LTC487ISW#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC487ISW#TRPBF is a quad low power RS-485 driver manufactured by Analog Devices Inc. It operates on a single 5V supply with a voltage range of 4.75V to 5.25V and features an operating temperature range of -40°C to +85°C. The device provides four differential drivers with three-state outputs, supporting data rates up to 10Mb/s. Key electrical parameters include a typical supply current of 110µA, propagation delays of 28ns typical, and a common mode range of -7V to +12V. It is housed in a 16-lead plastic SO package.

Drivers, Receivers, Transceivers Feature Summary

• Low power CMOS design significantly reduces consumption compared to bipolar counterparts while maintaining ruggedness against overload and ESD damage.
• Thermal shutdown circuit prevents excessive power dissipation by forcing outputs into a high impedance state when internal temperatures exceed safe limits.
• Power-up/down glitch-free driver outputs permit live insertion or removal of the package without disrupting the bus.
• Extended common mode range permits significant ground difference between devices on the bus, meeting RS-485 and RS-422 requirements.

Drivers, Receivers, Transceivers Applications

• Multipoint data transmission systems using RS-485 standards
• RS-422 compliant communication networks
• Level translation between different signaling protocols

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF confirms the tape and reel packaging format required for automated assembly processes. Ensure the ISW variant matches the industrial temperature grade (-40°C to +85°C) and SOIC package dimensions needed for the target PCB layout. Cross-reference the manufacturer part number with official Analog Devices documentation to confirm lead-free finish compliance and RoHS status before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing multipoint serial communication interfaces requiring low quiescent current and extended common mode voltage tolerance. The quad driver configuration supports complex bus topologies, while the thermal protection ensures reliability under fault conditions. Verify that the 10Mb/s data rate capability aligns with system timing requirements and that the 16-lead SO package fits within the available board space constraints.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC487 family of low power RS-485/RS-422 drivers. It serves as a robust interface solution for industrial and commercial applications demanding reliable differential signaling over twisted pair cables. The device integrates multiple drivers into a single package to minimize board area while providing essential protection features like thermal shutdown and glitch-free operation during power transitions.

Drivers, Receivers, Transceivers Replacement Considerations

The datasheet explicitly lists pin compatibility with SN75174, DS96174, µA96174, and DS96F174. These parts may serve as functional replacements if their electrical specifications meet the application's voltage, speed, and temperature requirements. Verify pinout alignment and parameter margins before substituting.