Multipoint LVDS transceivers offer 8 kV IEC ESD protection

May 11, 2012 // By Julien Happich
Analog Devices' multipoint, low-voltage, differential signalling ADN469xE M-LVDS series includes eight transceivers, each of which is capable of connecting 32 data/clock nodes using a single differential cable pair at data rates of 100 Mbps or 200 Mbps.

Traditional LVDS communication links, by comparison, must use 32 separate point-to-point nodes, which significantly increases power, connector size, cabling costs and total board space. ADI's ADN469xE M-LVDS series delivers 8 kV IEC ESD protection, offering up to 11 times the protection of competing M-LVDS transceivers. This higher level of protection improves the reliability of insertable/removable boards and cards used in wireless base station and networking infrastructure, data acquisition, automated test equipment and other high-speed, highly networked backplane and cable applications. Available in half- and full-duplex versions, ADI’s ADN469xE transceivers are fully compliant with the TIA/EIA-899 M-LVDS standard.

The new transceivers are available in configurations that include Type 1 receivers with 200 Mbps data rates include symmetrical input threshold voltage (ADN4691E/ADN4693E) designed to improve clock timing performance, and Type 2 receivers with 200 Mbps data rates (ADN4696E/ADN4697E) designed for data applications and feature a receiver-input threshold voltage offset of –100 mV. This ensures a known receiver output state when the bus is idle (bus-idle fail-safe) or the bus inputs are open (open-circuit fail-safe). The devices operate in the –40 to 85˚C temperature range.

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