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Product Detailed Parameters
- Description：HIGH SPEED DUAL COMPARATOR 14-CD
- 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：14-CDIP (0.300", 7.62mm)
- Mounting Type：Through Hole
- Supplier Device Package：14-CDIP
- Grade：-
- Qualification：-
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Overview
The LM119J-QMLV is a high-speed dual comparator manufactured by Texas Instruments, designed for precision applications requiring radiation tolerance. It operates from a single 5V logic supply up to ±15V power supplies. The device features an uncommitted collector output stage capable of driving loads such as lamps and relays with currents up to 25 mA. It offers a typical response time of 80 ns at ±15V and maintains a minimum fan-out of 2 on each side. The component ensures compatibility with RTL, DTL, and TTL logic families.
Feature Summary
- Radiation tolerant design ensuring High Dose Rate performance up to 100 krad(Si) without Enhanced Low Dose Rate Sensitivity (ELDRS).
- High-speed operation with typically 80 ns response time at ±15V supply voltage.
- Uncommitted collector output stage compatible with various logic families including RTL, DTL, and TTL.
- Wide operating supply voltage range supporting single 5V logic or dual ±15V power supplies.
Applications
- Relay Driver circuits
- Window Detector configurations
Procurement Notes
Verify the specific ordering suffix matches the required radiation qualification level. Confirm package type availability against the Package Option Addendum. Ensure compliance with MIL-STD-883 Group 5 inspection requirements for military-grade specifications. Check for ELDRS-free status if low-dose rate environments are anticipated.
Selection Notes
Select this component when radiation hardness is critical for aerospace or defense systems. Choose over standard comparators like the LM710 for higher gain and lower input current. Consider the uncommitted collector output for flexible interfacing with digital logic. Verify thermal resistance requirements for the chosen ceramic package under expected ambient conditions.
Part Context
This part belongs to the LM119QML family of high-speed dual comparators. It is distinct from commercial variants by its QML certification and radiation testing. The device shares architectural similarities with older models but provides improved speed and versatility. It serves as a robust alternative to general-purpose comparators in harsh electromagnetic environments.
Replacement Considerations
LM119JRQMLV
FAQ
Does the LM119J-QMLV exhibit Enhanced Low Dose Rate Sensitivity?
No, the device is specified as ELDRS Free, ensuring stable performance in low dose rate environments.
What is the maximum output current capability?
The uncommitted collector output stage can drive currents up to 25 mA, suitable for lamps and relays.
