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Product Detailed Parameters
- Description：HIGH SPEED DUAL COMPARATOR 0-DIE
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Collector, DTL, RTL, TTL
- Voltage - Supply, Single/Dual (±)：36V
- Voltage - Input Offset (Max)：4mV @ ±15V
- Current - Input Bias (Max)：0.5µA @ ±15V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：4.5mA, 11.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-55°C ~ 125°C
- Package / Case：Die
- Mounting Type：Surface Mount
- Supplier Device Package：Die
- Grade：-
- Qualification：-
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Overview
The LM119 MDR is a high-speed dual comparator fabricated on a single monolithic chip, designed for operation over a wide supply voltage range down to a single 5V logic supply. It features uncommitted collector outputs capable of driving lamps and relays at currents up to 25 mA. The device offers a typical response time of 80 ns at ±15V, with a maximum input current of 1 µA over the operating temperature range. It provides a minimum fan-out of 2 per side and maintains high common-mode slew rates.
Feature Summary
- Two independent comparators integrated on a single monolithic chip
- Uncommitted collector output stage compatible with RTL, DTL, and TTL logic families
- Capable of driving loads such as lamps and relays directly
- Inputs and outputs can be isolated from system ground
Applications
- Relay driver circuits
- Window detector applications
- Digital logic power supply monitoring
- High-speed signal comparison in military or space environments
Procurement Notes
Verify that the specific ordering suffix corresponds to the die sale format (MDR) rather than a packaged variant. Confirm radiation qualification requirements, specifically whether High Dose Rate or ELDRS Free specifications are needed for the target environment. Ensure compatibility with MIL-STD-883 testing methods if military-grade conformance is required.
Selection Notes
Select this component when high speed and wide voltage operation are critical. It offers faster response times than the LM111 while maintaining versatility across various supply configurations. Consider the uncommitted collector output for flexibility in interfacing with different logic families or driving higher current loads like relays without additional buffering stages.
Part Context
The LM119 series includes variants such as LM119QML and LM119QML-SP, which are qualified for military and space applications respectively. The MDR suffix indicates a die sale format, distinct from ceramic packages like CDIP or TO-100 found in other part numbers within the same family. These devices share core electrical characteristics but differ in packaging and radiation hardening options.
Replacement Considerations
LM119QML
FAQ
What is the maximum output current capability?
The uncommitted collector output stage can drive loads at currents up to 25 mA.
Is the device sensitive to enhanced low dose rate sensitivity (ELDRS)?
Specific variants are available as ELDRS Free, ensuring no enhanced low dose rate sensitivity under MIL-STD-883 testing conditions.
