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Product Detailed Parameters
- Description：IC COMPARATOR 4 DIFF 14SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Type：General Purpose
- Number of Elements：4
- Output Type：Open-Collector
- Voltage - Supply, Single/Dual (±)：2V ~ 30V, ±1V ~ 15V
- Voltage - Input Offset (Max)：5mV @ 30V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：20mA
- Current - Quiescent (Max)：2mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-25°C ~ 85°C
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：14-SOIC
- Grade：-
- Qualification：-
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Overview
The LM239DG4 is a quad differential voltage comparator manufactured by Texas Instruments, designed for operation from a single power supply over a wide voltage range. It features four independent precision comparators with an offset voltage specification as low as 5 mV maximum. The device operates within a supply voltage range of +2 V to +36 V or ±1 V to ±18 V. It exhibits very low supply current of 1.1 mA, independent of the supply voltage. The input common-mode voltage range includes ground, and the outputs are compatible with TTL, DTL, ECL, MOS, and CMOS logic families.
Feature Summary
- Four independent precision-voltage comparators integrated into a single package
- Wide single-supply voltage range or dual supplies capability
- Input common-mode voltage range includes ground potential
- Outputs compatible with various digital logic families including TTL and CMOS
Applications
- Single-supply voltage monitoring systems
- Threshold detection circuits
- Logic level shifting interfaces
- Window comparator configurations
Procurement Notes
Verify the specific suffix 'G4' indicates lead-free RoHS compliance during procurement. Confirm the package type matches the required SOIC-14 footprint for PCB layout. Ensure the operating temperature range aligns with the intended application environment specifications before finalizing orders.
Selection Notes
Select this component when multiple independent comparison functions are required in a compact form factor. Consider the low supply current for battery-operated applications. Verify that the open-collector output configuration suits the pull-up requirements of the downstream circuitry. Check compatibility with the system's logic voltage levels.
Part Context
This part belongs to the LM239 family of quad differential comparators. It shares functional similarities with the LM139 and LM339 series but offers specific performance characteristics regarding offset voltage and supply current. The device is widely used in industrial and consumer electronics requiring reliable voltage threshold detection.
Replacement Considerations
LM239DRG4: Pin-compatible alternative with similar electrical characteristics. LM339DRG4: Functional equivalent with potentially different speed and offset specifications. LM139DRG4: Industrial grade variant with extended temperature range options.
