ISL31483E, ISL31485E DATASHEET NOT RECOMMENDED FOR NEW DESIGNS
RECOMMENDED REPLACEMENT PART
ISL32483E, ISL32485E Fault Protected, Extended CMR, RS-485/RS-422 Transceivers with Cable Invert
The ISL31483E and ISL31485E are fault protected, 5V powered
differential transceivers that exceed the RS-485 and RS-422
standards for balanced communication. The RS-485 transceiver
pins (driver outputs and receiver inputs) are fault protected up to
В±60V. Additionally, the extended common mode range allows
these transceivers to operate in environments with common
mode voltages up to В±25V (>2x the RS-485 requirement),
making this fault protected RS-485 family one of the most
robust on the market.
Transmitters deliver an exceptional 2.5V (typical) differential
output voltage into the RS-485 specified 54О© load. This yields
better noise immunity than standard RS-485 ICs, or allows up
to six 120О© terminations in star network topologies.
Receiver (Rx) inputs feature a “Full Fail-Safe” design, which
ensures a logic high Rx output if Rx inputs are floating, shorted,
or on a terminated but undriven (idle) bus.
The ISL31483E and ISL31485E include cable invert functions
that reverse the polarity of the Rx and/or Tx bus pins in case
the cable is misconnected. Unlike competing devices, Rx full
fail-safe operation is maintained even when the Rx input polarity …