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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 LM239D is a quad differential voltage comparator manufactured by Texas Instruments, housed in a 14-pin SOIC surface-mount package. It operates on a single supply voltage ranging from 2 V to 30 V or dual supplies up to ±15 V. The device features an open-collector output compatible with TTL, DTL, ECL, MOS, and CMOS logic systems. Key electrical specifications include a maximum input offset voltage of 5 mV, a typical response time of 1.3 μs, and a quiescent current of 2 mA. The component supports an operating temperature range from -25°C to +85°C.
Feature Summary
- Quad differential architecture designed for wide single-supply operation
- Open-collector outputs ensure compatibility with various digital logic families
- Input common-mode voltage range includes ground potential
Applications
- Battery-powered monitoring circuits
- Level detection systems
- Analog-to-digital conversion interfaces
Procurement Notes
Verify the specific suffix 'D' confirms the SOIC-14 surface-mount package variant. Confirm RoHS compliance status as it varies by manufacturing date code. Ensure the supplier provides original manufacturer documentation to validate authenticity against counterfeit components.
Selection Notes
Select this component when four independent comparators are required in a compact surface-mount form factor. It is suitable for designs needing direct interface with standard logic families without additional level shifting. Consider thermal dissipation limits if multiple channels operate simultaneously at high voltages.
Part Context
This part belongs to the LMx39 series of low-power quad comparers. It shares functional similarities with the LM339 but offers improved performance characteristics such as lower offset voltage and faster response times. The series is widely used in industrial and consumer electronics requiring reliable voltage threshold detection.
Replacement Considerations
- LM239DR
- LM239AD
FAQ
Does the LM239D support dual power supplies?
Yes, the device can operate with dual supplies ranging from ±1 V to ±15 V.
What is the maximum input offset voltage?
The maximum input offset voltage is specified as 5 mV.
