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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR SOT23-5
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Type：General Purpose
- Number of Elements：1
- 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)：120µA
- CMRR, PSRR (Typ)：70dB PSRR
- Propagation Delay (Max)：600ns
- Hysteresis：2mV
- Operating Temperature：-40°C ~ 125°C
- Package / Case：SC-74A, SOT-753
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
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Overview
The LMX331AUK+T is a single-channel, low-voltage analog comparator manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 1.8V to 5.5V and supports an automotive temperature range from -40°C to +125°C. The device features a 5-pin SOT23 package with dimensions of 2.0mm x 2.1mm x 1.0mm. Key electrical characteristics include a typical input offset voltage of 7mV at 5V operation, a maximum propagation delay of 100ns at 100mV overdrive, and a low supply current of approximately 60µA per comparator at 5V.
Feature Summary
- Drop-in pin-for-pin compatible replacement for LMV331/LMV393/LMV339 series
- Low supply voltage operation with wide operating temperature range
- Small space-saving tiny-pack footprint suitable for portable devices
- Superior performance over BiCMOS or bipolar versions including improved RF immunity
Applications
- Mobile communications systems
- Automotive applications requiring extended temperature stability
- Battery-powered electronics and general-purpose portable devices
- Notebooks and PDAs
Procurement Notes
Verify the specific ordering suffix to confirm package type and RoHS compliance status. The '+T' designation indicates tape and reel packaging. Confirm that the component meets lead-free requirements if applicable to your manufacturing process. Check for any regional shipping restrictions or availability limitations before finalizing procurement plans.
Selection Notes
Select this component when a low-cost, general-purpose comparator is required in a small form factor. Ensure the application benefits from the open-drain output structure and the specified input common-mode voltage range. Consider the LMX331H variant if internal hysteresis is needed for noise immunity without external components.
Part Context
This part belongs to the LMX331/LMX393/LMX339 family of general-purpose, low-voltage comparators. These devices are designed using advanced submicron CMOS technology to offer advantages such as wider supply voltage ranges, better CMRR and PSRR, and reduced offset compared to older technologies. They serve as direct replacements for legacy LMV series parts.
Replacement Considerations
The LMX331AUK+T is a drop-in replacement for the LMV331. Verify pin compatibility and electrical specifications against existing designs. No other public substitute part numbers are confirmed in the provided documentation.
