SN75176B Differential bus transceiver | TI.com

SN75176B
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
Differential bus transceiver

Differential bus transceiver - SN75176B
Datasheet
 

Recommended alternative parts

  • THVD1429  -  Pin-to-pin device that offers integrated IEC surge (2.5-kV), IEC ESD protection (8-kV contact discharge), IEC EFT (4-kV noise immunity), and extended common vol
  • THVD2450  -  Pin-to-pin device that offers integrated ±70-V fault-protection, IEC ESD protection (12-kV contact discharge), IEC EFT (4-kV noise immunity), and extended comm

Description

The SN65176B and SN75176B differential bus transceivers are designed for bidirectional data communication on multipoint bus transmission lines. They are designed for balanced transmission lines and meet ANSI Standards TIA/EIA-422-B and TIA/EIA-485-A and ITU Recommendations V.11 and X.27.

The SN65176B and SN75176B devices combine a 3-state differential line driver and a differential input line receiver, both of which operate from a single 5-V power supply. The driver and receiver have active-high and active-low enables, respectively, that can be connected together externally to function as a direction control. The driver differential outputs and the receiver differential inputs are connected internally to form differential input/output (I/O) bus ports that are designed to offer minimum loading to the bus when the driver is disabled or VCC = 0. These ports feature wide positive and negative common-mode voltage ranges, making the device suitable for party-line applications.

The driver is designed for up to 60 mA of sink or source current. The driver features positive and negative current limiting and thermal shutdown for protection from line-fault conditions. Thermal shutdown is designed to occur at a junction temperature of approximately 150°C. The receiver features a minimum input impedance of 12 kΩ, an input sensitivity of ±200 mV, and a typical input hysteresis of 50 mV.

Features

  • Bidirectional Transceivers
  • Meet or Exceed the Requirements of ANSI
    Standards TIA/EIA-422-B and TIA/EIA-485-A
    and ITU Recommendations V.11 and X.27
  • Designed for Multipoint Transmission on
    Long Bus Lines in Noisy Environments
  • 3-State Driver and Receiver Outputs
  • Individual Driver and Receiver Enables
  • Wide Positive and Negative Input/Output Bus Voltage Ranges
  • ± 60-mA Max Driver Output Capability
  • Thermal Shutdown Protection
  • Driver Positive and Negative Current Limiting
  • 12-kΩ Min Receiver Input Impedance
  • ± 200-mV Receiver Input Sensitivity
  • 50-mV Typ Receiver Input Hysteresis
  • Operate From Single 5-V Supply

Parametrics

Compare all products in RS-485 & RS-422 Email Download to Excel
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$)
SN75176B Order now 5     1     1     Half     10     None     2     -10 to 15     32     -7 to 12     70     No     Catalog     0 to 70     PDIP | 8
SOIC | 8
SO | 8    
0.81 | 1ku    
SN65176B Samples not available 5     1     1     Half     10     None     1.5     -10 to 15     32     -7 to 12     70     No     Catalog     -40 to 105     PDIP | 8
SOIC | 8    
0.70 | 1ku