Overview
The DS26C31TMX/NOPB, produced by Texas Instruments, is a quad differential line driver designed for digital data transmission over balanced lines. This device meets all the requirements of the EIA standard RS-422 while retaining the low power characteristics of CMOS technology. It is particularly useful for constructing serial and terminal interfaces with minimal power consumption. The DS26C31TMX/NOPB accepts TTL or CMOS input levels and translates these to RS-422 output levels, making it versatile for various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC-16 | |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage (VCC) | 4.50 to 5.50 | V |
| Typical Propagation Delays | 6 ns | |
| Typical Output Skew | 0.5 ns | |
| Quiescent Supply Current (ICC) | 200 to 500 μA | |
| Input Rise or Fall Times (tr, tf) | 500 ns | |
| Output Short Circuit Current (ISC) | -30 to -150 mA |
Key Features
- TTL Input Compatible
- Typical Propagation Delays: 6 ns
- Typical Output Skew: 0.5 ns
- Outputs Will Not Load Line When VCC = 0 V
- Meets the Requirements of EIA Standard RS-422
- Operation From Single 5-V Supply
- Tri-State Outputs for Connection to System Buses
- Low Quiescent Current
- Available in Surface Mount
- Mil-Std-883C Compliant
- Pin Compatible to AM26LS31 and DS26LS31
- All inputs protected against electrostatic discharge
Applications
The DS26C31TMX/NOPB is designed for applications that require long-distance digital data transmission over balanced cables. It is suitable for:
- Serial and terminal interfaces
- Differential line driver applications for RS-422
- Conversion from TTL or CMOS input levels to differential signal levels
- Environments requiring good immunity to noise and shifts in ground reference potential
Q & A
- What is the primary function of the DS26C31TMX/NOPB?
The primary function is to act as a quad differential line driver for digital data transmission over balanced lines, meeting the EIA standard RS-422.
- What are the input compatibility and output levels of the DS26C31TMX/NOPB?
The device accepts TTL or CMOS input levels and translates these to RS-422 output levels.
- What is the typical propagation delay of the DS26C31TMX/NOPB?
The typical propagation delay is 6 ns.
- What is the operating temperature range of the DS26C31TMX/NOPB?
The operating temperature range is -40°C to 85°C.
- Is the DS26C31TMX/NOPB compliant with any military standards?
Yes, it is Mil-Std-883C compliant.
- What is the supply voltage range for the DS26C31TMX/NOPB?
The supply voltage range is 4.50 V to 5.50 V.
- How does the DS26C31TMX/NOPB handle power-down situations?
The device uses special output circuitry that enables the drivers to power down without loading down the bus.
- What kind of protection does the DS26C31TMX/NOPB have against electrostatic discharge?
All inputs are protected against damage due to electrostatic discharge by diodes to VCC and ground.
- Is the DS26C31TMX/NOPB available in surface mount packaging?
Yes, it is available in surface mount packaging.
- What are some common applications for the DS26C31TMX/NOPB?
Common applications include serial and terminal interfaces, differential line driver applications for RS-422, and environments requiring good immunity to noise.
