LTC487CN#PBF

Drivers, Receivers, Transceivers Overview

The LTC487CN#PBF 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 a typical supply current of 110µA. The device provides four differential drivers with three-state outputs, supporting data rates up to 10Mb/s. It offers an extended common mode range from -7V to +12V and includes thermal shutdown protection. The component is housed in a 16-lead plastic DIP package and is rated for commercial operation between 0°C and 70°C.

Drivers, Receivers, Transceivers Feature Summary

• Low power CMOS design significantly reduces energy 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 temperature reaches critical levels.
• Power-up/down glitch-free driver outputs permit live insertion or removal of the package without disrupting the bus.
• Pin compatible with industry standard parts such as SN75174, DS96174, µA96174, and DS96F174.

Drivers, Receivers, Transceivers Applications

• Multipoint data transmission systems adhering to RS485 standards
• Level translation between RS232 and RS485 protocols
• Industrial communication networks requiring extended common mode range

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix to confirm the package type and temperature range. The CN suffix indicates a 16-lead Plastic DIP package suitable for commercial temperatures (0°C to 70°C). Ensure compatibility with existing PCB footprints and soldering profiles for through-hole mounting. Cross-reference the datasheet revision to confirm electrical characteristics match the design requirements.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring multiple differential drivers on a single chip with minimal power consumption. The wide common mode range allows for significant ground potential differences between devices on the bus. Consider the thermal shutdown feature for environments prone to bus contention or short circuits. Verify that the required data rate does not exceed the specified limits for the chosen cable length and quality.

Drivers, Receivers, Transceivers Part Context

The LTC487 belongs to Analog Devices' family of low power RS485/RS422 drivers. It serves as a direct replacement for legacy bipolar drivers like the SN75174, offering improved power efficiency without sacrificing performance. The device is designed for robust operation in noisy industrial environments, providing reliable data transmission over twisted pair cables.

Drivers, Receivers, Transceivers Replacement Considerations

The LTC487CN#PBF is pin-compatible with the SN75174, DS96174, µA96174, and DS96F174. When substituting these parts, verify that the new component's power consumption and thermal characteristics meet the system requirements. Ensure that the replacement part supports the same voltage range and operating temperature specifications.