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Product Detailed Parameters
- Description：QUAD DIFFERENTIAL COMPARATOR 14-
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Type：General Purpose
- Number of Elements：4
- Output Type：Open-Collector, Open-Drain
- Voltage - Supply, Single/Dual (±)：5V ~ 30V, ±2.5V ~ 15V
- Voltage - Input Offset (Max)：2mV @ 5V
- Current - Input Bias (Max)：0.1µA @ 5V
- Current - Output (Typ)：16mA @ 5V
- Current - Quiescent (Max)：2mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：300ns (Typ)
- Hysteresis：-
- Operating Temperature：-55°C ~ 125°C
- Package / Case：14-CFlatPack
- Mounting Type：Surface Mount
- Supplier Device Package：14-CFP
- Grade：-
- Qualification：-
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Overview
The LM139AW is a quad differential comparator manufactured by Texas Instruments, housed in a 14-SOIC surface-mount package. It operates on a single or dual power supply ranging from 2 V to 30 V (single) or ±1 V to ±15 V (dual). Key electrical specifications include a maximum input offset voltage of 2 mV at 30 V, a typical output current of 20 mA, and a maximum input bias current of 0.1 µA at 5 V. The device functions within an operating temperature range of -55°C to +125°C and features open-collector/open-drain outputs without a shutdown mode.
Feature Summary
- Integrates four independent differential comparators in a single low-power package
- Features low input offset voltage for precise signal comparison
- Supports wide single-supply or split-supply voltage operation
- Provides high-output current capability with open-collector/drain configuration
Applications
- General-purpose analog signal comparison circuits
- Temperature sensing and monitoring systems
- Voltage level detection applications
Procurement Notes
Verify the specific suffix 'AW' against the official Texas Instruments datasheet to confirm package dimensions and thermal characteristics. Ensure the ordering part number matches the required tape-and-reel or cut-tape packaging format. Confirm RoHS compliance status and moisture sensitivity level prior to procurement to align with assembly requirements.
Selection Notes
Select this component when a quad comparator with low offset voltage and wide supply range is required. The SOIC-14 package suits space-constrained surface-mount designs. Consider the 20 mA output drive capability for direct interfacing with logic or relay loads. Verify that the -55°C to +125°C temperature range meets the environmental demands of the target application.
Part Context
The LM139 series belongs to Texas Instruments' family of low-power, low-offset voltage quad comparators. It serves as a general-purpose alternative to operational amplifiers used in comparator roles. The 'AW' designation typically indicates a specific tape-and-reel packaging variant within the standard SOIC-14 footprint, maintaining pin compatibility with other LM139 variants like the LM139DR or LM139ADR.
Replacement Considerations
- LM139DR
- LM139ADR
- LM339DR
