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LT1785

Part Number	LT1785
Manufacturer	Linear Technology
Description	60V Fault Protected RS485/RS422 Transceivers
Published	Mar 22, 2005
Detailed Description	LT1785/LT1785A LT1791/LT1791A 60V Fault Protected RS485/RS422 Transceivers FEATURES s s s s DESCRIPTIO s s s s s s ...
Datasheet	LT1785 PDF File

Overview

LT1785/LT1785A LT1791/LT1791A 60V Fault Protected RS485/RS422 Transceivers FEATURES s s s s DESCRIPTIO s s s s s s U APPLICATIO S s s s Protected from Overvoltage Line Faults to ±60V Pin Compatible with LTC485 and LTC491 High Input Impedance Supports Up to 128 Nodes No Damage or Latchup to ESD IEC-1000-4-2 Level 4: ±15kV Air Discharge IEC-1000-4-2 Level 2: ± 4kV Contact Discharge Controlled Slew Rates for EMI Emissions Control Guaranteed High Receiver Output State for Floating, Shorted or Inactive Inputs Outputs Assume a High Impedance When Off or Powered Down Drives Low Cost, Low Impedance Cables Short-Circuit Protection on All Outputs Thermal Shutdown Protection The LT®1785/LT1791 are half-duplex and full-duplex differential bus transceivers for RS485 and RS422 applications which feature on-chip protection from overvoltage faults on the data transmission lines.
Receiver input and driver output pins can withstand voltage faults up to ±60V with respect to ground with no damage t...

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