Exar, a provider of high-performance analog mixed-signal components and data management solutions, has released the XR3080-88X series of highly reliable RS-485 / RS- for the enhanced fault tolerance and voltage protection required by harsh industrial environments. 422 transceiver products. This series of products includes 9 chips, whether in full-duplex or half-duplex configurations, all support data transmission rates up to 20Mbps, and can be used for remote instruments, AC / DC motor drives, intelligent buildings, security systems, process control, and other industries Automation application. The XR3080-88X product family also achieves extremely low power consumption, making it ideal for high-voltage isolated RS-485 applications by running a smaller and lower cost converter in an isolated power supply.
Analog bus pins can withstand direct short-circuit voltages up to ± 18V and have ESD protection beyond ± 15kV (IEC 61000-4-2 air gap discharge). Compared to standard RS-485 / 422, Profibus-compliant output drivers provide a SNR (signal-to-noise ratio) that is 40% higher, allowing higher noise tolerance or longer cable lengths.
"These products have made our customers more confident that their systems can function normally in the real world, rather than just being limited to a simple laboratory environment," said Jack Roan, strategic marketing manager at Exar, "When it comes to For noise, electromagnetic interference, cable length, or other power supply related to bus wiring, industrial applications will be very difficult to predict. XR3080-88X series products provide additional security for the above types of equipment. "
The XR3080-88X product family series is an RS-485 chip with 1 driver and 1 receiver, which operates from + 4.5V to + 5.5V. This series of chips is equipped with enhanced ESD protection and short circuit current that enhances up to ± 15 kV (IEC 61000-4-2 air gap discharge, ± 8 kV IEC 61000-4-2 contact discharge, ± 15 kV human body model) Limit and thermal shutdown functions. The XR3080-85X driver has a slew rate limiting function, enabling high-speed (20 Mbps) operation while achieving EMI reduction and error-free communication on long or unterminated data cables (250 kbps and 1 Mbps data rate).
Chips with DE and RE pins include hot-swap circuits to prevent erroneous conversions on the bus during power-up or dynamic insertion, and can enter a 1 nA low-current shutdown mode to achieve maximum power saving. When this series of transceiver products work under + 5.0V power supply, the current consumption is less than 600μa. When the receiver is idling, the current consumption is usually only 300μa. XR3080-88X, which is compliant with the industry standard 8 NSOIC and 14 NSOIC packages, is currently available.
About Exar
Exar is dedicated to the design, development and sale of high-performance analog mixed-signal integrated circuits and advanced subsystem solutions for the network and storage, industrial and embedded systems, and communications architecture markets. Exar products cover power management and connectivity components, communications products, network security, and storage optimization solutions. Exar has branches all over the world to ensure real-time customer support.
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