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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8UMAX
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR),Bulk
- Type：General Purpose
- Number of Elements：2
- 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)：200µA
- CMRR, PSRR (Typ)：70dB PSRR
- Propagation Delay (Max)：600ns
- Hysteresis：2mV
- Operating Temperature：-40°C ~ 125°C
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-uMAX/uSOP
- Grade：-
- Qualification：-
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Overview
The LMX393HAUA+T is a dual general-purpose low-voltage 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 internal hysteresis of 2mV for noise immunity, open-drain outputs, and input common-mode voltage range including ground. Typical supply current is 60µA per comparator at VDD = 5.0V.
Feature Summary
- Internal 2mV hysteresis provides noise immunity and prevents output oscillations with slow-moving signals
- Open-drain output configuration allows flexible interfacing
- Input common-mode voltage range includes ground potential
- No phase reversal occurs for overdriven inputs
Applications
- Mobile Communications
- Automotive Applications
- Battery-Powered Electronics
Procurement Notes
Verify the specific suffix 'HAUA' corresponds to the µMAX package variant with internal hysteresis. Confirm lead-free/RoHS compliance indicated by the '+' symbol. Ensure the source documentation explicitly lists this part number in the ordering information table before finalizing procurement plans.
Selection Notes
Select this component when drop-in replacement for LMV393 is required with added noise immunity. The internal hysteresis eliminates the need for external feedback resistors in noisy environments. Verify that the open-drain output architecture aligns with the system's pull-up requirements and logic levels.
Part Context
This device belongs to the LMX331/LMX393/LMX339 series of general-purpose, low-voltage comparators. It serves as a pin-for-pin compatible upgrade to the LMV3xx series, offering improved performance characteristics such as wider supply voltage range, better CMRR/PSRR, and reduced offset voltage while maintaining small package footprints.
Replacement Considerations
LMX393AKA+T (SOT-23 package)
FAQ
What is the function of the internal hysteresis in the LMX393H?
The internal 2mV hysteresis creates two trip points to counter parasitic effects and noise, preventing output oscillations even with slow-moving input signals.
Does the LMX393HAUA+T support single-supply operation?
Yes, it operates with a single supply voltage ranging from 1.8V to 5.5V.
