Description
The LM311DT from STMicroelectronics is a highly versatile voltage comparator equipped with a strobe function for added control. Designed for flexibility, it operates across a broad range of supply voltages—from standard ±15V operational amplifier supplies down to a single +5V logic supply. With an output capable of switching up to +50V and sourcing/sinking currents as high as 50mA, it is widely compatible with RTL, DTL, TTL, and MOS circuit architectures.
Key Features
- Strobe Capability: Includes a strobe input for active output control.
- High Versatility: Compatible with a wide variety of logic families, including RTL, DTL, TTL, and MOS.
- Robust Output: Capable of switching voltages up to +50V at output currents up to 50mA.
- Precision Performance: Features low input bias (100nA) and offset (6nA) currents for accurate comparison.
- High Gain: Large signal voltage gain of 200V/mV for high-precision switching.
- Rapid Response: Typical response time of 200ns, ideal for high-speed signal monitoring.
Applications
- Level Translation: Effectively bridges signals between different logic levels (e.g., TTL to MOS).
- Industrial Control: Reliable threshold detection and limit-monitoring in automation systems.
- Signal Conditioning: Precision comparator for analog signal waveshaping.
- Embedded Systems: Flexible component for general-purpose voltage level sensing and alarm circuits.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | LM311DT |
| Brand | STMicroelectronics |
| No. of Channels | 1 |
| Response Time | 200 ns |
| Supply Voltage | 5V to ±15V |
| Operating Temp | 0°C to 70°C |
| Package/Case | SOIC (8 Pins) |
Note: Product images are shown for illustrative purposes only and may differ from the actual product. Please refer to the official STMicroelectronics datasheet for complete electrical characteristics and application design details.








