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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)：3mV @ 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 LM339AD is a quad differential 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. The device features an open collector output type with a response time of 1.3 µs and a typical operating supply current of 500 µA. Each channel provides an output current capability of 6 mA. Input specifications include an input offset voltage of 3 mV and an input bias current of 250 nA. The component functions within a commercial temperature range of 0°C to +70°C.
Feature Summary
- Integrates four independent differential comparators into a single low-power package for space-constrained designs.
- Provides open-collector outputs compatible with various logic families including CMOS, DTL, ECL, MOS, and TTL.
- Operates effectively on a single power supply rail, simplifying circuit design and reducing component count.
Applications
- Temperature monitoring systems requiring precise threshold detection.
- Voltage level sensing circuits for power management applications.
- Logic interface adapters between different voltage domains.
Procurement Notes
Verify the specific manufacturer source, as STMicroelectronics also produces parts with this designation. Confirm RoHS compliance status and ensure the package matches the required SOIC-14 footprint. Check for obsolescence notices or lifecycle changes before finalizing procurement plans.
Selection Notes
Select this component when a quad comparator configuration is required with low power consumption and single-supply operation. Ensure the application environment stays within the 0°C to +70°C commercial temperature range. Verify that the open-collector output architecture aligns with the downstream logic requirements.
Part Context
This part belongs to the LM339 family of analog comparators, which are widely used for general-purpose voltage comparison tasks. The 'A' suffix typically denotes improved electrical characteristics such as lower offset voltage compared to standard variants. The AD suffix indicates the specific surface-mount packaging variant.
Replacement Considerations
LM339ADR
FAQ
What is the maximum supply voltage for the LM339AD?
The maximum supply voltage is 30 V.
Does the LM339AD support dual supply operation?
The datasheet specifies single supply operation ranging from 2 V to 30 V.
