LTC1690CMS8#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC1690CMS8#TRPBF is a low-power differential driver and receiver pair compatible with RS-485 and RS-422 standards, housed in an 8-lead MSOP package. It operates on a single 5V supply (4.75V to 5.25V) with a maximum supply current of 600µA under no-load conditions. The device supports data rates up to 5Mbps and features a fail-safe receiver that guarantees a high output state when inputs are open or shorted. Driver outputs include thermal shutdown protection limiting short-circuit current to 250mA. The component provides –7V to 12V common mode range and meets –15kV ESD protection via the Human Body Model.

Drivers, Receivers, Transceivers Feature Summary

• Fail-safe receiver ensures a known high logic state when inputs are floating, shorted, or terminated without a signal.
• Thermal shutdown circuit protects against excessive power dissipation by forcing driver outputs into a high impedance state during faults.
• Glitch-free driver outputs permit live insertion or removal of the transceiver without latchup or damage.
• High ESD tolerance at driver and receiver pins eliminates the need for external suppressors in many applications.

Drivers, Receivers, Transceivers Applications

• Battery-powered RS-485/RS-422 communication systems
• Low power RS-485/RS-422 transceivers
• Level translators between different voltage domains
• Line repeaters for extended cable distances

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging rather than tube packaging. Confirm the 'C' designation corresponds to the commercial temperature range of 0°C to 70°C. Ensure the MSOP-8 footprint matches the target PCB design constraints before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select this component for full-duplex applications requiring separate driver and receiver paths within a compact surface-mount form factor. Consider the 5V supply requirement and 600µA quiescent current when evaluating power budgets. Verify compatibility with existing bus termination strategies and ensure the –7V to 12V common mode range aligns with the system's ground difference requirements.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC1690 family of differential driver/receiver pairs designed for robust serial communication. It serves as a pin-compatible alternative to legacy components like the SN75179 and LTC490. The series focuses on providing reliable data transmission over twisted-pair cables while maintaining low power consumption suitable for battery-operated industrial equipment.

Drivers, Receivers, Transceivers Replacement Considerations

The LTC490 is a pin-compatible differential driver and receiver pair from the same manufacturer. Designers should verify that the replacement maintains identical pinout configurations and electrical characteristics relative to the original design specifications.