The LM319D from STMicroelectronics is a high-speed dual comparator designed to operate over a wide range of voltages, from standard ±15V operational amplifier supplies down to the single 5V supply used for IC logic. Its high-speed performance is achieved through a typical response time of 80 ns with ±15V supplies and 30 ns with ±5V supplies when driving a 5 mA load. This makes the LM319D an ideal choice for fast and reliable digital logic systems and signal processing applications.

Key Features

• Wide Supply Voltage Range: Operates from single 5V supply up to ±15V dual supplies.
• High-Speed Operation: Fast response time of 80 ns with ±15V and 30 ns with ±5V, ideal for high-speed analog-to-digital converters and other fast signal processing applications.
• Dual Comparators: Contains two independent precision voltage comparators in a single package, offering design flexibility.
• Low Input Bias Current: Ensures accurate readings in high-impedance sensor circuits.
• Output Compatible with RTL, DTL, TTL, MOS, and CMOS Logic Systems: Can interface with a variety of digital logic families.

Applications

The LM319D is versatile and can be used in a multitude of applications including:

• High-speed analog-to-digital converters
• Zero-crossing detectors
• Comparator circuits
• Square-wave and pulse generation
• High-speed triggers
• Voltage monitoring
• Motor controllers

Product Specifications

The LM319D is offered in a SOIC-14 package, ensuring compactness for space-constrained applications. It has a wide operating temperature range from 0°C to +70°C, making it suitable for commercial-grade applications. The device's low power consumption, combined with its high-speed capabilities, makes it a practical choice for energy-efficient and time-critical designs.

Conclusion

With its combination of high-speed operation, dual comparator integration, and compatibility with various logic systems, the LM319D from STMicroelectronics stands out as a robust and reliable component for electronics requiring precise voltage comparison and fast response times.