LTC1482CN8

Drivers, Receivers, Transceivers Overview

The LTC1482CN8 is a low power RS-485 transceiver manufactured by Analog Devices Inc. It features an active low carrier detect output and receiver fail-safe functionality. The device operates on a single 5V supply with a maximum data rate of 4Mbps. Supply current is 700µA max with the driver disabled, 900µA max in driver mode without load, and drops to 20µA in shutdown mode. It supports up to 32 transceivers on the bus and withstands –15kV ESD (Human Body Model). The component is housed in an 8-lead PDIP package and operates within a temperature range of 0°C to +70°C.

Drivers, Receivers, Transceivers Feature Summary

• Active Low Carrier Detect Output
• Receiver Fail-Safe for Floating or Shorted Inputs
• Enhanced ESD Protection

Drivers, Receivers, Transceivers Applications

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

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix CN8 corresponds to the commercial grade PDIP-8 package variant. Confirm that the manufacturer designation matches Analog Devices Inc. specifications before finalizing procurement orders to ensure compatibility with existing system designs.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a low power RS-485 interface with integrated carrier detection is required. Ensure the application environment remains within the 0°C to +70°C operating temperature range. Verify that the 5V single supply voltage aligns with the target system power architecture.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC1482 series of low power RS-485 transceivers. It is available in multiple package options including MSOP, SO, and PDIP formats. The CN8 suffix specifically denotes the commercial temperature grade version packaged in an 8-lead plastic dual in-line package.

Drivers, Receivers, Transceivers Replacement Considerations

LTC1482CS8#PBF

Drivers, Receivers, Transceivers FAQ

How does the Carrier Detect 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. It pulls high via an internal weak pull-up when no carrier is detected.

What happens to the Receiver Output during a fault condition?

The receiver includes a fail-safe feature that forces the RO output high if the A and B inputs are floating, shorted together, or terminated without a signal present.

How is the Shutdown Mode activated?

Shutdown mode is activated by driving both the DE and DI/SHDN pins low simultaneously. This reduces the supply current to a maximum of 20µA and three-states all outputs.