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Product Detailed Parameters
- Description：QUAD DIFFERENTIAL COMPARATOR 14-
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Type：General Purpose
- Number of Elements：4
- Output Type：Open-Collector, Open-Drain
- Voltage - Supply, Single/Dual (±)：2V ~ 30V, ±1V ~ 15V
- Voltage - Input Offset (Max)：2mV @ 5V
- Current - Input Bias (Max)：0.1µA @ 5V
- Current - Output (Typ)：16mA @ 5V
- Current - Quiescent (Max)：2mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：300ns (Typ)
- 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 LM139AJB is a quad differential voltage comparator manufactured by Texas Instruments. It features four independent high-gain comparators designed for operation from a single power supply. The device includes an open-collector output configuration, allowing flexible interfacing with various logic families. It supports a wide supply voltage range and operates across an extended industrial temperature range.
Feature Summary
- Quad differential input architecture providing four independent comparison channels
- Open-collector output stage enabling wired-OR connections and level shifting
- Designed for stable operation using a single power supply source
Applications
- Voltage monitoring systems
- Threshold detection circuits
- Logic interface adapters
Procurement Notes
Verify the specific suffix 'JB' against official Texas Instruments documentation to confirm package type and temperature grade. Ensure compatibility with required operating conditions before procurement.
Selection Notes
Select this component when multiple independent voltage comparisons are required within a single integrated circuit. Consider the open-collector output limitations regarding pull-up requirements and switching speed constraints compared to rail-to-rail alternatives.
Part Context
This part belongs to the LM139 family of quad comparators. It shares functional similarities with other members like the LM239 and LM339, differing primarily in manufacturing process, temperature specifications, and reliability grades defined by the manufacturer.
