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Product Detailed Parameters
- Description：HIGH SPEED DUAL COMPARATOR 20-LC
- Series：-
- Mfr：Texas Instruments
- Package：Bulk
- 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：20-CLCC
- Mounting Type：Surface Mount
- Supplier Device Package：20-LCCC (8.89x8.89)
- Grade：-
- Qualification：-
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Overview
The LM119QML is a high-speed dual comparator fabricated on a single monolithic chip, designed for operation over a wide range of supply voltages down to a single 5V logic supply. It features higher gain and lower input currents compared to devices like the LM710. The uncommitted collector output stage allows compatibility with RTL, DTL, and TTL logic families, capable of driving loads such as lamps and relays at currents up to 25 mA. It operates from a single 5V supply or dual supplies up to ±15V.
Feature Summary
- Available with radiation ensured performance
- High dose rate tolerance of 100 krad(Si)
- ELDRS Free capability at 100 krad(Si)
- Two independent comparators on a single chip
Applications
- Digital logic power supply monitoring
- Relay driver circuits
- Window detector applications
Procurement Notes
Verify the specific radiation qualification (High Dose Rate vs ELDRS Free) required for your application environment. Confirm the package type matches your board layout requirements. Ensure that the device's ESD protection limitations are addressed through proper handling procedures during storage and assembly.
Selection Notes
Select this component when high speed and radiation hardness are critical. Consider the trade-off between faster response time and higher power dissipation compared to older devices. Verify that the open-collector output interface aligns with your system's logic voltage levels and drive requirements.
Part Context
This part belongs to the LM119 family of precision high-speed dual comparators. It is specifically qualified under military standards (QML), offering enhanced reliability for defense and aerospace applications. The device improves upon legacy models by providing better speed and versatility in a low pin-count package.
Replacement Considerations
LM119E-SMD
FAQ
What is the maximum input voltage range?
The input voltage range is specified from 1.0V to 3.0V with a single +5V supply, and from -12V to 12V with ±15V supplies.
How does the output stage interface with logic families?
The uncommitted collector output makes the LM119 compatible with RTL, DTL, and TTL logic families.
