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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 LM339D is a quad differential voltage comparator manufactured by Texas Instruments, designed for operation from a single power supply. It features four independent comparators within a 14-pin SOIC package. The device supports a supply voltage range of 2V to 30V and operates with an open-collector output configuration. Key electrical parameters include a typical response time of 1.3µs, a maximum input offset voltage of 5mV, and a supply current of approximately 500µA. It functions 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
- Features open-collector outputs allowing flexible wired-AND logic connections
- Operates efficiently from a single power supply across a wide voltage range
Applications
- Voltage monitoring systems
- Analog-to-digital conversion interfaces
- Over-voltage protection circuits
Procurement Notes
Verify the specific manufacturer source, as the LM339D designation is also utilized by NXP Semiconductors. Confirm that the component matches the intended electrical specifications and pinout compatibility before integration into the design. Ensure the package type corresponds exactly to the required PCB footprint.
Selection Notes
Select this component when a low-cost, quad-channel comparator solution is required for general-purpose applications. It is suitable for designs needing multiple threshold detection points without requiring complex external circuitry. Consider the open-collector output limitation when designing pull-up resistor networks for the signal lines.
Part Context
This part belongs to the LMx39 family of quad comparators, which includes variants like the LM139, LM239, and LM2901. These devices share similar functional characteristics but may differ in temperature ranges or specific electrical tolerances. The LM339 series is widely recognized for its versatility in single-supply operations.
Replacement Considerations
LM339DR (Texas Instruments)
FAQ
What is the output configuration of the LM339D?
The LM339D utilizes an open-collector output configuration for all four comparators.
Does the LM339D support dual power supplies?
The LM339D is primarily designed for single-supply operation, though it can function with split supplies within its specified voltage limits.
