National Semiconductor LM119 LM219 LM319 High-Speed Dual Comparator Data Sheet - Specifications User Manual
Summary
These versatile high-speed dual comparators are precision integrated circuits designed for accurate signal differentiation across complex electronic systems. They operate reliably from a wide range of supply voltages while maintaining fast response times and compatibility with multiple digital logic families. This manual provides comprehensive technical specifications, detailed electrical characteristics, absolute maximum ratings, and application guidelines. It is essential reading for engineers and designers selecting the appropriate LM119, LM219, or LM319 series for robust industrial and general-purpose circuit development.
Page 1 Text Content
LM 119/LM 219/LM igh peed ual C om parator
LM119/LM219/LM319 High Speed Dual Comparator
Operates from single 5V supply
General Description
Typically ns response time at ±15V
The LM119 series are precision high speed dual compara-
Minimum fan-out of each side
tors fabricated on single monolithic chip. They are de-
Maximum input current of µA over temperature
signed to operate over wide range of supply voltages down
to single 5V logic supply and ground. Further, they have Inputs and outputs can be isolated from system ground higher gain and lower input currents than devices like the High common mode slew rate
LM710. The uncommitted collector of the output stage Although designed primarily for applications requiring opera- makes the LM119 compatible with RTL, DTL and TTL as well tion from digital logic supplies, the LM119 series are fully as capable of driving lamps and relays at currents up to specified for power supplies up to ±15V. It features faster re- m A. sponse than the LM111 at the expense of higher power dis-
The LM319A offers improved precision over the standard sipation. However, the high speed, wide operating voltage LM319, with tighter tolerances on offset voltage, offset cur- range and low package count make the LM119 much more rent, and voltage gain. versatile than older devices like the LM711. The LM119 is specified from −55˚C to +125˚C, the LM219 is Features specified from −25˚C to +85˚C, and the LM319A and LM319 are specified from 0˚C to +70˚C.
Two independent comparators
Connection Diagram
Dual-In-Line Package
DS005705-4
Note 1: Also available per SMD# or JM38510/10306
Order Number LM119J, LM119J/883 (Note 1), LM219J, LM319J, LM319AM, LM319M,
LM319AN or LM319N
See NS Package Number J14A, M14A or N14A
National Semiconductor Corporation DS005705 www.national.com
Page Summary Contents For National Semiconductor LM119 LM219 LM319 High-Speed Dual Comparator Data Sheet - Specifications User Manual
Manual Details
| Brand | National |
|---|---|
| Pages | 11 |
| File Size | 331.87 KB |
| Published | June 17, 2026 |
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Frequently Asked Questions
What types of digital logic signals can the LM119 series drive?
It is compatible with RTL, DTL, and TTL, and can also drive lamps and relays up to 25A.
Which comparator variant supports environments down to -55°C?
The LM119 series is specified for the widest temperature range, from −55˚C to +125˚C.
What operating voltage supplies are supported by these comparators?
They can operate from a single 5V supply, with ratings extending up to ±15V supplies.