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Product Detailed Parameters
- Description：LOW POWER LOW OFFSET VOLTAGE QUA
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Type：General Purpose
- Number of Elements：4
- Output Type：Open-Collector, Open-Drain
- Voltage - Supply, Single/Dual (±)：5V ~ 30V, ±2.5V ~ 15V
- Voltage - Input Offset (Max)：5mV @ 30V
- Current - Input Bias (Max)：1000pA @ 5V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：3mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：700ns (Typ)
- Hysteresis：10mV
- 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 LM139 MDE is a quad differential comparator manufactured by Texas Instruments, designed for military-grade applications. It features four independent high-precision voltage comparators in a die configuration. The device operates on a single supply voltage ranging from +2V to +36V or dual supplies of ±1V to ±18V. Key electrical specifications include a typical input bias current of 25nA and an input offset voltage of ±1mV. The output saturation voltage is typically 250mV at a sink current of 4mA. It supports operation across a temperature range of -55°C to +125°C.
Feature Summary
- Military-grade construction for enhanced reliability
- Low power consumption with supply-independent operation
- Wide common-mode voltage range including ground
- Compatible with TTL, DTL, ECL, MOS, and CMOS logic families
Applications
- Military electronic systems requiring high reliability
- Precision voltage monitoring circuits
- Temperature sensing interfaces
- Power supply management control loops
Procurement Notes
Verify the specific revision level and lot traceability when sourcing this military-grade component. Ensure that the die form factor is compatible with your packaging and assembly process, as it requires specialized handling compared to standard packaged ICs. Confirm compliance with relevant military standards and quality certifications required for your application environment.
Selection Notes
Select the LM139 MDE when military qualification is mandatory and low power consumption is critical. It is suitable for designs requiring wide supply voltage flexibility and ground-referenced input capabilities. Consider the die format requirements for integration into custom hybrid modules or specialized packaging solutions.
Part Context
This component belongs to the LM139 family of quad differential comparators. It shares functional similarities with the LM139A and LM239A but is distinguished by its military-grade specification and die package format. The family is known for low offset voltage and low power operation, making it a standard choice for precision analog comparison tasks in demanding environments.
Replacement Considerations
LM139-MIL
FAQ
What is the input common-mode voltage range?
The common-mode voltage range includes ground and extends up to VCC+ minus 1.5V. One input can exceed VCC while maintaining proper output state.
Is the LM139 MDE available in a standard package?
No, the LM139 MDE is provided as a die (MDE), intended for integration into custom packages or hybrid circuits rather than standard surface-mount or through-hole packages.
