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Product Detailed Parameters
- Description：LOW POWER LOW OFFSET VOLTAGE QUA
- Series：-
- Mfr：Texas Instruments
- Package：Tray
- 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)：2mV @ 30V
- Current - Input Bias (Max)：1000pA @ 5V
- Current - Output (Typ)：20mA
- Current - Quiescent (Max)：2mA
- CMRR, PSRR (Typ)：70dB CMRR, 60dB PSRR
- Propagation Delay (Max)：1.3µs (Typ)
- Hysteresis：10mV
- Operating Temperature：-55°C ~ 125°C
- Package / Case：14-CSOIC (0.250", 6.35mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：14-CFP
- Grade：-
- Qualification：-
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Overview
The LM139AWG-QMLV is a quad differential comparator manufactured by Texas Instruments, designed for high-reliability aerospace and defense applications. It features four independent voltage comparators in a single package with rail-to-rail output capability. The device operates on a supply voltage range of 2 V to 36 V and draws a typical operating supply current of 500 uA. Key electrical parameters include a response time of 300 ns, an input offset voltage (Vos) of 5 mV, and an input bias current (Ib) of 25 nA. Each channel provides an output current of 6 mA. The component is rated for operation between -55 C and +125 C and is housed in a SOIC-14 surface-mount package.
Feature Summary
- Quad differential comparator architecture providing four independent comparison channels within a single integrated circuit.
- Rail-to-rail output stage allowing signal swing from ground to the positive supply rail.
- Qualified for QMLV standards ensuring suitability for critical aerospace and military environments.
- Low power consumption with minimal operating supply current requirements.
Applications
- Aerospace electronics requiring radiation-hardened or high-reliability components
- Military systems utilizing QMLV qualified parts
- Proton irradiation susceptible environment monitoring
Procurement Notes
Verify that the specific suffix 'QMLV' corresponds to the required Quality Management Level V qualification for your program. Confirm the exact part number matches the manufacturer's official QML listing. Ensure compatibility with existing board layouts for the SOIC-14 package. Validate that the radiation hardness data aligns with mission requirements.
Selection Notes
Select this component when a quad comparator with rail-to-rail outputs is needed for space-constrained designs. Consider the 300 ns response time for speed requirements. Verify that the 2 V to 36 V supply range fits the system power budget. Check if the -55 C to +125 C temperature range meets environmental specifications.
Part Context
This part belongs to the LM139 family of quad differential comparators. It shares functional similarities with standard commercial versions but includes specific processing and testing for QMLV compliance. The device is often referenced in studies regarding Single Event Transient susceptibility under proton irradiation.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Standard LM139 variants may differ in reliability qualifications and radiation hardness levels.
