LTC1689CS#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC1689CS#TRPBF is a high-speed RS-485 quad differential line driver manufactured by Analog Devices Inc. It operates from a single 3V or 5V supply and supports data rates up to 100Mbps at 5V, or 50Mbps at 3V. The device features four independent drivers with guaranteed propagation delay of 8ns (–4ns) over the full operating temperature range. It includes hot swap capability, maintaining high impedance outputs during power-off or three-state conditions. The component is housed in a 16-lead plastic SOIC package.

Drivers, Receivers, Transceivers Feature Summary

• Hot Swap capable design maintains backplane data integrity during board insertion and removal
• Driver outputs maintain high impedance state when powered off or in three-state mode
• Integrated short-circuit protection reduces output current significantly during bus contention
• Thermal shutdown circuitry protects against excessive power dissipation

Drivers, Receivers, Transceivers Applications

• High speed RS485 twisted-pair communication links
• High speed backplane point-to-point and multipoint drivers
• Complementary clock distribution systems
• STS-1/OC-1 data transmission interfaces
• SCSI driver applications

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging configuration. Confirm the CS suffix corresponds to the commercial temperature range of 0°C to 70°C. Ensure compatibility with standard 16-lead SOIC footprint requirements for your PCB layout.

Drivers, Receivers, Transceivers Selection Notes

Select this model when four independent drivers are required with simultaneous enable control limitations compared to the LTC1688. Verify that the application requires hot swap functionality and high-speed operation exceeding standard RS-485 limits. Ensure the system voltage aligns with the 3V or 5V single supply capability.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC1688/LTC1689 family of ultrahigh speed differential bus drivers. It is pin-compatible with the older LTC486 and LTC487 series but offers significantly higher data rate performance. The primary distinction within the family is the enable logic structure between the two variants.

Drivers, Receivers, Transceivers Replacement Considerations

LTC1688CS#TRPBF serves as a functional substitute with identical pinout but different enable logic allowing all four drivers to be enabled simultaneously.