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Product Detailed Parameters
- Description：IC COMPARATOR 4 GEN PUR 14SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Type：General Purpose
- Number of Elements：4
- Output Type：Open-Drain
- Voltage - Supply, Single/Dual (±)：1.8V ~ 5.5V
- Voltage - Input Offset (Max)：7mV @ 5V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：73mA @ 5V
- Current - Quiescent (Max)：300µA
- CMRR, PSRR (Typ)：70dB PSRR
- Propagation Delay (Max)：600ns
- Hysteresis：2mV
- Operating Temperature：-40°C ~ 125°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 LMX339ASD+T is a quad general-purpose low-voltage comparator manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply voltage ranging from 1.8V to 5.5V and supports an automotive temperature range of -40°C to +125°C. The device features an open-drain output, input common-mode voltage range including ground, and no phase reversal for overdriven inputs. It consumes approximately 60µA per comparator at 5.0V. The part is housed in a 14-pin SO package.
Feature Summary
- Drop-in pin-for-pin compatible replacement for LMV339
- Low supply current consumption with wide operating voltage range
- Input common-mode voltage range includes ground potential
- No phase reversal occurs when inputs are overdriven
Applications
- Mobile communications systems
- Automotive applications
- Battery-powered electronics
- General-purpose portable devices
Procurement Notes
Verify the component status as this specific part number may be discontinued or subject to product change notices. Confirm that the 'SD' suffix corresponds to the 14-pin SO package type required for your board layout. Ensure compatibility with RoHS3 standards if environmental compliance is mandatory for your manufacturing process.
Selection Notes
Select this component when space constraints require a compact 14-pin surface-mount package compared to larger alternatives. It serves as a direct upgrade path from older LMV339 designs without requiring PCB redesign. Consider the LMX339H variant if internal hysteresis is needed to prevent output oscillations caused by noisy signals.
Part Context
This device belongs to the LMX331/LMX393/LMX339 series of general-purpose comparators. Manufactured using advanced submicron CMOS technology, the series offers superior performance over traditional BiCMOS or bipolar versions. The LMX339 specifically provides four independent comparators in a tiny package format suitable for high-density circuit designs.
Replacement Considerations
LMX339AUD+T (14-pin TSSOP package)
FAQ
Does the LMX339ASD+T include internal hysteresis?
No, the standard LMX339 does not have internal hysteresis. You must use the LMX339H variant or add external resistors to generate hysteresis.
What is the input common-mode voltage range?
The input common-mode voltage range extends from -0.1V below the negative supply to within 0.7V of the positive supply, allowing it to include ground.
