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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)：2.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：0°C ~ 70°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 LM339DE4 is a quad differential voltage comparator manufactured by Texas Instruments. It features four independent comparators designed for single-supply operation, with a supply voltage range of 2V to 30V. The device utilizes an SOIC-14 surface-mount package and provides open-collector outputs. Key electrical characteristics include a maximum input offset voltage of 5mV at 30V and a typical quiescent current of 2.5mA. It operates within a temperature range of 0°C to +70°C.
Feature Summary
- Integrates four independent high-gain differential comparators in a compact surface-mount package
- Designed for efficient single-supply operation across a wide voltage range
- Features open-collector outputs compatible with various logic families
Applications
- Temperature sensing circuits
- Voltage monitoring systems
- Logic level conversion interfaces
Procurement Notes
Verify the specific suffix 'E4' indicates lead-free composition and RoHS compliance as per Texas Instruments standards. Confirm the package type matches the required PCB footprint. Ensure the operating temperature range meets the environmental requirements of the target application. Cross-reference the datasheet revision to ensure compatibility with existing design specifications.
Selection Notes
Select this component when multiple independent comparison functions are required in a space-constrained design. The open-collector output allows for wired-AND configurations and flexibility in interfacing with different voltage levels. Consider the propagation delay and input offset voltage specifications against the precision requirements of the signal processing task.
Part Context
This part belongs to the LMx39 family of quad comparators from Texas Instruments, which includes variants like LM139, LM239, and LM2901. These devices share similar functional architectures but may differ in temperature ranges, offset voltages, or packaging options. The DE4 designation specifically identifies the SOIC-14 surface-mount variant with enhanced material specifications.
Replacement Considerations
Compatible substitutes include LM339DR and LM339ADRE4. Verify pinout compatibility and electrical parameter alignment before substitution. Ensure the alternative package type fits the existing board layout without modification.
