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.

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