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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 MD8 is a high-speed dual comparator manufactured by Texas Instruments, available as a die sale. It features two independent comparators on a single monolithic chip designed for wide supply voltage ranges down to a single 5V logic supply. The device offers faster response than the LM111 with higher gain and lower input currents. It operates from -55°C to +125°C and supports uncommitted collector outputs capable of driving loads up to 25 mA.
Feature Summary
- High-speed operation with typically 80 ns response time at ±15V
- Compatible with RTL, DTL, and TTL logic families
- Capable of driving lamps and relays at currents up to 25 mA
- Low input bias current of maximum 1 μA over temperature
Applications
- Window detector circuits
- Relay driver applications
- Digital logic interface circuits
Procurement Notes
Verify that the specific procurement lot meets the required quality conformance inspection standards per MIL-STD-883, Method 5005, Group 5. Confirm radiation tolerance requirements against High Dose Rate or ELDRS Free specifications if applicable to the target environment. Ensure handling procedures account for limited built-in ESD protection during storage and installation.
Selection Notes
Select this component when high speed and low package count are prioritized over older devices like the LM711. Consider the uncommitted collector output stage for flexibility in interfacing with various logic families. Evaluate power dissipation limits relative to ambient temperature and thermal resistance characteristics for the intended mounting configuration.
Part Context
This part belongs to the LM119 family of precision high-speed dual comparators. It is distinct from operational amplifiers such as the LM118H due to its open-collector architecture and lack of internal frequency compensation. The MD8 designation specifically identifies the bare die format within the broader LM119 product line offered by Texas Instruments.
Replacement Considerations
Public confirmed substitute part numbers include LM119-MW8, LM119-MD8, LM119 MW8, LM119 MD8, LM119H/883, and LM119J-8/883.
