Texas Instruments SN65176BDR RS422/RS485 Line Driver, 5V Supply, SOIC-8

The Texas Instruments SN65176BDR is a robust differential bus transceiver, engineered for reliable bidirectional data communication in demanding industrial and commercial settings. Housed in a compact 8-pin SOIC package, it is specifically designed for multipoint transmission over long bus lines, even in electrically noisy environments, ensuring data integrity where it matters most.

This versatile component integrates a three-state differential line driver and a differential input line receiver, both operating from a single 5V power supply (range 4.75V to 5.25V). The driver and receiver feature active high and low enables, which can be tied together externally for straightforward direction control. Its differential I/O bus ports are engineered to present minimal loading to the bus when disabled, preserving overall network performance.

A key strength is its wide positive and negative common-mode voltage range, making it exceptionally suitable for party-line applications. It is fully compliant with major industry standards, including ANSI TIA/EIA-422-B, TIA/EIA-485-A, and ITU recommendations V.11 and X.27, guaranteeing interoperability in standardised systems.

Robust Protection & Performance Features

• Designed for high reliability with ±60mA maximum driver output capability.
• Incorporates thermal shutdown protection and driver current limiting to safeguard against fault conditions.
• The receiver offers high input impedance (12kΩ minimum), excellent sensitivity (±200mV), and 50mV of input hysteresis for improved noise immunity.
• Operates across an extended industrial temperature range from -40°C to 105°C.

Important Handling Note: This device has limited built-in ESD protection. During storage and handling, leads should be shorted together or the device placed in conductive foam to prevent electrostatic damage to the MOS gates.

With its combination of standards-compl