Manufacturer Part Number
LM139AJ/883
Manufacturer
Texas Instruments
Introduction
The LM139AJ/883 is a general-purpose linear comparator from Texas Instruments designed for optimal performance in voltage and signal comparison applications.
Product Features and Performance
Incorporates 4 independent comparator units
Features open-collector and open-drain output type
Allows a wide supply voltage range from 5V to 30V or dual supply of ±2.5V to ±15V
Maximum input offset voltage of 2mV at 30V
Maximum input bias current of 1000pA at 5V
Typical output current of 20mA
Maximum quiescent current of 2mA
Common-mode rejection ratio (CMRR) of 70dB typically
Power supply rejection ratio (PSRR) of 60dB typically
Propagation delay typically at 1.3µs
Hysteresis at 10mV
Operating temperature range from -55°C to 125°C
Product Advantages
High precision due to low input offset voltage and bias current
High noise immunity with substantial CMRR and PSRR
Effective for handling multiple signals with four comparator elements
Suitable for extreme temperature conditions
Key Technical Parameters
Number of Elements: 4
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
Quality and Safety Features
Robust build in a 14-CDIP package ensuring durability
Extensive operating temperature range ensures reliability under extreme conditions
Compatibility
Suitable for applications requiring through-hole mounting
Compatible with wide range of supply voltages
Application Areas
Industrial systems
Automation systems
Signal processing
Power management
Product Lifecycle
Currently active
Not nearing discontinuation
Continued availability assured with no immediate upgrades or replacements specified
Several Key Reasons to Choose This Product
High reliability and performance consistency in diverse environments
Multifunctionality with four independent comparators
Excellent tolerance to power supply variations and noise
Long lifecycle with continued manufacturer support
Suited for complex electronic systems requiring precise voltage detections and comparisons
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