RS-485 & RS-422 transceivers

Increase data reliability and system performance across longer distances

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Explore our portfolio of high-performance transceivers for RS-422 and RS-485 interfaces. Our RS-422 and RS-485 transceivers provide integrated protection and high immunity in the industry's smallest packages for reliable performance in harsh and noisy environments.

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ESD-integrated transceivers

RS-485 transceivers with integrated ESD protection up to 30-kV IEC 61000-4-2 contact discharge protection and 30-kV HBM protection to reduce cost and board space by eliminating external protection

Fault-protected transceivers

RS-485 transceivers with high bus-fault protection on data pins and wide common-mode voltage that are designed to protect and perform in harsh industrial environments

Surge-protected transceivers

RS-485 transceivers with a high level of integrated surge protection (IEC 61000-4-5) to reduce external protection components

Related categories
Isolated RS-485 transceivers

RS-485 transceivers with integrated capacitive isolation to provide 2.5 kVRMS of isolation between the bus-line transceiver and the logic-level interface

RS-485 featured portfolio

THVD2450V NEW

70-V bus-fault protected, flexible IO, 3-V to 5.5-V 50-Mbps half-duplex RS-485 transceiver

Approx. price (USD) 1ku | 1.798
THVD1424 NEW

RS-485 transceiver with slew-rate control, integrated switchable termination and duplex switching

Approx. price (USD) 1ku | 0.986
THVD1449V NEW

12-Mbps RS-485 transceiver with integrated 4-kV IEC surge protection and 1.65-V to 5.5-V IO support

Approx. price (USD) 1ku | 1.52

Technical resources

Application note
Application note
Using THVD80x0 Devices to Communicate Over an AC Outlet
THVD8000 and THVD8010 are excellent when using two wires to achieve power line communication for RS-485 signal. Learn system solutions to transfer RS-485 signal over 110-V AC, for 220-V AC or a few hundred volts DC power line.
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Application note
Application note
RS-485: High-Fault Protection, Wide-Input Common Mode, and Deglitch Function
Learn how features like fault protection, input common mode ranges, and deglitch enables can help designers to create a more robust RS-485 system.  Each feature is discussed and lab tested using THVD24x0  devices with results. 
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Application note
Application note
RS-485: What is Auto-Direction and Why it is Useful in Systems?
The RS-485 auto-direction feature is discussed and lab tested using THVD14x6 devices. The auto-direction feature makes THVD14x6 a good choice when the system has limited isolation channels or GPIO pins.
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