SN751177 Dual Differential Driver/Receiver Pairs | TI.com

SN751177 (ACTIVE) Dual Differential Driver/Receiver Pairs

Dual Differential  Driver/Receiver Pairs - SN751177
Datasheet
 

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  • TPD2E007  -  Recommended ESD protection device for RS-485 applications

Description

The SN751177 and SN751178 dual differential drivers and receivers are monolithic integrated circuits that are designed for balanced multipoint bus transmission at rates up to 10 Mbit/s. They are designed to improve the performance of full-duplex data communications over long bus lines and meet ANSI Standards TIA/EIA-422-B and TIA/EIA-485-A and ITU Recommendations V.10 and V.11.

The SN751177 and SN751178 driver outputs provide limiting for both positive and negative currents and thermal-shutdown protection from line-fault conditions on the transmission bus line.

The receiver features high input impedance of at least 12k , an input sensitivity of ±200 mV over a common-mode input voltage range of -12 V to 12 V, and typical input hysteresis of 50 mV. Fail-safe design ensures that if the receiver inputs are open, the receiver outputs always will be high.

The SN751177 and SN751178 are characterized for operation from -20°C to 85°C.

Features

  • Meet or Exceed the Requirements of ANSI Standards TIA/EIA-422-B and TIA/EIA-485-A and ITU Recommendations V.10 and V.11
  • Designed for Multipoint Bus Transmission on Long Bus Lines in Noise Environments
  • Driver Positive- and Negative-Current Limiting
  • Thermal Shutdown Protection
  • Driver 3-State Outputs
  • Receiver Common-Mode Input Voltage Range of -12 V to 12 V
  • Receiver Input Sensitivity...±200 mV
  • Receiver Hysteresis...50 mV Typ
  • Receiver Input Impedance...12k Min
  • Receiver 3-State Outputs (SN751177 Only)
  • Operate From Single 5-V Supply

Parametrics

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Part number Order Supply voltage(s) (Nom) (V) Number of TX Number of RX Duplex Signaling rate (Max) (Mbps) IEC 61000-4-2 contact (+/- kV) HBM ESD (kV) Fault protection (V) Number of nodes Common mode range ICC (Max) (mA) Isolated Rating Operating temperature range (C) Package Group Approx. price (US$)
SN751177 Order now 5     2     2     Full     10     None     2     -10 to 15     32     -7 to 12     110     No     Catalog     -20 to 85     PDIP | 16
SO | 16    
2.16 | 1ku