Transceivers Extend PROFIBUS Range and Capacity

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The Exar SP1486E PROFIBUS transceiver extends data transmission range compared to standard RS-485 transceivers, with data rates up to 20Mbits/s and low differential driver skew of 1ns.

In addition, 1/8th load capability allows up to 256 transceivers on the communication bus without violating the PROFIBUS specification.

The new device is a 5V powered half-duplex differential line transceiver suitable for high speed, bidirectional communication on multipoint busses. It is capable of driving a 2.7V differential output voltage into a 54Ω load and also implements advanced failsafe protection that prevents the CMOS inputs from drifting to improper logic levels when the receiver inputs are floating, shorted or open.

The Hot Swap capability allows live insertion and removal, required for use in line cards for industrial control systems. The device compiles with TIA/ EIA-485, TIA/EIA-422 and meets IEC61000-4-2 ESD protection requirements. Driver short circuit current limit and thermal shutdown protection are also provided to protect against overload conditions.

 

FEATURES 300µA operating current 1µA shutdown mode ESD protection: ±15kV air gap; ±8kV contact discharge

APPLICATIONS Advanced Fieldbus networks Security networks Robotic manufacturing plants Remote sensing Motion control systems Metering equipment

 

 

 

 Featured Products

Part Number		Description	Data Sheet	App. Notes
SP1486EEN-L		5V, 15kV ESD, PROFIBUS RS-485/RS-422 Half-Duplex Transceiver
SP1486EMN-L		5V, 15kV ESD, PROFIBUS RS-485/RS-422 Half-Duplex Transceiver

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