fail-safe receiver states without external components. Consider the 4Mbps maximum data rate and the 32-transceiver bus limit. Verify that the single 5V supply voltage aligns with your system's power architecture and that the SOIC-8 package fits your PCB layout constraints.

Drivers, Receivers, Transceivers Part Context

The LTC1482 belongs to Analog Devices' family of low power RS-485 transceivers. It is designed to replace older devices by integrating carrier detect functionality directly into the transceiver, reducing the need for additional logic gates or complex circuitry in standard RS-485 network implementations.

Drivers, Receivers, Transceivers Replacement Considerations

LTC1482CMS8

Drivers, Receivers, Transceivers FAQ

How does the Carrier Detect (CD) pin function?

The CD pin is an open-drain output that pulls low when a valid carrier signal is present on the A and B lines. When no carrier is detected, a weak internal pull-up forces the pin high.

What happens to the Receiver Output (RO) when the input is floating?

The receiver fail-safe feature guarantees a high logic state at the RO pin if the A and B inputs are floating, shorted together, or terminated without a signal present.

How is the device placed into shutdown mode?

To enter shutdown mode, both the Driver Enable (DE) and Driver Input/Shutdown (DI/SHDN) pins must be driven low simultaneously. This reduces the supply current to a maximum of 20µA.