RS422/RS485 transceivers guaranteed over high temperatures

Milpitas, Calif.—Linear Technology Corp. has expanded its RS422/RS485 transceiver product family with an “H-grade” option designed for high temperature applications.

LTC285xH versions feature an extended operating temperature of -40°C to 125°C, as well as the attributes traditionally required for these applications. Select models within the LTC285xH series feature slew rate limiting, while others include a receiving logic-selectable 120-Ohm termination.

All devices are designed to operate in systems with 3.3V or 5V supplies, possess a maximum data rate of 20-Mbits/s and maintain high-input impedance capable of supporting up to 256 nodes. In addition, enhanced ESD protection guarantees that no damage or latchup can occur up to ±15kV HBM. These features, coupled with a wide operating window, make the LTC285xH family suitable for an array of automotive applications, including level translation, backplane transceiving and low power RS422/RS485 transceiving.

The LTC285x family has a variety of ordering options. Aside from the H-grade version, “C” and “I” versions offer more relaxed operating temperature ranges, from 0°C to 70°C and -40°C to 85°C, respectively. Half-and full-duplex versions are available as well. Industry-standard packages include an 8-lead 3mm x 3mm DFN, SO-8, MSOP-10 and SSOP-16, all of which are RoHS compliant.

Pricing: Starts at $1.91 each in 1,000 piece quantities.
Availability: Now shipping in production volume.

Datasheets: LTC2850, LTC2854 and LTC2858-2.

Linear Technology, 1-408-432-1900,

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