Dallas - Texas Instruments Inc.'s SN65HVD1176 and SN75HVD1176 Profibus transceivers have been designed to provide improved output transition skew of less than 1 nanosecond (0.2 ns typical), giving system designers the ability to tighten up the total timing budget of their networked applications. Powered by a 5-V supply, the devices fully comply with the EN 50170 and TIA/EIA-485 standards.
The HVD1176 also features high ESD protection of plus/minus 10 kV and fail-safe for open, idle and shorted bus conditions, which TI says are ideal for demanding industrial applications. TI's HVD1176 half-duplex transceivers are designed for Profibus and RS-485 networks.
With low skew during output transitions and driver enabling/disabling, this device is suitable for signaling rates up to 40 Mbits/s over long twisted-pair cables. HVD1176 also provides excellent common-mode rejection up to 50 MHz and 1/5 unit load to have 160 nodes on a bus.
The SN75HVD1176 is characterized for operation at 0 degrees C to 70 degrees C. The SN65HVD1176 is characterized for -40 degrees C to 85 degrees C. Both devices are available now from TI and its authorized worldwide distributors in an eight-pin SOIC package. Suggested resale pricing is $1.40 in lots of 1,000.
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