TILM311DR
Overview
The LM311DR is a high-speed voltage comparator designed to operate over a wide range of supply voltages, from standard 15V op-amp rails down to a single 5V logic supply. It features a unique output stage with separate open-collector and open-emitter terminals, allowing it to drive loads referenced to ground, Vcc, or Vee. With a typical response time of 165ns, it is well-suited for applications requiring fast switching and flexible logic interfacing.
Why Choose This Part
The LM311DR offers exceptional flexibility with its strobe capability and independent output emitter, enabling it to drive lamps, relays, or TTL/MOS logic directly. Its ability to operate from a single 5V supply while maintaining low input bias currents (0.25uA max) makes it a versatile choice for mixed-signal designs.
Applications
Key Specifications
Getting Started
When prototyping, ensure the output emitter (Pin 1) is correctly tied to the desired return path, as it is not internally connected to ground. For high-speed operation, use a bypass capacitor near the supply pins and implement a small amount of positive feedback to prevent oscillation during transitions. No specific IDE is required as this is a discrete analog component.
