The LM319DT from STMicroelectronics (ST) is a dual high-speed voltage comparator IC designed for fast signal detection, voltage level monitoring, and analog-to-digital interface circuits. It integrates two independent comparators in a single package, providing a practical solution for electronic systems that require rapid voltage comparison.
The device features open-collector outputs, making it compatible with TTL logic and suitable for interfacing with various digital circuits. Its outputs can also drive lamps and relays with currents up to 25 mA, subject to the applicable operating conditions.
The LM319DT supports a single supply voltage of 5V to 30V or dual supplies from ±2.5V to ±15V. It offers a typical response time of 80 ns at ±15V, making it suitable for high-speed switching and signal-monitoring applications. The 14-pin SO-14 surface-mount package supports compact PCB designs.
Typical applications include threshold detection, zero-crossing detection, waveform comparison, voltage monitoring, and industrial control circuits.
Key Features:
- Manufacturer: STMicroelectronics (ST)
- Device Type: Dual High-Speed Comparator
- Number of Comparators: 2
- Typical Response Time: 80 ns at ±15V
- Supply Voltage: 5V to 30V single supply or ±2.5V to ±15V dual supply
- Output Type: Open Collector
- Maximum Input Current: 1 μA over the operating temperature range
- Package: SO-14, 14-Pin Surface-Mount
- Operating Temperature: 0°C to +70°C
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