LM311DR Comparator IC by Texas Instruments | General Purpose, 8-SOIC Package

The Texas Instruments LM311DR is a single high-speed voltage comparator designed for precision signal comparison and switching applications. Packaged in an 8-SOIC, this device is highly versatile and supports a wide supply voltage range, making it suitable for both analog and digital systems.

With open-collector and open-emitter outputs, the LM311DR can directly drive lamps, relays, or logic circuits, supporting voltages up to 50 V at 50 mA. It is fully compatible with TTL and MOS logic systems and provides advanced features such as offset balancing, strobe functionality, and wire-OR connectivity, ensuring flexibility across multiple design requirements.

Key Specifications

• Comparator Type: General Purpose, Single

• Package: 8-SOIC

• Supply Voltage Range: ±15 V (operational amplifiers), 5 V (logic systems)

• Output Type: Open-Collector, Open-Emitter

• Output Drive Capability: Up to 50 V at 50 mA

• Compatibility: TTL and MOS logic

• Special Features: Offset balancing, strobe control, wire-OR capability

• Isolation: Inputs and outputs can be isolated from system ground

Applications

• Voltage monitoring and level detection

• Precision signal comparison

• Relay and lamp drivers

• Pulse and waveform shaping

• Logic interfacing (TTL/MOS compatible)