Overview
The SN751177NSR is a quad differential line driver and receiver designed by Texas Instruments. It is specifically engineered for use in high-speed digital networks and communication systems, particularly for balanced multipoint bus transmission. 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.10 and V.11. It is characterized for operation from -20°C to 85°C and is suitable for applications requiring reliable data transmission over long bus lines in noisy environments.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | SOIC (Small Outline Integrated Circuit) - 16 pins |
| Operating Temperature Range | -20°C to 85°C |
| Power Supply | Single 5V supply |
| Supply Voltage Range | 4.75V to 5.25V |
| Maximum Data Rate | Up to 10 Mbits/s |
| Receiver Input Sensitivity | ±200mV |
| Receiver Input Impedance | 12 kΩ minimum |
| Receiver Hysteresis | 50mV typical |
| Driver Output Type | 3-state outputs |
| ESD Protection | Up to ±15kV |
| Interface Standard | EIA-422-B, TIA-422-B, EIA-485-A, TIA-485-A, V.10, V.11 |
Key Features
- Meets or exceeds 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 noisy environments.
- Driver positive- and negative-current limiting and thermal shutdown protection.
- Driver 3-state outputs and receiver 3-state outputs (SN751177 only).
- Receiver common-mode input voltage range of -12V to 12V and input sensitivity of ±200mV.
- High ESD protection up to ±15kV.
- Low power consumption.
- Wide operating temperature range of -20°C to 85°C.
Applications
- Industrial control systems.
- Sensor networks.
- Building automation systems.
- Automotive systems.
- Motor drives and factory automation.
The SN751177NSR is ideal for applications where high ESD protection, low power consumption, and a wide operating temperature range are essential, such as in industrial settings, commercial buildings, and automotive systems.
Q & A
- Q: What is the maximum data rate supported by the SN751177NSR?
A: The SN751177NSR supports data rates up to 10 Mbits/s.
- Q: Can the SN751177NSR be used in automotive communication systems?
A: Yes, the SN751177NSR is suitable for automotive communication systems, offering high ESD protection and reliable data transmission in demanding environments.
- Q: What is the operating temperature range of the SN751177NSR?
A: The SN751177NSR operates from -20°C to 85°C.
- Q: What is the power supply requirement for the SN751177NSR?
A: The SN751177NSR operates from a single 5V supply.
- Q: What are the key features of the SN751177NSR receiver?
A: The receiver features high input impedance, input sensitivity of ±200mV, and typical input hysteresis of 50mV. It also has a common-mode input voltage range of -12V to 12V and 3-state outputs.
- Q: Does the SN751177NSR provide ESD protection?
A: Yes, the SN751177NSR provides robust ESD protection up to ±15kV.
- Q: How many channels does the SN751177NSR support?
A: The SN751177NSR is a quad differential line driver and receiver, supporting four channels.
- Q: What is the package type of the SN751177NSR?
A: The SN751177NSR is housed in a 16-pin SOIC (Small Outline Integrated Circuit) package.
- Q: Are there any equivalents or alternatives to the SN751177NSR?
A: Yes, alternatives include the SN65HVD75 from Texas Instruments and the ADM4851 from Analog Devices.
- Q: How do I use the SN751177NSR in an RS-485 communication bus?
A: To use the SN751177NSR, connect it to your RS-485 communication bus by wiring the A and B pins to the respective bus lines. Ensure proper power supply connections to VCC and GND. Use the OUT and IN pins to control and monitor data transmission. Refer to the datasheet for detailed usage instructions.
