Overview
The SN65176B, specifically the SN65176BDG4, is a differential bus transceiver produced by Texas Instruments. This device is designed for bidirectional data communication on multipoint bus transmission lines and is suitable for balanced transmission lines. It 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. The SN65176B combines a 3-state differential line driver and a differential input line receiver, both operating from a single 5-V power supply. The device features active-high and active-low enables for the driver and receiver, respectively, which can be connected externally to function as a direction control.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | SOIC (D) |
| Pins | 8 |
| Operating Temperature Range (°C) | -40 to 105 |
| Power Supply Voltage | 5 V |
| Driver Output Current Capability | ± 60 mA |
| Receiver Input Impedance | 12 kΩ Minimum |
| Receiver Input Sensitivity | ± 200 mV |
| Receiver Input Hysteresis | 50 mV Typical |
| Thermal Shutdown Protection | Approximately 150°C Junction Temperature |
Key Features
- Bidirectional transceivers
- Meet or exceed 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 Maximum driver output capability
- Thermal shutdown protection and driver positive and negative current limiting
Applications
- Chemical and gas sensors
- Digital signage
- HMI (human machine interfaces)
- Motor controls: AC induction, brushed and brush-less DC, low- and high-voltage, stepper motors, and permanent magnets
- TETRA Base stations
- Telecom towers: remote electrical tilt units (RET) and tower-mounted amplifiers (TMA)
- Weigh scales
- Wireless repeaters
Q & A
- What is the primary function of the SN65176B?
The SN65176B is a differential bus transceiver designed for bidirectional data communication on multipoint bus transmission lines.
- What standards does the SN65176B comply with?
The SN65176B 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 power supply voltage for the SN65176B?
The device operates from a single 5-V power supply.
- What is the maximum driver output current capability of the SN65176B?
The driver can source or sink up to ± 60 mA of current.
- What is the minimum receiver input impedance of the SN65176B?
The minimum receiver input impedance is 12 kΩ.
- What is the receiver input sensitivity of the SN65176B?
The receiver input sensitivity is ± 200 mV.
- Does the SN65176B have thermal shutdown protection?
Yes, the device features thermal shutdown protection at approximately 150°C junction temperature.
- What are the typical applications of the SN65176B?
Applications include chemical and gas sensors, digital signage, HMI, motor controls, TETRA Base stations, telecom towers, weigh scales, and wireless repeaters.
- What is the operating temperature range of the SN65176B?
The operating temperature range is -40°C to 105°C.
- What package types are available for the SN65176B?
The device is available in SOIC (D) and PDIP packages among others.
