LM219N

Overview

The LM219N is a dual high-speed comparator designed for operation over a wide supply voltage range, including single 5 V logic supplies. It features low input currents and high gains, with an open-collector output stage compatible with TTL logic and capable of driving loads up to 25 mA. The device offers faster response times than the LM111, typically 80 ns at ±15 V, while supporting power supplies up to ±15 V.

Feature Summary

• Dual independent comparators with open-collector outputs
• Wide operating voltage range from +5 V to ±15 V
• High common-mode slew rate and fast response time
• Low maximum input current across the operating temperature range

Applications

• Digital logic signal comparison
• Lamp and relay driving circuits
• Window comparator designs

Procurement Notes

Verify the specific suffix 'N' against the manufacturer's official datasheet to confirm package type and tape-and-reel availability. Ensure the component meets the required operating temperature range and electrical specifications for your design before procurement.

Selection Notes

Select this component when high-speed comparison is required alongside compatibility with standard digital logic families. Consider the higher current consumption compared to slower alternatives if power efficiency is a primary constraint.

Part Context

This part belongs to the LM119/LM219/LM319 family of precision high-speed comparators. These devices are engineered to bridge the gap between general-purpose comparators and specialized high-speed units, offering versatility in both analog and digital applications.

Replacement Considerations

The LM119 and LM319 are functionally related parts within the same family. Verify pinout compatibility and specific electrical parameter tolerances before substituting.