LTC485CS8#PBF

Drivers, Receivers, Transceivers Overview

The LTC485CS8#PBF is a low-power RS-485 interface transceiver manufactured by Analog Devices Inc. It operates on a single 5V supply (4.75V to 5.25V) and supports data rates up to 2.5Mb/s. The device features one driver and one receiver with three-state outputs, housed in an 8-lead SOIC package. Typical supply current is 300μA when enabled and 500μA otherwise. It provides a common mode range of –7V to 12V, thermal shutdown protection, and fail-safe receiver inputs that guarantee a high output state when inputs are open.

Drivers, Receivers, Transceivers Feature Summary

• Low power CMOS design for multipoint data transmission
• Extended common mode range from -7V to 12V
• Thermal shutdown prevents excessive power dissipation during faults
• Fail-safe receiver guarantees high output when inputs are left open

Drivers, Receivers, Transceivers Applications

• RS-485 multipoint communication networks
• RS-422 point-to-point or multi-drop links
• Level translation applications requiring extended common mode range

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix #PBF indicates lead-free finish and RoHS compliance. Confirm the S8 package designation matches the required surface mount footprint. Ensure the temperature grade corresponds to commercial specifications for the intended operating environment.

Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring low quiescent current and robust fault protection. It is suitable for systems needing a wide common mode voltage range relative to ground differences between devices. Consider pin-compatible alternatives if higher speed or different supply voltages are required.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC485 family of low-power RS-485/RS-422 transceivers. It is designed as a cost-effective solution for industrial communication buses where power consumption and noise immunity are critical factors. The device maintains compatibility with standard bipolar counterparts while offering significant power savings.

Drivers, Receivers, Transceivers Replacement Considerations

LTC486/LTC487 offer quad drivers/receivers. LT1785 provides ±60V fault protection. LTC1485 supports higher speeds up to 10Mb/s. Verify pinout and electrical characteristics before substitution.