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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 LM119E/883 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 loads up to 25 mA and offers a typical response time of 80 ns at ±15V. The device ensures radiation tolerance with a high dose rate capability of 100 krad(Si) and is ELDRS-free. It operates within an ambient temperature range of -55°C to 125°C.
Feature Summary
- High-speed dual comparator architecture with uncommitted collector outputs
- Radiation hardened design ensuring 100 krad(Si) tolerance without enhanced low dose rate sensitivity
- Wide operating voltage range compatible with single 5V logic supplies or dual ±15V rails
- Capable of driving lamps and relays with output currents up to 25 mA
Applications
- Relay driver circuits
- Window detector configurations
- Digital logic interface applications requiring RTL, DTL, or TTL compatibility
Procurement Notes
Verify the specific suffix designation against the manufacturer's current qualification standards. Confirm that the component meets the required MIL-STD-883 test methods for the intended radiation environment. Ensure the package type matches the system thermal and mechanical constraints. Validate that the ordering information aligns with the active production status listed in the datasheet.
Selection Notes
Select this component when radiation hardness is mandatory for the application environment. Choose this part if the design requires fast switching speeds combined with high output drive capabilities. Consider the wide supply voltage flexibility for systems utilizing mixed logic levels. Evaluate the ceramic packaging options for superior thermal dissipation and reliability compared to plastic alternatives.
Part Context
This device belongs to the LM119 family of precision comparators manufactured by Texas Instruments. It is specifically qualified under the QML (Military) standard, indicating suitability for defense and aerospace applications. The /883 suffix denotes compliance with MIL-STD-883 testing requirements, distinguishing it from commercial grade variants.
Replacement Considerations
LM119QML
FAQ
Is the LM119E/883 susceptible to Enhanced Low Dose Rate Sensitivity?
No, the device is specified as ELDRS-free, ensuring stable performance under low dose rate conditions.
What is the maximum output current capability of the LM119E/883?
The uncommitted collector output stage can drive loads with currents up to 25 mA.
