LTC1483IN8#PBF

Drivers, Receivers, Transceivers Overview

The LTC1483IN8#PBF is an ultra-low power RS-485/RS-422 differential line transceiver manufactured by Analog Devices Inc. It operates on a single 5V supply (4.75V to 5.25V) and supports data rates up to 250 kbits/s. The device features one driver and one receiver with three-state outputs, housed in an 8-pin PDIP package. Key electrical characteristics include a typical quiescent current of 80mA when disabled and less than 1mA in shutdown mode. It provides a common-mode range from –7V to 12V, thermal shutdown protection, and I/O pins rated for over –10kV ESD protection.

Drivers, Receivers, Transceivers Feature Summary

• Ultra-low power CMOS design significantly reduces consumption compared to bipolar counterparts while maintaining ruggedness against overload and ESD damage.
• Controlled slew rate driver decreases electromagnetic interference radiated from RS-485 lines and improves signal fidelity on unterminated lines.
• Thermal shutdown circuit prevents excessive power dissipation by forcing driver outputs into a high impedance state during faults or bus contention.
• Receiver includes a fail-safe feature that guarantees a high output state when inputs are left open.

Drivers, Receivers, Transceivers Applications

• Battery-powered RS-485 and RS-422 communication systems
• Low power RS-485/RS-422 transceivers requiring extended common-mode range
• Level translator applications in industrial environments

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix IN8#PBF corresponds to the industrial temperature range (-40°C to 85°C) and 8-lead PDIP package configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure ordering details match the exact part number to avoid discrepancies in temperature ratings or packaging types.

Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring low power consumption alongside robust ESD protection and extended common-mode voltage ranges. It serves as a pin-compatible alternative to the LTC485. Consider the 250 kbits/s maximum data rate limitation imposed by the slew-rate controlled driver when evaluating system timing requirements.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC1483 series of ultra-low power RS-485 transceivers. It shares functional similarities with the LTC1481 but offers specific package and temperature variations. The 'I' designation indicates the industrial temperature grade, distinguishing it from commercial variants like the LTC1483CN8.

Drivers, Receivers, Transceivers Replacement Considerations

The LTC485 is explicitly noted as pin-compatible. Other family members such as the LTC1481 and LTC1487 offer similar low-power functionalities with varying feature sets regarding input impedance and EMI reduction.