Overview
The SN75176BDR is a differential bus transceiver produced by Texas Instruments. It is designed for bidirectional data communication on multipoint bus transmission lines, particularly suited for balanced transmission lines. The device meets or exceeds the requirements of ANSI standards TIA/EIA-422-B and TIA/EIA-485-A, as well as ITU Recommendations V.11 and X.27. It combines a 3-state differential line driver and a differential input line receiver, both operating from a single 5-V power supply. This makes it ideal for applications requiring robust and reliable data transmission in noisy environments.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Package | SOIC-8 | |
| Operating Temperature Range | 0 to 70 | °C |
| Supply Voltage | 5 V | |
| Driver Output Current | ±60 mA | |
| Receiver Input Impedance | 12 kΩ (Minimum) | |
| Receiver Input Sensitivity | ±200 mV | |
| Receiver Input Hysteresis | 50 mV (Typical) | |
| Common Mode Voltage Range | +12 V to -7 V | |
| Thermal Shutdown Temperature | Approximately 150°C |
Key Features
- Bidirectional transceivers for multipoint bus transmission lines.
- Meets or exceeds ANSI standards TIA/EIA-422-B and TIA/EIA-485-A and ITU Recommendations V.11 and X.27.
- 3-State driver and receiver outputs.
- Individual driver and receiver enables for direction control.
- Wide positive and negative input/output bus voltage ranges.
- Thermal shutdown protection and current limiting for driver outputs.
- Single 5-V power supply operation.
- Small Outline (SOIC) package option for minimum board space.
Applications
- Multipoint bus transmission lines in noisy environments.
- Party-line applications with wide common-mode voltage ranges.
- Remote electrical tilt units (RET) and tower-mounted amplifiers (TMA).
- Weigh scales and other industrial control systems.
- Wireless repeaters and other communication equipment.
Q & A
- What is the primary function of the SN75176BDR?
The SN75176BDR is a differential bus transceiver designed for bidirectional data communication on multipoint bus transmission lines.
- What standards does the SN75176BDR comply with?
The device meets or exceeds ANSI standards TIA/EIA-422-B and TIA/EIA-485-A, as well as ITU Recommendations V.11 and X.27.
- What is the operating voltage of the SN75176BDR?
The device operates from a single 5-V power supply.
- What is the maximum driver output current of the SN75176BDR?
The driver can sink or source up to 60 mA of current.
- What is the thermal shutdown temperature of the SN75176BDR?
Thermal shutdown occurs at a junction temperature of approximately 150°C.
- What is the common mode voltage range of the SN75176BDR?
The device can handle common mode voltages from +12 V to -7 V.
- What type of package is available for the SN75176BDR?
The device is available in a Small Outline (SOIC) package.
- What are the key features of the receiver in the SN75176BDR?
The receiver features a minimum input impedance of 12 kΩ, an input sensitivity of ±200 mV, and a typical input hysteresis of 50 mV.
- Can the SN75176BDR be used in noisy environments?
Yes, the device is designed for use in noisy environments and features thermal shutdown and current limiting for protection.
- What are some typical applications of the SN75176BDR?
Typical applications include multipoint bus transmission lines, party-line applications, remote electrical tilt units, tower-mounted amplifiers, weigh scales, and wireless repeaters.
